ECOREGION 1: LIMPOPO PLAIN
Table 1: Main attributes of the Limpopo Plain Ecoregion.
Main Attributes Limpopo Plain
Terrain Morphology: Broad division Plains; Low Relief; (dominant types in bold) (Primary) Plains; moderate relief;
Lowlands; Hills and Mountains; moderate and high relief;
Closed hills; Mountains; moderate and high relief (limited)
Vegetation types (dominant types in bold) Mopane Bushveld; Sweet Bushveld; Mixed Bushveld; (Primary) Waterberg Moist Mountain Bushveld;
Clay Thorn Bushveld; Kalahari Plains Thorn Bushveld
Altitude (m a.m.s.l) (Secondary) 300-1100 (1100-1300 limited)
MAP (mm) (modifying) 200 to 600
Coefficient of Variation (%) of annual 25 to 40 precipitation
Rainfall concentration index 60 to >65
Rainfall seasonality Early to mid summer
Mean annual temp. (°C) 18 to >22
Mean daily max. temp. (°C): February 26 to 32
Mean daily max. temp. (°C): July 20 to >24
Mean daily min. temp. (°C): February 16 to >20
Mean daily min. temp. (°C): July 2 to >10
Median annual simulated runoff (mm) for <5 to 60 (60-100 limited) quaternary catchment
Main Attributes Limpopo Plain 1.01
Terrain Morphology: Broad division Plains; low relief; Plains; moderate relief;
Lowlands, Hills and Mountains; moderate and high relief
Terrain Morphology Plains; Slightly undulating plains; Slightly irregular plains; Extremely irregular plains (almost hilly)
Lowlands with hills
Vegetation types (dominant types in Mopane Bushveld bold) (Primary)
Altitude (m a.m.s.l.) 100 to 900
MAP (mm) 200 to 400
Coefficient of variation (% of annual 30 to 39 Draft: Resource Quality Information Services, Roodeplaat Dam - 2008 precipitation)
Rainfall concentration index >65
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 20 to >22
Mean daily max temp (°C) February 28 to 32
Mean daily max temp (°C) July 20 to 26
Mean daily min temp (°C) February 18 to >20
Mean daily min temp (°C) July 4 to >10
Median annual simulated runoff (mm) for <5 to 10 (10 to 40 limited) quaternary catchment
Main Attributes Limpopo Plain 1.02
Terrain Morphology: Broad division Plains; low relief; Plains; moderate relief;
Lowlands, Hills and Mountains; moderate and high relief; Closed Hills, Mountains; moderate and high relief.
Terrain Morphology Plains; Slightly undulating plains; Slightly irregular plains; extremely irregular plains (almost hilly) (limited); Moderately undulating plains;
Lowlands with parallel hills; Lowlands with mountains;
High mountains
Vegetation types (dominant types in bold) (Primary) SWEET BUSHVELD Altitude (m a.m.s.l.) 500 to 1300
MAP (mm) 300 to 500
Coefficient of variation (% of annual 25 to 39 precipitation)
Rainfall concentration index 60 to >65
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 18 to 22
Mean daily max temp (°C) February 24 to 32
Mean daily max temp (°C) July 18 to 24
Mean daily min temp (°C) February 16 to 19
Mean daily min temp (°C) July 2 to 7
Median annual simulated runoff (mm) for <5 to 40; (40 to 60; 80 to 100 limited) quaternary catchment
2
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes Limpopo Plain 1.03
Terrain Morphology: Broad division Plains; low relief; Plains; moderate relief;
Lowlands, Hills and Mountains; moderate and high relief (limited)
Terrain Morphology Plains; Slightly undulating plains; Slightly irregular plains
Lowlands with parallel hills
Vegetation types (dominant types in bold) Mixed Bushveld; Waterberg Moist Mountain Bushveld; Kalahari (Primary) Plains Thorn Bushveld
Altitude (m a.m.s.l.) 700 to 1300
MAP (mm) 300 to 600
Coefficient of variation (% of annual 25 to 34 precipitation)
Rainfall concentration index 60 to >65
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 18 to 22
Mean daily max temp (°C) February 28 to 32
Mean daily max temp (°C) July 18 to 24
Mean daily min temp (°C) February 16 to 19
Mean daily min temp (°C) July 2 to 5
Median annual simulated runoff (mm) for <5 to 60 quaternary catchment
Main Attributes Limpopo Plain 1.04
Terrain Morphology: Broad division Plains; low relief;
Lowlands, hills and Mountains; moderate and high relief
Terrain Morphology Plains
Lowlands with parallel hills
Vegetation types (dominant types in bold) Clay Thorn Bushveld (Primary)
Altitude (m a.m.s.l.) 700 to 1100
MAP (mm) 300 to 500
Coefficient of variation (% of annual 25 to 34 precipitation)
Rainfall concentration index 60 to >65
3
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes Limpopo Plain 1.03
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 18 to 22
Mean daily max temp (°C) February 30 to 32
Mean daily max temp (°C) July 20 to 24
Mean daily min temp (°C) February 16 to 19
Mean daily min temp (°C) July 2 to 3
Median annual simulated runoff (mm) for (10 to 20 very limited); 20 to 40 quaternary catchment
4
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 2: SOUTPANSBERG
Table 2: Main attributes of the Soutpansberg Ecoregion.
Main Attributes Soutpansberg
Terrain Morphology: Broad division (dominant Plains; Low Relief; (limited) types in bold) (Primary) Plains; Moderate Relief; (very limited)
Lowlands; Hills and Mountains; Moderate and High Relief;
Closed Hills; Mountains; Moderate and High Relief;
Vegetation types (dominant types in bold) Sour Lowveld Bushveld; Soutpansberg Arid Mountain (Primary) Bushveld; Mopane Bushveld (very limited)
Patches AfroMontane Forest.
Altitude (m a.m.s.l) (secondary) 300-1700
MAP (mm) (modifying) 200 to 1000
Coefficient of Variation (% of annual <20 to 40 precipitation)
Rainfall concentration index 55 to >65
Rainfall seasonality Mid summer
Mean annual temp. (°C) 16 to >22
Mean daily max. temp. (°C): February 22 to 32
Mean daily max. temp. (°C): July 16 to >24
Mean daily min. temp. (°C): February 14 to >20
Mean daily min temp. (°C): July 4 to >10
Median annual simulated runoff (mm) for <5 to 200; >250 (limited) quaternary catchment
Main Attributes Soutpansberg 2.01
Terrain Morphology: Broad division Plains; low relief; Lowlands, Hills and Mountains; moderate and high relief;
Closed Hills, Mountains; moderate and high relief
Terrain Morphology Slightly undulating plains;
Lowlands with mountains
High Mountains
Vegetation types (dominant types in bold) Soutpansberg Arid Mountain Bushveld
5
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
(Primary)
Altitude (m a.m.s.l.) 700 to 1700
MAP (mm) 300 to 500
Coefficient of variation (% of annual 25 to 34 precipitation)
Rainfall concentration index >65
Rainfall seasonality Mid summer
Mean annual temp (°C) 16 to 22
Mean daily max temp (°C) February 24 to 30
Mean daily max temp (°C) July 16 to 22
Mean daily min temp (°C) February 14 to 19
Mean daily min temp (°C) July 4 to 7
Median annual simulated runoff (mm) for <5 (limited) to 40 quaternary catchment
Main Attributes Soutpansberg 2.02
Terrain Morphology: Broad division Plains; low relief; Plains; moderate relief; Lowlands, Hills and Mountains; moderate and high relief
Terrain Morphology Plains; Slightly undulating plains
Extremely irregular plains (low hills) and pans
Lowlands with hills
Vegetation types (dominant types in bold) Soutpansberg Arid Mountain Bushveld (primary)
Altitude (m a.m.s.l.) 300 to 900 (900 to 1700 limited)
MAP (mm) 200 to 500
Coefficient of variation (% of annual 25 to 39 precipitation)
Rainfall concentration index 60 to >65
Rainfall seasonality Mid summer
Mean annual temp (°C) 16 to >22
Mean daily max temp (°C) February 24 to 32
Mean daily max temp (°C) July 18 to 26
Mean daily min temp (°C) February 18 to >20
6
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean daily min temp (°C) July 4 to >10
Median annual simulated runoff (mm) for <5 (limited) to 40 quaternary catchment
Main Attributes Soutpansberg 2.03
Terrain Morphology: Broad division Plains; low relief; Closed hills, Mountains; moderate and high relief
Terrain Morphology (Primary) Slightly undulating plains;
Low mountains
Vegetation types (dominant types in bold) Soutpansberg Arid Mountain Bushveld (Primary)
Altitude (m a.m.s.l.) 300 to 1500
MAP (mm) 300 to 700
Coefficient of variation (% of annual 20 to 34 precipitation)
Rainfall concentration index 60 to >65
Rainfall seasonality Mid summer
Mean annual temp (°C) 16 to 22
Mean daily max temp (°C) February 22 to 32
Mean daily max temp (°C) July 16 to 24
Mean daily min temp (°C) February 14 to 19
Mean daily min temp (°C) July 4 to 9
Median annual simulated runoff (mm) for 5 to 10; 20 to 100; (80 to 100 limited); 150 to 200 (limited) quaternary catchment
Main Attributes Soutpansberg 2.04
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief
Terrain Morphology Low mountains
Vegetation types (dominant types in bold) Soutpansberg Arid Mountain Bushveld (limited); Sour (primary) Lowveld Bushveld;
Patches Mopane Shrubveld
Patches Afromontane forest
Altitude (m a.m.s.l.) 300 to 1500
MAP (mm) 300 to 1000
7
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes Soutpansberg 2.03
Coefficient of variation (% of annual <20 to 34 precipitation)
Rainfall concentration index 55 to >65
Rainfall seasonality Mid summer
Mean annual temp (°C) 16 to >22
Mean daily max temp (°C) February 22 to 32
Mean daily max temp (°C) July 16 to 26
Mean daily min temp (°C) February 14 to >20
Mean daily min temp (°C) July 4 to >10
Median annual simulated runoff (mm) for 5-10 (limited); 20 to 200; >250 (limited) quaternary catchment
8
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 3: LOWVELD
Table 3: Main attributes of the Lowveld Ecoregion.
Main Attributes Lowveld
Terrain Morphology: Broad division (dominant Plains; Low Relief; types in bold) (Primary) Plains; Moderate Relief;
Lowlands, Hills and Mountains; Moderate and High Relief (limited)
Open Hills, Lowlands; Mountains; Moderate to High Relief; (limited)
Closed Hills; Mountains; Moderate and High Relief (Limited)
Vegetation types (dominant types in bold) Mopane Bushveld; Mopane Shrubveld; Mixed (Primary) Lowveld Bushveld; Sour Lowveld Bushveld; Sweet Lowveld Bushveld; Natal Lowveld Bushveld; Lebombo Arid Mountain Bushveld; Mixed Bushveld
North Eastern Mountain Grassland;
Altitude (m a.m.s.l) (secondary) 0-700; 700-1300 limited
MAP (mm) (modifying) 200 to 1000
Coefficient of Variation (% of annual precipitation) <20 to 35
Rainfall concentration index 30 to >65
Rainfall seasonality Early to late summer
Mean annual temp. (°C) 16 to >22
Mean daily max. temp. (°C): February 24 to 32
Mean daily max. temp. (°C): July 18 to >24
Mean daily min. temp. (°C): February 14 to >20
Mean daily min temp. (°C): July 4 to >10
Median annual simulated runoff (mm) for 10 to >250 quaternary catchment
Main Attributes Lowveld 3.01
Terrain Morphology: Broad division Plains; moderate relief; Open Hills, Lowlands, Mountains; moderate to high relief; Closed Hills, Mountains; moderate and high relief Terrain Morphology Slightly irregular plains; Strongly undulating plains
9
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes Lowveld
Hills and Lowlands
High Mountains
Vegetation types (dominant types in bold) Sour Lowveld Bushveld; Mixed Bushveld (Primary) Patches Afromontane Forest
Altitude (m a.m.s.l.) 500 to 900 )900 to 1300 limited)
MAP (mm) <20 to 34
Coefficient of variation (% of annual precipitation) 55 to >65
Rainfall concentration index Mid summer
Rainfall seasonality
Mean annual temp (°C) 16 to 22
Mean daily max temp (°C) February 26 to 32
Mean daily max temp (°C) July 20 to 24
Mean daily min temp (°C) February 17 to >20
Mean daily min temp (°C) July 6 to 9
Median annual simulated runoff (mm) for 40 to 200; >250 quaternary catchment
Main Attributes Lowveld 3.02
Terrain Morphology: Broad division Plains; low relief (limited); Plains; moderate relief;
Open Hills, Lowlands, Mountains; moderate to high relief
Terrain Morphology Slightly undulating plains (limited); Slightly irregular plains; Moderately undulating plains
Hills and Lowlands
Vegetation types (dominant types in bold) Mixed Lowveld Bushveld; Sour Lowveld Bushveld (Primary)
Altitude (m a.m.s.l.) 300 to 1100
MAP (mm) 400 to 700
Coefficient of variation (% of annual precipitation) 20 to 34
Rainfall concentration index 60 to >65
Rainfall seasonality Mid summer
Mean annual temp (°C) 18 to 22
10
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes Lowveld
Mean daily max temp (°C) February 26 to 32
Mean daily max temp (°C) July 20 to 24
Mean daily min temp (°C) February 16 to >20
Mean daily min temp (°C) July 6 to 9
Median annual simulated runoff (mm) for 20 to 100 quaternary catchment
Main Attributes Lowveld 3.03
Terrain Morphology: Broad division Plains; low relief; Plains; moderate relief;
Open Hills, Lowlands, Mountains; moderate to high relief
Terrain Morphology Slightly undulating plains, Slightly irregular plains; Extremely irregular plains (almost hilly)
Hills and Lowlands
Vegetation types (dominant types in bold) Mopane Bushveld; Mopane Shrubveld (Primary)
Altitude (m a.m.s.l.) 100 to 700
MAP (mm) 300 to 600
Coefficient of variation (% of annual precipitation) 25 to 34
Rainfall concentration index 60 to >64
Rainfall seasonality Mid summer
Mean annual temp (°C) 20 to >22
Mean daily max temp (°C) February 28 to 32
Mean daily max temp (°C) July 22 to 26
Mean daily min temp (°C) February 18 to >20
Mean daily min temp (°C) July 6 to 9
Median annual simulated runoff (mm) for 10 to 100 quaternary catchment
Main Attributes Lowveld 3.04
Terrain Morphology: Broad division Plains; low relief; Plains; moderate relief;
Closed Hills, Mountains; moderate and high relief
Terrain Morphology Plains; Extremely irregular plains (almost hilly)
Hills
11
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes Lowveld
Vegetation types (dominant types in bold) Mopane Bushveld (Primary)
Altitude (m a.m.s.l.) 300 to 700
MAP (mm) 300 to 500
Coefficient of variation (% of annual precipitation) 25 to 34
Rainfall concentration index ≥65
Rainfall seasonality Mid summer
Mean annual temp (°C) 20 to >22
Mean daily max temp (°C) February 28 to 32
Mean daily max temp (°C) July 22 to 26
Mean daily min temp (°C) February >20
Mean daily min temp (°C) July 8 to >10
Median annual simulated runoff (mm) for 20 to 40; 60 to 100 quaternary catchment
Main Attributes Lowveld 3.05
Terrain Morphology: Broad division Plains; low relief; Plains; moderate relief
Terrain Morphology (Secondary) Plains, Slightly undulating plains (limited), Slightly irregular plains (limited)
Vegetation types (dominant types in bold) Mopane Shrubveld; Lebombo Arid Mountain Bushveld (Primary)
Altitude (m a.m.s.l.) 100 to 500
MAP (mm) 300 to 800
Coefficient of variation (% of annual precipitation) 25 to 34
Rainfall concentration index ≥65
Rainfall seasonality Mid summer
Mean annual temp (°C) 20 to >22
Mean daily max temp (°C) February 28 to 32
Mean daily max temp (°C) July 22 to 26
Mean daily min temp (°C) February >20
Mean daily min temp (°C) July 8 to 9
Median annual simulated runoff (mm) for 20 to 100
12
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes Lowveld quaternary catchment
Main Attributes Lowveld 3.06
Terrain Morphology: Broad division Plains; low relief; Plains; moderate relief;
Closed Hills, Mountains; moderate and high relief
Terrain Morphology Plains; Slightly undulating plains; Extremely irregular plains (almost hilly)
Low Mountains
Vegetation types (dominant types in bold) Sweet Lowveld Bushveld (Primary)
Altitude (m a.m.s.l.) 100 to 500
MAP (mm) 400 to 800
Coefficient of variation (% of annual precipitation) 20 to 34
Rainfall concentration index 50 to >65
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 20 to >22
Mean daily max temp (°C) February 26 to 32
Mean daily max temp (°C) July 20 to 26
Mean daily min temp (°C) February 18 to >20
Mean daily min temp (°C) July 8 to >10
Median annual simulated runoff (mm) for 40 to 150 quaternary catchment
Main Attributes Lowveld 3.07
Terrain Morphology: Broad division Plains; low relief; Plains moderate relief;
Open Hills, Lowlands, Mountains; moderate to high relief;
Closed Hills, Mountains; moderate and high relief
Terrain Morphology (Secondary) Slightly undulating plains; Slightly
irregular plains, Extremely irregular plains (almost hilly), Moderately undulating plains
Undulating hills and lowlands
Low Mountains; High Mountains
Vegetation types (dominant types in bold) Mixed Lowveld Bushveld, Sour Lowveld Bushveld
13
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes Lowveld
(Primary)
Altitude (m a.m.s.l.) 100 to 1100
MAP (mm) 400 to 1000
Coefficient of variation (% of annual precipitation) <20 to 34
Rainfall concentration index 50 to >65
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 16 to >22
Mean daily max temp (°C) February 24 to 32
Mean daily max temp (°C) July 18 to 26
Mean daily min temp (°C) February 14 to >20
Mean daily min temp (°C) July 4 to 9
Median annual simulated runoff (mm) for 10 to >250 quaternary catchment
14
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 4: NORTH EASTERN HIGHLANDS
Table 4: Main attributes of the North Eastern Highlands Ecoregion.
Main Attributes North Eastern Highlands
Terrain Morphology: Broad division (dominant Plains; Moderate Relief types in bold) (Primary) Open Hills, Lowlands, Mountains; Moderate to High Relief
Closed Hills, Mountains; Moderate and High Relief
Vegetation types (dominant types in bold) Mixed Bushveld; Mixed Lowveld Bushveld; Sour (Primary) Lowveld Bushveld; Natal Lowveld Bushveld (limited)
North Eastern Mountain Grassland;
Patches Afromontane Forest
Altitude (m a.m.s.l) (primary) 300-1300 (1300-1500 limited)
MAP (mm) (modifying) 400 to 1000
Coefficient of Variation (% of annual precipitation) <20 to 30
Rainfall concentration index 50 to >65
Rainfall seasonality Early to mid summer
Mean annual temp. (°C) 16 to 22
Mean daily max. temp. (°C): February 24 to 32
Mean daily max. temp. (°C): July 18 to>22
Mean daily min. temp. (°C): February 14 to 20
Mean daily min temp. (°C): July 2 to 10
Median annual simulated runoff (mm) for 20 to >250 quaternary catchment
Main Attributes North Eastern Highlands 4.01
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief
Terrain Morphology Low Mountains
Vegetation types (dominant types in bold) Mixed Bushveld (Primary)
Altitude (m a.m.s.l.) 700 to 1300
MAP (mm) 300 to 800
Coefficient of variation (% of annual precipitation) 20 to 34
15
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Rainfall concentration index 60 to >65
Rainfall seasonality Mid summer
Mean annual temp (°C) 16 to 20
Mean daily max temp (°C) February 24 to 30
Mean daily max temp (°C) July 18 to 22
Mean daily min temp (°C) February 14 to 17
Mean daily min temp (°C) July 4 to 7
Median annual simulated runoff (mm) for 20 to 60 quaternary catchment
Main Attributes North Eastern Highlands 4.02
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief
Terrain Morphology Low Mountains
Vegetation types (dominant types in bold) Sour Lowveld Bushveld; Mixed Lowveld Bushveld (primary) Patches Afromontane Forest
Altitude (m a.m.s.l.) 500 to 1500
MAP (mm) 400 to 1000
Coefficient of variation (% of annual precipitation) <20 to 29
Rainfall concentration index 55 to >65
Rainfall seasonality Mid summer
Mean annual temp (°C) 16 to 22
Mean daily max temp (°C) February 22 to 30
Mean daily max temp (°C) July 16 to 24
Mean daily min temp (°C) February 14 to 19
Mean daily min temp (°C) July 4 to 7
Median annual simulated runoff (mm) for 40 to 250 quaternary catchment
Main Attributes North Eastern Highlands 4.03
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief
Terrain Morphology High Mountains
Vegetation types (dominant types in bold) Mixed Lowveld Bushveld; Sour Lowveld Bushveld (Primary) (limited)
16
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes North Eastern Highlands 4.03
Altitude (m a.m.s.l.) 500 to 700
MAP (mm) 400 to 600
Coefficient of variation (% of annual precipitation) 20 to 34
Rainfall concentration index 60 to 64
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 20 to 22
Mean daily max temp (°C) February 28 to 32
Mean daily max temp (°C) July 18 to 22
Mean daily min temp (°C) February 18 to 19
Mean daily min temp (°C) July 6 to 7
Median annual simulated runoff (mm) for 40 to 80; 150 to 200 quaternary catchment
Main Attributes North Eastern Highlands 4.04
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief
Terrain Morphology (Primary) Low Mountains
Vegetation types (dominant types in bold) Sour Lowveld Bushveld
Altitude (m a.m.s.l.) 700 to 1300
MAP (mm) 600 to 1000
Coefficient of variation (% of annual precipitation) <20 to 29
Rainfall concentration index 55 to 60
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 14 to 22
Mean daily max temp (°C) February 24 to 30
Mean daily max temp (°C) July 18 to 24
Mean daily min temp (°C) February 14 to 19
Mean daily min temp (°C) July 4 to 7
Median annual simulated runoff (mm) for 60 to >250 quaternary catchment
Main Attributes North Eastern Highlands 4.05
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief
17
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes North Eastern Highlands 4.03
Terrain Morphology High Moutains
Vegetation types (dominant types in bold) Sour Lowveld Bushveld (Primary) North Eastern Mountain Grassland
Altitude (m a.m.s.l.) 500 to 1300
MAP (mm) 600 to 1000
Coefficient of variation (% of annual precipitation) <20 to 24
Rainfall concentration index 50 to 60
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 16 to 22
Mean daily max temp (°C) February 24 to 30
Mean daily max temp (°C) July 18 to 24
Mean daily min temp (°C) February 15 to 19
Mean daily min temp (°C) July 4 to 7
Median annual simulated runoff (mm) for 80 to 150; 200 to >250 quaternary catchment
Main Attributes North Eastern Highlands 4.06
Terrain Morphology: Broad division Plains; moderate relief; Open Hills, Lowlands, Mountains; moderate to high relief
Terrain Morphology (Primary) Moderately undulating plains
Undulating hills and lowlands
Vegetation types (dominant types in bold) North Eastern Mountain Grassland
Natal Lowveld Bushveld (limited)
Altitude (m a.m.s.l.) 300 to 1300
MAP (mm) 600 to 1000
Coefficient of variation (% of annual precipitation) <20 to 29
Rainfall concentration index 50 to 60
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 16 to 22
Mean daily max temp (°C) February 24 to 32
Mean daily max temp (°C) July 18 to 26
18
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes North Eastern Highlands 4.03
Mean daily min temp (°C) February 14 to 19
Mean daily min temp (°C) July 2 to 9
Median annual simulated runoff (mm) for 60 to >250 quaternary catchment
19
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 5: NORTHERN PLATEAU
Table 5: Main attributes of the Northern Plateau Ecoregion.
Main Attributes Northern Plateau
Terrain Morphology: Broad division (dominant Plains; Low Relief; types in bold) (Primary) Plains; Moderate Relief;
Closed Hills; Mountains; Moderate and High Relief (Limited)
Vegetation types (dominant types in bold) Mixed Bushveld; Clay Thorn Bushveld (limited): (Primary) North Eastern Mountain Grassland (Limited)
Altitude (m a.m.s.l) (secondary) 900-1500 (1500-1700 limited)
MAP (mm) (modifying) 300 to 700
Coefficient of Variation (% of annual 25 to 35 precipitation)
Rainfall concentration index 60 to >65
Rainfall seasonality Early to mid summer
Mean annual temp. (°C) 16 to 20
Mean daily max. temp. (°C): February 24 to 30
Mean daily max. temp. (°C): July 18 to 24
Mean daily min. temp. (°C): February 14 to 20
Mean daily min temp. (°C): July 2-5
Median annual simulated runoff (mm) for 10 to 60; 60 to 80 (limited) quaternary catchment
Main Attributes Northern Plateau 5.01
Terrain Morphology: Broad division Plains; low relief; Plains; moderate relief
Terrain Morphology (Primary) Slightly undulating plains; Moderately undulating plains
Vegetation types (dominant types in bold) Mixed Bushveld, Clay Thorn Bushveld (limited)
North Eastern Mountain Grassland (limited)
Altitude (m a.m.s.l.) 900 to 1500
MAP (mm) 300 to 500
Coefficient of variation (% of annual 30 to 34 precipitation)
20
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Rainfall concentration index 60 to >65
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 16 to 20
Mean daily max temp (°C) February 24 to 30
Mean daily max temp (°C) July 18 to 22
Mean daily min temp (°C) February 14 to 19
Mean daily min temp (°C) July 2 to 5
Median annual simulated runoff (mm) for 10 to 60 quaternary catchment
Main Attributes Northern Plateau 5.02
Terrain Morphology: Broad division Plains; moderate relief;
Closed Hills, Mountains; moderate and high relief
Terrain Morphology (Primary) Strongly undulating plains;
Hills (limited)
Vegetation types (dominant types in bold) Mixed Bushveld
North Eastern Mountain Grassland (limited)
Altitude (m a.m.s.l.) 1100 to 1500 (15 to 1700 limited)
MAP (mm) 300 to 700
Coefficient of variation (% of annual 25 to 34 precipitation)
Rainfall concentration index 60 to >65
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 16 to 20
Mean daily max temp (°C) February 24 to 28
Mean daily max temp (°C) July 16 to 20
Mean daily min temp (°C) February 14 to 17
Mean daily min temp (°C) July 2 to 5
Median annual simulated runoff (mm) for 20 to 80 quaternary catchment
21
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 6: WATERBERG
Table 6: Main attributes of the Waterberg Ecoregion.
Main Attributes Waterberg
Terrain Morphology: Broad division (dominant Lowlands; Hills and Mountains; Moderate and High Relief; types in bold) (Primary) Table Lands; Moderate and High Relief.
Plains; Low Relief (limited)
Vegetation types (dominant types in bold) Waterberg Moist Mountain Bushveld; Mixed Bushveld; (Primary) Sweet Bushveld (limited)
Altitude (m a.m.s.l) (Modifying) 700 –900
9limited), 900-1700
MAP (mm) (modifying) 300 to 600
Coefficient of Variation (% of annual 20 to 35 precipitation)
Rainfall concentration index 60 to >65
Rainfall seasonality Early to mid summer
Mean annual temp. (°C) 14 to 22
Mean daily max. temp. (°C): February 24 to 32
Mean daily max. temp. (°C): July 16 to 24
Mean daily min. temp. (°C): February 12 to 20
Mean daily min temp. (°C): July 2 to 6
Median annual simulated runoff (mm) for <5 (limited); 10 to 60, 60 to 100 (limited) quaternary catchment
Main Attributes Waterberg 6.01
Terrain Morphology: Broad division Table-lands; moderate and high relief
Terrain Morphology (Primary) Table-lands (mountain and hill plateaux)
Vegetation types (dominant types in bold) Waterberg Moist Mountain Bushveld; Mixed Bushveld; Mopane Bushveld
Altitude (m a.m.s.l.) 900 to 1700
MAP (mm) 300 to 700
Coefficient of variation (% of annual 25 to 34 precipitation)
22
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Rainfall concentration index 60 to >65
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 14 to 22
Mean daily max temp (°C) February 24 to 32
Mean daily max temp (°C) July 16 to 22
Mean daily min temp (°C) February 12 to 19
Mean daily min temp (°C) July 0 to 5
Median annual simulated runoff (mm) for <5 (limited); 10 to 100 quaternary catchment
Main Attributes Waterberg 6.02
Terrain Morphology: Broad division Plains; low relief (limited); Lowlands, Hills and Mountains; moderate and high relief
Terrain Morphology (Primary) Plains (limited)
Lowlands with hills
Vegetation types (dominant types in bold) Mixed Bushveld; Waterberg Moist Mountain Bushveld
Altitude (m a.m.s.l.) 900 to 1700
MAP (mm) 400 to 600
Coefficient of variation (% of annual 20 to 34 precipitation)
Rainfall concentration index 60 to >65
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 16 to 20
Mean daily max temp (°C) February 24 to 30
Mean daily max temp (°C) July 16 to 22
Mean daily min temp (°C) February 14 to 17
Mean daily min temp (°C) July 2 to 3
Median annual simulated runoff (mm) for 20 to 60 quaternary catchment
23
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 7: WESTERN BANKENVELD
Table 7: Main attributes of the Western Bankenveld Ecoregion.
Main Attributes Western Bankenveld
Terrain Morphology: Broad division Plains; Low Relief; (dominant types in bold) (Primary) Plains; Moderate Relief;
Lowlands; Hills and Mountains; Moderate and High Relief;
Open Hills; Lowlands; Mountains; Moderate to High Relief;
Closed Hills; Mountains; Moderate and High Relief;
Vegetation types (dominant types in bold) Waterberg Moist Mountain Bushveld; Mixed Bushveld; (Primary) Kalahari Plains Thorn Bushveld (limited); Clay Thorn Bushveld; (limited)
Rocky Highveld Grassland; Dry Clay Highveld Grassland; (limited)
Altitude (m a.m.s.l) ((Modifying) 900-1700
MAP (mm) (modifying) 400 to 700
Coefficient of Variation (% of annual 20 to 35 precipitation)
Rainfall concentration index 60 to >65
Rainfall seasonality Early to mid summer
Mean annual temp. (°C) 14 to 22
Mean daily max. temp. (°C): February 24 to 32
Mean daily max. temp. (°C): July 14 to 24
Mean daily min. temp. (°C): February 12 to 20
Mean daily min temp. (°C): July 0 to 6
Median annual simulated runoff (mm) for 20 to 80, 80 to 100 (limited) quaternary catchment
Main Attributes Western Bankenveld 7.01
Terrain Morphology: Broad division Plains; low relief; Lowlands, Hills and Mountains; moderate and high relief
Terrain Morphology (Primary) Plains
Lowlands with parallel hills
24
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Vegetation types (dominant types in bold) Mixed Bushveld; Kalahari Plains Thorn Bushveld
Altitude (m a.m.s.l.) 900 to 1300
MAP (mm) 400 to 600
Coefficient of variation (% of annual 25 to 34 precipitation)
Rainfall concentration index 60 to >65
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 18 to 22
Mean daily max temp (°C) February 28 to 32
Mean daily max temp (°C) July 18 to 22
Mean daily min temp (°C) February 16 to 19
Mean daily min temp (°C) July 0 to 3
Median annual simulated runoff (mm) for 20 to 60 quaternary catchment
Main Attributes Western Bankenveld 7.02
Terrain Morphology: Broad division Plains; moderate relief
Terrain Morphology (Primary) Moderately undulating plains
Vegetation types (dominant types in bold) Waterberg Moist Mountain Bushveld
Altitude (m a.m.s.l.) 1100 to 1500
MAP (mm) 400 to 700
Coefficient of variation (% of annual 25 to 29 precipitation)
Rainfall concentration index 60 to >65
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 14 to 20
Mean daily max temp (°C) February 24 to 28
Mean daily max temp (°C) July 16 to 22
Mean daily min temp (°C) February 14 to 17
Mean daily min temp (°C) July 2 to 5
Median annual simulated runoff (mm) for 60 to 100 quaternary catchment
Main Attributes Western Bankenveld 7.03
25
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief
Terrain Morphology Low Mountains
Vegetation types (dominant types in bold) Waterberg Moist Mountain Bushveld; Mixed Bushveld
Altitude (m a.m.s.l.) 900 to 1700
MAP (mm) 400 to 700
Coefficient of variation (% of annual 20 to 29 precipitation)
Rainfall concentration index 60 to >65
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 16 to 20
Mean daily max temp (°C) February 24 to 30
Mean daily max temp (°C) July 16 to 22
Mean daily min temp (°C) February 14 to 19
Mean daily min temp (°C) July 2 to 5
Median annual simulated runoff (mm) for 20 to 80 quaternary catchment
Main Attributes Western Bankenveld 7.04
Terrain Morphology: Broad division Open Hills, Lowlands, Mountains; moderate to high relief
Terrain Morphology (Primary) Hills and lowlands
Vegetation types (dominant types in bold) Mixed Bushveld, Clay Thorn Bushveld
Rocky Highveld Grassland
Altitude (m a.m.s.l.) 900 to 1700
MAP (mm) 400 to 700
Coefficient of variation (% of annual 25 to 34 precipitation)
Rainfall concentration index 60 to 64
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 16 to 20
Mean daily max temp (°C) February 26 to 32
Mean daily max temp (°C) July 16 to 22
Mean daily min temp (°C) February 14 to 17
Mean daily min temp (°C) July 0 to 3
26
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Median annual simulated runoff (mm) for 20 to 100 quaternary catchment
Main Attributes Western Bankenveld 7.05
Terrain Morphology: Broad division Lowlands, Hills and Mountains; moderate and high relief
Terrain Morphology (Primary) Lowlands with parallel hills
Vegetation types (dominant types in bold) Clay Thorn Bushveld, Mixed Bushveld
Rocky Highveld Grassland, Dry Clay Highveld Grassland
Altitude (m a.m.s.l.) 900 to 1700
MAP (mm) 400 to 700
Coefficient of variation (% of annual 25 to 29 precipitation)
Rainfall concentration index 60 to 64
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 16 to 20
Mean daily max temp (°C) February 24 to 30
Mean daily max temp (°C) July 16 to 22
Mean daily min temp (°C) February 14 to 17
Mean daily min temp (°C) July 0 to 3
Median annual simulated runoff (mm) for 20 to 80 quaternary catchment
Main Attributes Western Bankenveld 7.06
Terrain Morphology: Broad division Open Hills, Lowlands, Mountains; moderate to high relief
Terrain Morphology (Primary) Undulating hills and lowlands
Vegetation types (dominant types in bold) Rocky Highveld Grassland; Dry Clay Highveld Grassland (limited)
Altitude (m a.m.s.l.) 1100 to 1700
MAP (mm) 500 to 700
Coefficient of variation (% of annual 25 to 29 precipitation)
Rainfall concentration index 60 to 64
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 14 to 18
Mean daily max temp (°C) February 24 to 28
27
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean daily max temp (°C) July 14 to 20
Mean daily min temp (°C) February 12 to 15
Mean daily min temp (°C) July 0 to 3
Median annual simulated runoff (mm) for 20 to 60; 60 to 80 (limited) quaternary catchment
28
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 8: BUSHVELD BASIN
Table 8: Main attributes of the Bushveld Basin Ecoregion.
Main Attributes Bushveld Basin
Terrain Morphology: Broad division (dominant Plains; Low Relief; types in bold) (Primary) Plains; Moderate Relief;
Lowlands; Hills and Mountains: Moderate and High Relief;
Open Hills; Lowlands; Mountains: Moderate to High Relief;
Closed Hills; Mountains: Moderate and High Relief (limited)
Vegetation types (dominant types in bold) Mixed Bushveld; Clay Thorn Bushveld; Waterberg Moist (Primary) Mountain Bushveld (limited)
Altitude (m a.m.s.l) (Secondary) 700-1700 (1700-1900 very limited)
MAP (mm) (modifying) 400 to 600
Coefficient of Variation (% of annual 25 to 35 precipitation)
Rainfall concentration index 55 to >65
Rainfall seasonality Early to mid summer
Mean annual temp. (°C) 14 to 22
Mean daily max. temp. (°C): February 22 to 32
Mean daily max. temp. (°C): July 14 to 24
Mean daily min. temp. (°C): February 12 to 20
Mean daily min temp. (°C): July 0 to 6
Median annual simulated runoff (mm) for 20 to 100 quaternary catchment
Main Attributes Bushveld Basin 8.01
Terrain Morphology: Broad division Plains; low relief
Terrain Morphology (Primary) Plains
Vegetation types (dominant types in bold) Clay Thorn Bushveld; Mixed Bushveld;Waterberg Moist Mountain Bushveld (limited)
Altitude (m a.m.s.l.) 700 to 1300
MAP (mm) 400 to 600
Coefficient of variation (% of annual 25 to 34
29
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008 precipitation)
Rainfall concentration index 60 to >65
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 18 to 22
Mean daily max temp (°C) February 26 to 30
Mean daily max temp (°C) July 18 to 22
Mean daily min temp (°C) February 16 to 19
Mean daily min temp (°C) July 2 to 5
Median annual simulated runoff (mm) for 20 to 60; 60 to 100 (limited) quaternary catchment
Main Attributes Bushveld Basin 8.02
Terrain Morphology: Broad division Lowlands, Hills and Mountains; moderate and high relief
Terrain Morphology Lowlands with hills
Vegetation types (dominant types in bold) Mixed Bushveld
Altitude (m a.m.s.l.) 700 to 1500
MAP (mm) 400 to 600
Coefficient of variation (% of annual 25 to 34 precipitation)
Rainfall concentration index 60 to 64
Rainfall seasonality Early summer
Mean annual temp (°C) 16 to 22
Mean daily max temp (°C) February 24 to 30
Mean daily max temp (°C) July 18 to 22
Mean daily min temp (°C) February 14 to 19
Mean daily min temp (°C) July 2 to 5
Median annual simulated runoff (mm) for 40 to 80 quaternary catchment
Main Attributes Bushveld Basin 8.03
Terrain Morphology: Broad division Plains; moderate relief
Terrain Morphology (Primary) Strongly undulating plains
Vegetation types (dominant types in bold) Mixed Bushveld
Altitude (m a.m.s.l.) 700 to 1700 (1700 to 1900 limited)
30
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
MAP (mm) 400 to 600
Coefficient of variation (% of annual 25 to 34 precipitation)
Rainfall concentration index 55 to 64
Main Attributes Bushveld Basin 8.03
Rainfall seasonality Early summer
Mean annual temp (°C) 14 to 22
Mean daily max temp (°C) February 22 to 30
Mean daily max temp (°C) July 14 to 22
Mean daily min temp (°C) February 12 to 19
Mean daily min temp (°C) July 2 to 5
Median annual simulated runoff (mm) for 20 tot 80 quaternary catchment
Main Attributes Bushveld Basin 8.04
Terrain Morphology: Broad division Open Hills, Lowlands, Mountains; moderate and high relief
Terrain Morphology (Primary) Hills and lowlands
Vegetation types (dominant types in bold) Mixed Bushveld
Altitude (m a.m.s.l.) 700 to 1300
MAP (mm) 400 to 600
Coefficient of variation (% of annual 25 to 34 precipitation)
Rainfall concentration index 60 to 64
Rainfall seasonality Early summer
Mean annual temp (°C) 18 to 20
Mean daily max temp (°C) February 26 to 30
Mean daily max temp (°C) July 18 to 22
Mean daily min temp (°C) February 14 to 19
Mean daily min temp (°C) July 2 to 5
Median annual simulated runoff (mm) for 20 to 80 quaternary catchment
Main Attributes Bushveld Basin 8.05
Terrain Morphology: Broad division Plains; low relief;
31
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Closed Hills, mountains; moderate and high relief (limited)
Terrain Morphology (Primary) Slightly undulating plains; Hills (limited)
Vegetation types (dominant types in bold) Mixed Bushveld, Clay Thorn Bushveld; Waterberg Moist Mountain Bushveld (limited)
Altitude (m a.m.s.l.) 900 to 1500
MAP (mm) 400 to 700
Coefficient of variation (% of annual 25 to 29 precipitation)
Rainfall concentration index 60 to >65
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 16 to 20
Mean daily max temp (°C) February 26 to 32
Mean daily max temp (°C) July 18 to 22
Mean daily min temp (°C) February 14 to 17
Mean daily min temp (°C) July 2 to 3
Median annual simulated runoff (mm) for 20 to 40 (limited); 40 to 100 quaternary catchment
Main Attributes Bushveld Basin 8.06
Terrain Morphology: Broad division Plains; low relief;
Closed Hills, mountains; moderate and high relief
Terrain Morphology Slightly undulating plains; Hills
Vegetation types (dominant types in bold) Clay Thorn Bushveld; Mixed Bushveld
Altitude (m a.m.s.l.) 900 to 1300
MAP (mm) 400 to 600
Coefficient of variation (% of annual 25 to 34 precipitation)
Rainfall concentration index 60 to >65
Rainfall seasonality Mid summer
Mean annual temp (°C) 18 to 22
Mean daily max temp (°C) February 28 to 32
Mean daily max temp (°C) July 18 to 22
Mean daily min temp (°C) February 16 to 19
32
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean daily min temp (°C) July 0 to 3
Median annual simulated runoff (mm) for 20 to 100 quaternary catchment
33
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 9: EASTERN BANKENVELD
Table 9: Main attributes of the Eastern Bankenveld Ecoregion.
Main Attributes Eastern Bankenveld
Terrain Morphology: Broad division Plains; Low Relief; (very limited) (dominant types in bold) (Primary) Plains; Moderate Relief;
Lowlands; Hills and Mountains; Moderate and High Relief; (limited)
Open Hills; Lowlands; Mountains; Moderate to High Relief; (limited)
Closed Hills; Mountains; Moderate and High Relief;
Vegetation types (dominant types in bold) Sour Lowveld Bushveld; Mixed Bushveld; Clay Thorn (Primary) Bushveld (limited);
Rocky Highveld Grassland; Moist Sandy Highveld Grassland; North Eastern Mountain Grassland;
Patches AfroMontane Forest.
Altitude (m a.m.s.l) (Modifying) 500-2300
MAP (mm) (modify) 300 to 1000
Coefficient of Variation (% of annual <20 to 34 precipitation)
Rainfall concentration index 55 to >65
Rainfall seasonality Early to mid summer
Mean annual temp. (°C) 10 to 22
Mean daily max. temp. (°C): February 18 to 30
Mean daily max. temp. (°C): July 12 to 24
Mean daily min. temp. (°C): February 8 to 20
Mean daily min temp. (°C): July 0 to 8
Median annual simulated runoff (mm) for 20 to 150; 200 to >250 quaternary catchment
Main Attributes Eastern Bankenveld 9.01
Terrain Morphology: Broad division Lowlands, Hills and Mountains; moderate and high relief;
Closed Hills, mountains; moderate and high relief
Terrain Morphology Lowlands with mountains
34
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Low mountains
Vegetation types (dominant types in bold) Mixed Bushveld; Clay Thorn Bushveld (Primary)
Altitude (m a.m.s.l.) 1100 to 1700
MAP (mm) 300 to 600
Coefficient of variation (% of annual 25 to 34 precipitation)
Rainfall concentration index 60 to >65
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 16 to 20
Mean daily max temp (°C) February 24 to 28
Mean daily max temp (°C) July 16 to 20
Mean daily min temp (°C) February 12 to 17
Mean daily min temp (°C) July 2 to 5
Median annual simulated runoff (mm) for 20 to 40 (limited); 40 to 80 quaternary catchment
Main Attributes Eastern Bankenveld 9.02
Terrain Morphology: Broad division Plains; low relief (limited);
Open Hills, Lowlands, Mountains; moderate to high relief;
Closed Hills, Mountains; moderate and high relief
Terrain Morphology Plains (limited),
Parallel hills and lowlands;
Low mountains
Vegetation types (dominant types in bold) Mixed Bushveld (Primary) Patches Afromontane Forest
North Eastern Mountain Grassland
Altitude (m a.m.s.l.) 700 to 1700
MAP (mm) 400 to 1000
Coefficient of variation (% of annual <20 to 34 precipitation)
Rainfall concentration index 55 to >65
Rainfall seasonality Early to mid summer
35
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean annual temp (°C) 10 to 22
Mean daily max temp (°C) February 18 to 30
Mean daily max temp (°C) July 12 to 22
Main Attributes Eastern Bankenveld 9.02
Mean daily min temp (°C) February 8 to 17
Mean daily min temp (°C) July 0 to 7
Median annual simulated runoff (mm) for 20 to 150; 200 to >250 quaternary catchment
Main Attributes Eastern Bankenveld 9.03
Terrain Morphology: Broad division Open Hills, Lowlands, Mountains; moderate to high relief; Closed Hills, Mountains; moderate and high relief
Terrain Morphology Hills and Lowlands; Parallel hills and lowlands;
Low mountains
Vegetation types (dominant types in bold) Mixed Bushveld, Clay Thorn Bushveld (Primary)
Altitude (m a.m.s.l.) 500 to 2300
MAP (mm) 400 to 700
Coefficient of variation (% of annual 20 o 34 precipitation)
Rainfall concentration index 55 to 64
Rainfall seasonality Early summer
Mean annual temp (°C) 14 to 22
Mean daily max temp (°C) February 20 to 30
Mean daily max temp (°C) July 16 to 2
Mean daily min temp (°C) February 12 to 19
Mean daily min temp (°C) July 2 to 7
Median annual simulated runoff (mm) for 20 to 150 quaternary catchment
Main Attributes Eastern Bankenveld 9.04
Terrain Morphology: Broad division Plains; moderate relief
Terrain Morphology (Primary) Strongly undulating plains
Vegetation types (dominant types in bold) North Eastern Mountain Grassland
Sour Lowveld Bushveld (limited)
36
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Altitude (m a.m.s.l.) 900 to 2100
MAP (mm) 500 to700
Coefficient of variation (% of annual 20 to 29 precipitation)
Rainfall concentration index 55 to 60
Rainfall seasonality Early summer
Mean annual temp (°C) 16 to 20
Mean daily max temp (°C) February 22 to 26
Mean daily max temp (°C) July 16 to 20
Mean daily min temp (°C) February 12 to 15
Mean daily min temp (°C) July 2 to 5
Median annual simulated runoff (mm) for 60 to 150 quaternary catchment
Main Attributes Eastern Bankenveld 9.05
Terrain Morphology: Broad division Plains, moderate relief;
Closed Hills, Mountains; moderate and high relief
Terrain Morphology Strongly undulating plains
Low mountains
Vegetation types (dominant types in bold) Moist Sandy Highveld Grassland (Primary)
Altitude (m a.m.s.l.) 900 to 1900
MAP (mm) 500 to 700
Coefficient of variation (% of annual 25 to 29 precipitation)
Rainfall concentration index 60 to 64
Rainfall seasonality Early summer
Mean annual temp (°C) 14 to 20
Mean daily max temp (°C) February 22 to 28
Mean daily max temp (°C) July 14 to 20
Mean daily min temp (°C) February 12 to 17
Mean daily min temp (°C) July 2 to 5
Median annual simulated runoff (mm) for 20 to 40; 40 to 60 (limited); 60 to 80 quaternary catchment
37
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes Eastern Bankenveld 9.06
Terrain Morphology: Broad division Plains, moderate relief; Closed Hills, Mountains; moderate and high relief
Terrain Morphology (Primary) Strongly undulating plains
Low mountains
Vegetation types (dominant types in bold) North Eastern Mountain Grassland; Rocky Highveld (Primary) Grassland
Main Attributes Eastern Bankenveld 9.06
Altitude (m a.m.s.l.) 1100 to 2300
MAP (mm) 500 to 700
Coefficient of variation (% of annual 25 to 29 precipitation)
Rainfall concentration index 60 to 64
Rainfall seasonality Early summer
Mean annual temp (°C) 12 t 14
Mean daily max temp (°C) February 18 to 28
Mean daily max temp (°C) July 14 to 18
Mean daily min temp (°C) February 10 to 15
Mean daily min temp (°C) July 2 to 5
Median annual simulated runoff (mm) for 20 to 80 quaternary catchment
38
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 10: NORTHERN ESCARPMENT MOUNTAINS
Table 10: Main attributes of the Northern Escarpment Mountains Ecoregion.
Main Attributes Northern Escarpment Mountains
Terrain Morphology: Broad division (dominant Plains; Moderate Relief; types in bold) (Primary) Closed Hills; Mountains; Moderate and High Relief
Vegetation types (dominant types in bold) North Eastern Mountain Grassland; (Primary) Sour Lowveld Bushveld; Mixed Bushveld (limited)
Patches of Afromontane Forest
Altitude (m a.m.s.l) (Secondary) 500-900 (limited) 900-2300
MAP (mm) (modifying) 500 to 1000
Coefficient of Variation (% of annual precipitation) <20 to 35
Rainfall concentration index 50 to 65
Rainfall seasonality Early to mid summer
Mean annual temp. (°C) 10 to 22
Mean daily max. temp. (°C): February 16 to 30
Mean daily max. temp. (°C): July 12 to 24
Mean daily min. temp. (°C): February 8 to 20
Mean daily min temp. (°C): July 0 to 8
Median annual simulated runoff (mm) for 40 to >250 quaternary catchment
Main Attributes Northern Escarpment Mountains 10.01
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief
Terrain Morphology High mountains
Vegetation types (dominant types in bold) Patches Afromontane Forest (Primary) North Eastern Mountain Grassland
Sour Lowveld Bushveld
Altitude (m a.m.s.l.) 500 to 2100
MAP (mm) 500 to 1000
Coefficient of variation (% of annual precipitation) <20 to 29
39
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Rainfall concentration index 55 to 64
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 10 to 22
Mean daily max temp (°C) February 16 to 30
Mean daily max temp (°C) July 14 to 24
Mean daily min temp (°C) February 8 to 19
Mean daily min temp (°C) July 0 to 7
Median annual simulated runoff (mm) for 40 to 150; 200 to >250 quaternary catchment
Main Attributes Northern Escarpment Mountains 10.02
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief
Terrain Morphology High mountains
Vegetation types (dominant types in bold) Patches Afromontane Forest
Sour Lowveld Bushveld
Altitude (m a.m.s.l.) 700 to 2300
MAP (mm) 600 to 1000
Coefficient of variation (% of annual precipitation) <20 to 29
Rainfall concentration index 55 to 64
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 12 to 20
Mean daily max temp (°C) February 20 to 28
Mean daily max temp (°C) July 12 to 22
Mean daily min temp (°C) February 10 to 17
Main Attributes Northern Escarpment Mountains 10.02
Mean daily min temp (°C) July 0 to 7
Median annual simulated runoff (mm) for 60 to >250 quaternary catchment
Main Attributes Northern Escarpment Mountains 10.03
Terrain Morphology: Broad division Plains; moderate relief; Closed Hills, Mountains; moderate and high relief
Terrain Morphology Strongly undulating plains
High mountains
40
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Vegetation types (dominant types in bold) Patches Afromontane Forest
North Eastern Mountain Grassland
Altitude (m a.m.s.l.) 700 to 1900
MAP (mm) 600 to 1000
Coefficient of variation (% of annual precipitation) <20 to 29
Rainfall concentration index 50 to 64
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 12 to 20
Mean daily max temp (°C) February 20 to 30
Mean daily max temp (°C) July 12 to 22
Mean daily min temp (°C) February 12 to 17
Mean daily min temp (°C) July 0 to 7
Median annual simulated runoff (mm) for 40 to 80 (limited); 80 to >250 quaternary catchment
41
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 11: HIGHVELD
Table 11: Main attributes of the Highveld Ecoregion.
Main Attributes Highveld
Terrain Morphology: Broad division (dominant Plains; Low Relief; types in bold) (Primary) Plains; Moderate Relief;
Lowlands; Hills and Mountains; Moderate and High Relief;
Open Hills; Lowlands; Mountains; Moderate to high Relief
Closed Hills. Mountains; Moderate and High Relief
Vegetation types (dominant types in bold) Mixed Bushveld (limited); (Primary) Rocky Highveld Grassland; Dry Sandy Highveld Grassland; Dry Clay Highveld Grassland; Moist Cool Highveld Grassland; Moist Cold Highveld Grassland; North Eastern Mountain Grassland; Moist Sandy Highveld Grassland; Wet Cold Highveld Grassland (limited); Moist Clay Highveld Grassland;
Patches Afromontane Forest (very limited)
Altitude (m a.m.s.l) (secondary) 1100-2100, 2100-2300 (very limited)
MAP (mm) (modifying) 400 to 1000
Coefficient of Variation (% of annual <20 to 35 precipitation)
Rainfall concentration index 45 to 65
Rainfall seasonality Early to late summer
Mean annual temp. (°C) 12 to 20
Mean daily max. temp. (°C): February 20 to 32
Mean daily max. temp. (°C): July 14 to 22
Mean daily min. temp. (°C): February 10 to 18
Mean daily min temp. (°C): July -2 to 4
Median annual simulated runoff (mm) for 5 to >250 quaternary catchment
Main Attributes Highveld 11.01
42
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Terrain Morphology: Broad division Plains; low relief; Plains; moderate relief;
Open Hills, Lowlands, Mountains; moderate to high relief;
Closed Hills, Mountains; moderate and high relief
Terrain Morphology Plains; Plains and pans; Slightly undulating plains
Slightly irregular undulating plains; few hills; Moderately undulating plains and pans; Strongly undulating plains
Hills and lowlands
Hills; Parallel hills
Vegetation types (dominant types in bold) Rocky Highveld Grassland (Primary) Mixed Bushveld
Altitude (m a.m.s.l.) 1300 to 1900
MAP (mm) 500 to 700
Coefficient of variation (% of annual 20 to 34 precipitation)
Main Attributes Highveld 11.01
Rainfall concentration index 55 to 64
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 14 to 18
Mean daily max temp (°C) February 24 to 30
Mean daily max temp (°C) July 14 to 20
Mean daily min temp (°C) February 12 to 17
Mean daily min temp (°C) July 0 to 3
Median annual simulated runoff (mm) for 20 to 60 quaternary catchment
Main Attributes Highveld 11.02
Terrain Morphology: Broad division Plains; low relief; Plains; moderate relief;
Lowlands, Hills and Mountains; moderate and high relief;
Closed Hills, Mountains; moderate and high relief
43
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Terrain Morphology Plains and pans; Slightly undulating plains, Slightly undulating plains and pans; Slightly irregular undulating plains, few hills; Moderately undulating plains; Moderately undulating plains and pans; Strongly undulating plains
Strongly undulating irregular land
Low mountains
Vegetation types (dominant types in bold) Moist Sandy Highveld Grassland; North Easter Mountain (Primary) Grassland (limited)
Altitude (m a.m.s.l.) 1300 to 1900
MAP (mm) 500 to 800
Coefficient of variation (% of annual 20 to 29 precipitation)
Rainfall concentration index 55 to 64
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 12 to 18
Mean daily max temp (°C) February 20 to 26
Mean daily max temp (°C) July 12 to 20
Mean daily min temp (°C) February 10 to 15
Mean daily min temp (°C) July 0 to 3
Median annual simulated runoff (mm) for 20 to 80; 80 to 100 (limited); 100 to 150; 150 to 200 quaternary catchment (limited)
Main Attributes Highveld 11.03
Terrain Morphology: Broad division Plains; low relief; Plains; moderate relief;
Lowlands, Hills and Mountains; moderate and high relief; Open Hills, Lowlands, mountains; moderate to high relief; Closed Hills, Mountains; moderate and high relief
Terrain Morphology Plains and pans; Slightly undulating plains; Slightly undulating plains and pans; Slightly irregular undulating plains, few hills; Moderately undulating plains and pans
Lowlands with hills; Strongly undulating irregular land
Hills and lowlands
Low mountains
Vegetation types (dominant types in bold) Moist Cool Highveld Grassland; Moist Cold Highveld (Primary) Grassland; Wet Cold Highveld Grassland
Patches Afromontane Forest
44
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Altitude (m a.m.s.l.) 1300 to 2100
MAP (mm) 400 to 800
Coefficient of variation (% of annual 20 to 34 precipitation)
Rainfall concentration index 45 to 64
Rainfall seasonality Early to late summer
Mean annual temp (°C) 12 to 18
Mean daily max temp (°C) February 22 to 28
Mean daily max temp (°C) July 12 to 18
Mean daily min temp (°C) February 10 to 15
Mean daily min temp (°C) July -2 to 1
Median annual simulated runoff (mm) for 5 to 10 (limited); 10 to 150 quaternary catchment
Main Attributes Highveld 11.04
Terrain Morphology: Broad division Plains; low relief; Plains; moderate relief;
Open Hills, Lowlands, Mountains; moderate to high relief
Terrain Morphology Slightly undulating plains; Slightly undulating plains and pans
Moderately undulating plains; Strongly undulating plains
Undulating hills and lowlands
Main Attributes Highveld 11.04
Vegetation types (dominant types in bold) North Eastern Mountain Grassland (Primary)
Altitude (m a.m.s.l.) 900 to 1900
MAP (mm) 600 to 1000
Coefficient of variation (% of annual <20 to 29 precipitation)
Rainfall concentration index 50 to 60
Rainfall seasonality Early summer
Mean annual temp (°C) 12 to 18
Mean daily max temp (°C) February 20 to 28
Mean daily max temp (°C) July 14 to 20
45
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean daily min temp (°C) February 12 to 15
Mean daily min temp (°C) July 0 to 3
Median annual simulated runoff (mm) for 40 to 100 (limited); 100 to >150 quaternary catchment
Main Attributes Highveld 11.05
Terrain Morphology: Broad division Plains; low relief; Plains; moderate relief;
Lowlands, Hills and Mountains; moderate and high relief; Open Hills, Lowlands, Mountains; moderate to high relief
Terrain Morphology Plains and pans; Slightly undulating plains
Slightly irregular undulating plains, few hills; Strongly undulating plains
Strongly undulating irregular land
Hills and lowlands
Vegetation types (dominant types in bold) Moist Sandy Highveld Grassland, Moist Clay Highveld (Primary) Grassland
Altitude (m a.m.s.l.) 1300 to 1900
MAP (mm) 500 to 800
Coefficient of variation (% of annual 20 to 29 precipitation)
Rainfall concentration index 55 to 64
Rainfall seasonality Early summer
Mean annual temp (°C) 14 to 16
Mean daily max temp (°C) February 22 to 26
Mean daily max temp (°C) July 14 to 18
Mean daily min temp (°C) February 12 to 13
Mean daily min temp (°C) July 0 to 1
Median annual simulated runoff (mm) for 20 to 150 quaternary catchment
Main Attributes Highveld 11.06
Terrain Morphology: Broad division Plains; low relief; Plains; moderate relief;
Lowlands, Hills and Mountians; moderate and high relief (limited); Closed Hills, Mountains; moderate and high relief (limited)
46
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Terrain Morphology Plains and pans; Slightly undulating plains; Slightly irregular undulating plains, few hills
Lowlands with hills (limited)
Hills (limited)
Vegetation types (dominant types in bold) Dry Clay Highveld Grassland; Dry Sandy Highveld (Primary) Grassland
Altitude (m a.m.s.l.) 1100 to 1700
MAP (mm) 400 to 500
Coefficient of variation (% of annual 25 to 34 precipitation)
Rainfall concentration index 50 to 64
Rainfall seasonality Mid to late summer
Mean annual temp (°C) 14 to 20
Mean daily max temp (°C) February 26 to 32
Mean daily max temp (°C) July 14 to 20
Mean daily min temp (°C) February 14 to 17
Mean daily min temp (°C) July 0 to 1
Median annual simulated runoff (mm) for 5 to 60; 60 to 80 (limited) quaternary catchment
Main Attributes Highveld 11.07
Terrain Morphology: Broad division Plains; low relief
Terrain Morphology Plains; Plains and pans
Vegetation types (dominant types in bold) Mixed Bushveld (Primary)
Altitude (m a.m.s.l.) 1300 to 1500
Main Attributes Highveld 11.07
MAP (mm) 400 to 500
Coefficient of variation (% of annual 25 to 34 precipitation)
Rainfall concentration index 60 to 64
Rainfall seasonality Mid summer
Mean annual temp (°C) 16 to 20
Mean daily max temp (°C) February 28 to 30
47
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean daily max temp (°C) July 16 to 20
Mean daily min temp (°C) February 16 to 17
Mean daily min temp (°C) July 0 to 1
Median annual simulated runoff (mm) for 10 to 60 quaternary catchment
Main Attributes Highveld 11.08
Terrain Morphology: Broad division Plains; low relief (limited); Plains; moderate relief;
Lowlands, Hills and Mountains; moderate and high relief
Terrain Morphology Slight undulating plains and pans (limited);
Slight irregular undulating plains, few hills
Lowlands with hills
Vegetation types (dominant types in bold) Dry Sandy Highveld Grassland, Moist Cold Highveld (Primary) Grassland
Altitude (m a.m.s.l.) 1300 to 1700
MAP (mm) 400 to 500
Coefficient of variation (% of annual 25 to 34 precipitation)
Rainfall concentration index 45 to 60
Rainfall seasonality Mid to late summer
Mean annual temp (°C) 14 to 18
Mean daily max temp (°C) February 24 to 28
Mean daily max temp (°C) July 12 to 18
Mean daily min temp (°C) February 12 to 15
Mean daily min temp (°C) July -2 to 1
Median annual simulated runoff (mm) for 5 to 10 (limited); 10 to 80 quaternary catchment
48
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 12: LEBOMBO UPLANDS
Table 12: Main attributes of the Lebombo Uplands Ecoregion.
Main Attributes Lebombo Uplands
Terrain Morphology: Broad division dominant Closed Hills; Mountains; Moderate and High Relief types in bold) (Primary)
Vegetation types (dominant types in bold) Sweet Lowveld Bushveld; Lebombo Arid Mountain (Secondary) Bushveld
Altitude (m a.m.s.l) (primary) 0-500
MAP (mm) (modifying) 400 to 1000
Coefficient of Variation (% of annual precipitation) <20 to 35
Rainfall concentration index 45 to >65
Rainfall seasonality Early to mid summer
Mean annual temp. (°C) 18 to >22
Mean daily max. temp. (°C): February 26 to 32
Mean daily max. temp. (°C): July 20 to >24
Mean daily min. temp. (°C): February 18 to >20
Mean daily min temp. (°C): July 6 to >10
Median annual simulated runoff (mm) for 20 to 150 quaternary catchment
Main Attributes Lebombo Uplands 12.01
Terrain Morphology: Broad division Closed hills, mountains; moderate and high relief
Terrain Morphology (Primary) Hills; Low Mountains
Vegetation types (dominant types in bold) Lebombo Arid Mountain Bushveld; Sweet Lowveld (Primary) Bushveld
Altitude (m a.m.s.l.) 100 to 700 (300-900)
MAP (mm) 400 to 800
Coefficient of variation (% of annual precipitation) <20 to 35
Rainfall concentration index 45 to >65
Rainfall seasonality Early to mid summer
Mean annual temp (°C) 18 to >22
Mean daily max temp (°C) February 26 to 32
49
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean daily max temp (°C) July 22 to >24
Main Attributes Lebombo Uplands 12.01
Mean daily min temp (°C) February 18 to >20
Mean daily min temp (°C) July 8 to >10
Median annual simulated runoff (mm) for 40 to 150 quaternary catchment
50
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 13: NATAL COASTAL PLAIN
Table 13: Main attributes of the Natal Coastal Plain Ecoregion.
Main Attributes Natal Coastal Plain
Terrain Morphology: Broad division (dominant types in Plains: Low Relief bold) (Primary)
Vegetation types (dominant types in bold) (Secondary) Coastal Bushveld/Grassland; Subhumid Lowveld Bushveld; Natal Lowveld Bushveld;
Patches Sand Forest.
Valley Thicket (limited)
Altitude (m a.m.s.l) (secondary) 0-300
MAP (mm) (modifying) 500 to 600 (limited), 600 to 1000
Coefficient of Variation (% of annual precipitation) <20 to 30
Rainfall concentration index 15 to 50
Rainfall seasonality Mid to late summer
Mean annual temp. (°C) 20 to >22
Mean daily max. temp. (°C): February 26 to 32
Mean daily max. temp. (°C): July 20 to >24
Mean daily min. temp. (°C): February >20
Mean daily min temp. (°C): July 8 to >10
Median annual simulated runoff (mm) for quaternary 40 to 80; 100 to >250 catchment
Main Attributes Natal Coastal Plain 13.01
Terrain Morphology: Broad division Plains, low relief
Terrain Morphology Plains
Vegetation types (dominant types in bold) (Primary) Coastal grassland, Natal Lowland Bushveld, Sand Forest
Altitude (m a.m.s.l.) 0 - 200
MAP (mm) 500 - 700
Coefficient of variation (% of annual precipitation) 25 - 30
Rainfall concentration index 30 - 50
Rainfall seasonality Late Summer, Mid Summer
51
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean annual temp (°C) 20 - > 22
Mean daily max temp (°C) February 28 - 30
Mean daily max temp (°C) July > 24
Mean daily min temp (°C) February > 20
Mean daily min temp (°C) July 8 - > 10
Median annual simulated runoff (mm) for quaternary 52 - 420 catchment
Main Attributes Natal Coastal Plain 13.02
Terrain Morphology: Broad division Plains, Low relief
Terrain Morphology Plains
Vegetation types (dominant types in bold) (Primary) Coastal bushveld/grassland, Sand Forest
Altitude (m a.m.s.l.) 0 - 100
MAP (mm) 600 - 800
Coefficient of variation (% of annual precipitation) <20 - 30
Rainfall concentration index 30 - 45
Rainfall seasonality Late Summer
Mean annual temp (°C) 20 - >22
Mean daily max temp (°C) February 28 - 30
Mean daily max temp (°C) July 22 - >24
Mean daily min temp (°C) February >20
Mean daily min temp (°C) July >10
Median annual simulated runoff (mm) for quaternary 52 - 140 catchment
Main Attributes Natal Coastal Plain 13.03
Terrain Morphology: Broad division Plains, low relief
Terrain Morphology Plains
Vegetation types (dominant types in bold) (Primary) Coastal Bushveld/Grassland, Sand Forest, Valley Thicket
Altitude (m a.m.s.l.) 0 - 300
MAP (mm) 600 - 1000
Main Attributes Natal Coastal Plain 13.03
Coefficient of variation (% of annual precipitation) <20 – 30
52
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Rainfall concentration index 30 – 50
Rainfall seasonality Late Summer, Mid Summer, All year
Mean annual temp (°C) 20 - >22
Mean daily max temp (°C) February 26 – 30
Mean daily max temp (°C) July 22 - >24
Mean daily min temp (°C) February >20
Mean daily min temp (°C) July >10
Median annual simulated runoff (mm) for quaternary 52 – 420 catchment
53
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 14: NORTH EASTERN UPLANDS
Table 14: Main attributes of the North Eastern Uplands Ecoregion.
Main Attributes North Eastern Uplands
Terrain Morphology: Broad division Plains; Moderate Relief (limited); (dominant types in bold) (Primary) Lowlands; Hills and Mountains; Moderate and High Relief;
Open Hills; Lowlands; Mountains; Moderate to High Relief;
Closed Hills; Mountains; Moderate and High Relief
Vegetation types (dominant types in bold) Natal Lowveld Bushveld (limited); Natal Central Bushveld; (Secondary) Coast Hinterland Bushveld; Coastal Bushveld/Grassland;
Valley Thicket;
Short Mistbelt Grassland; North Eastern Mountain Grassland; Moist Upland Grassland
Patches Afromontane Forest
Altitude (m a.m.s.l) (modifying) 0-100 (limited), 100-1500
MAP (mm) (modifying) 600 to 1000
Coefficient of Variation (% of annual <20 to 30 precipitation)
Rainfall concentration index 15 to 65
Rainfall seasonality Early to late summer
Mean annual temp. (°C) 14 to >22
Mean daily max. temp. (°C): February 20 to 30
Mean daily max. temp. (°C): July 16 to >24
Mean daily min. temp. (°C): February 12 to >20
Mean daily min temp. (°C): July 0 to >10
Median annual simulated runoff (mm) for 40 to 250; >250 (limited) quaternary catchment
Main Attributes North-Eastern Uplands 14.01
Terrain Morphology: Broad division Plains, Low relief
Terrain Morphology Irregular undulating lowlands with hills
Vegetation types (dominant types in bold) North-Eastern Mountain Grassland, Natal Lowland Bushveld (Primary)
54
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Altitude (m a.m.s.l.) 900 - 1500
MAP (mm) 700 - 800
Coefficient of variation (% of annual <20 - 25 precipitation)
Rainfall concentration index 60 - 65
Rainfall seasonality Early Summer
Mean annual temp (°C) 14 - 20
Mean daily max temp (°C) February 24 - 28
Mean daily max temp (°C) July 18 - 22
Mean daily min temp (°C) February 12 - 16
Mean daily min temp (°C) July 2 - 6
Median annual simulated runoff (mm) for 110 - 160 quaternary catchment
Main Attributes North-Eastern Uplands 14.02
Terrain Morphology: Broad division Plains, Low relief
Terrain Morphology Irregular undulating lowlands with hills
Vegetation types (dominant types in bold) Natal Coastal Bushveld, North-eastern Mountain Grassland, (Primary) Wet Cold Highveld Grassland, Moist Upland Grassland
Altitude (m a.m.s.l.) 700 - 1500
MAP (mm) 600 - 800
Coefficient of variation (% of annual 20 - 30 precipitation)
Rainfall concentration index 55 - 65
Rainfall seasonality Mid Summer, Early Summer
Main Attributes North-Eastern Uplands 14.02
Mean annual temp (°C) 16 - 18
Mean daily max temp (°C) February 24 - 28
Mean daily max temp (°C) July 18 - 22
Mean daily min temp (°C) February 12 - 16
Mean daily min temp (°C) July 2 - 6
Median annual simulated runoff (mm) for 40 - 210 quaternary catchment
Main Attributes North-Eastern Uplands 14.03
55
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Terrain Morphology: Broad division Closed hills, mountains; moderate and high relief. Plains; moderate relief. Open hills, lowlands; moderate to high relief.
Terrain Morphology Low mountains, Moderately undulating plains, Undulating plains and lowlands
Vegetation types (dominant types in bold) Natal Central Bushveld, North-eastern Mountain Grassland, (Primary) Afromontane Forest
Altitude (m a.m.s.l.) 100 - 1300
MAP (mm) 600 - 1000
Coefficient of variation (% of annual <20 - 35 precipitation)
Rainfall concentration index 30 - 50
Rainfall seasonality Mid Summer, Early Summer
Mean annual temp (°C) 16 - 22
Mean daily max temp (°C) February 24 - 30
Mean daily max temp (°C) July 18 - 24
Mean daily min temp (°C) February 14 - 20
Mean daily min temp (°C) July 2 - 10
Median annual simulated runoff (mm) for 95 - 215 quaternary catchment
Main Attributes North-Eastern Uplands 14.04
Terrain Morphology: Broad division Open hills, lowlands, mountains; moderate and high relief. Closed hills, lowlands, mountains; moderate and high relief.
Terrain Morphology Undulating Mountains, Low mountains, Highly dissected low undulating mountains, Undulating Hills.
Vegetation types (dominant types in bold) Natal Central Bushveld, Moist Upland Grassland. (Primary)
Altitude (m a.m.s.l.) 100 - 900
MAP (mm) 600 - 800
Coefficient of variation (% of annual 20 - 30 precipitation)
Rainfall concentration index 30 - 55
Rainfall seasonality Mid Summer, Early Summer
Mean annual temp (°C) 17 - 22
Mean daily max temp (°C) February 25 - 31
56
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean daily max temp (°C) July 18 - 24
Mean daily min temp (°C) February 16 - 20
Mean daily min temp (°C) July 5 - 11
Median annual simulated runoff (mm) for 640 -750 quaternary catchment
Main Attributes North-Eastern Uplands 14.05
Terrain Morphology: Broad division Closed Hills, mountains; moderate to high relief, Open Hills, Lowlands, Mountains; Moderate to High Relief
Terrain Morphology Highly dissected low undulating mountains, Undulating mountains
Vegetation types (dominant types in bold) Coast-Hinterland Bushveld, Coastal Bushveld/ Grassland (Primary)
Altitude (m a.m.s.l.) 0 - 1100
MAP (mm) 600 - 700
Coefficient of variation (% of annual <20 - 30 precipitation)
Rainfall concentration index 30 - 55
Rainfall seasonality Mid Summer, Early Summer, Late Summer
Mean annual temp (°C) 15 - 22
Mean daily max temp (°C) February 22 - 31
Mean daily max temp (°C) July 16 - 24
Mean daily min temp (°C) February 14 - 20
Mean daily min temp (°C) July 3 - 11
Median annual simulated runoff (mm) for 640 - 810 quaternary catchment
Main Attributes North-Eastern Uplands 14.06
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief, Open Hills, Lowlands, Mountains; Moderate to High Relief
Terrain Morphology Highly Dissected Low Undulating Mountains, Undulating Hills, Undulating Lowlands and Hills
Vegetation types (dominant types in bold) Valley Thicket (Primary)
57
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Altitude (m a.m.s.l.) 0 - 1300
MAP (mm) 700 -1000
Coefficient of variation (% of annual <20 - 25 precipitation)
Rainfall concentration index 30 - 45
Rainfall seasonality Mid Summer
Mean annual temp (°C) 19 - 22
Mean daily max temp (°C) February 27 - 31
Mean daily max temp (°C) July 20 - 24
Mean daily min temp (°C) February 16 - 20
Mean daily min temp (°C) July 7 - 11
Median annual simulated runoff (mm) for 750 - 810 quaternary catchment
Main Attributes North-Eastern Uplands 14.07
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief, Open Hills, Lowlands, Mountains; moderate to high relief
Terrain Morphology Mountains and Lowlands, Low Mountains
Vegetation types (dominant types in bold) Valley Thicket, Natal Central Bushveld, Moist Upland (Primary) Grassland, North-eastern Mountain Grassland
Altitude (m a.m.s.l.) 300 - 1300
MAP (mm) 600 - 700
Coefficient of variation (% of annual 20 - 30 precipitation)
Rainfall concentration index 50 - 60
Rainfall seasonality Mid Summer
Mean annual temp (°C) 14 - 16
Mean daily max temp (°C) February 19 - 31
Mean daily max temp (°C) July 13 - 22
Mean daily min temp (°C) February 10 - 15
Mean daily min temp (°C) July 0 - 5
Median annual simulated runoff (mm) for 750 - 910 quaternary catchment
Main Attributes North-Eastern Uplands 14.08
58
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Terrain Morphology: Broad division Open Hills, Lowlands, Mountains; moderate to high relief, Closed Hills, Mountains; moderate and high relief
Terrain Morphology Mountains and Lowlands, Low Mountains
Vegetation types (dominant types in bold) Natal Central Bushveld, Valley Thicket, Moist Upland (Primary) Grassland
Altitude (m a.m.s.l.) 1100 - 1500
MAP (mm) 600 - 700
Coefficient of variation (% of annual 20 - 30 precipitation)
Rainfall concentration index 55 - 60
Rainfall seasonality Early Summer, Mid Summer
Mean annual temp (°C) 14 - 16
Mean daily max temp (°C) February 19 - 25
Mean daily max temp (°C) July 13 - 19
Mean daily min temp (°C) February 10 - 14
Mean daily min temp (°C) July 0 - 4
Median annual simulated runoff (mm) for 680 - 810 quaternary catchment
59
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 15: EASTERN ESCARPMENT MOUNTAINS
Table 15: Main attributes of the Eastern Escarpment Mountains Ecoregion.
Main Attributes Eastern Escarpment Mountains
Terrain Morphology: Broad division (dominant Plains; Moderate Relief (limited); types in bold) (Primary) Lowlands, Hills and Mountains; Moderate and High Relief
Open Hills; Lowlands; Mountains; Moderate to High Relief;
Closed Hills; Mountains; Moderate and High Relief
Vegetation types (dominant types in bold) South Eastern Mountain Grassland; AltiMountain (Secondary) Grassland; AfroMountain Grassland; Moist Upland Grassland; North Eastern Mountain Grassland; Moist Cold Highveld Grassland; Moist Cool Highveld Grassland; Moist Sandy Highveld Grassland; Dry Sandy Highveld Grassland
Natal Central Bushveld (limited);
Patches Afromontane Forest.
Altitude (m a.m.s.l) Secondary 1100-3100; 3100-3500 limited
MAP (mm) (modifying) 400 to 1000
Coefficient of Variation (% of annual <20 to 35 precipitation)
Rainfall concentration index 30 to 65
Rainfall seasonality Early to late summer
Mean annual temp. (°C) <8 to 18
Mean daily max. temp. (°C): February <10 to 28
Mean daily max. temp. (°C): July <10 to 22
Mean daily min. temp. (°C): February <6 to 16
Mean daily min temp. (°C): July <-2 to 4
Median annual simulated runoff (mm) for 10 to >250 quaternary catchment
Main Attributes Eastern Escarpment Mountains 15.01
Terrain Morphology: Broad division Lowlands, Hills and Mountains; moderate and high relief
Terrain Morphology Irregular Undulating Lowlands with Hills
Vegetation types (dominant types in bold) Moist Cold Highveld Grassland, Moist Cool Highveld (Primary) Grassland, Wet Cold Highveld Grassland
60
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Altitude (m a.m.s.l.) 1300 - 1700
MAP (mm) 400 - 700
Coefficient of variation (% of annual 20 - 30 precipitation)
Rainfall concentration index 50 - 55
Rainfall seasonality Mid Summer, Late Summer
Mean annual temp (°C) 14 - 16
Mean daily max temp (°C) February 24 - 28
Mean daily max temp (°C) July 14 - 18
Mean daily min temp (°C) February 12 - 14
Mean daily min temp (°C) July >10
Median annual simulated runoff (mm) for 510 - 810 quaternary catchment
Main Attributes Eastern Escarpment Mountains 15.02
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief
Terrain Morphology High Mountains, Low Mountains
Vegetation types (dominant types in bold) Afro Mountain Grassland, Moist Cold Highveld Grassland (Primary)
Altitude (m a.m.s.l.) 1200 - 2900
MAP (mm) 500 - 700
Coefficient of variation (% of annual 25 - 35 precipitation)
Rainfall concentration index 45 - 55
Rainfall seasonality Mid Summer, Late Summer
Mean annual temp (°C) <8 - 14
Mean daily max temp (°C) February 18 - 24
Mean daily max temp (°C) July <10 - 16
Mean daily min temp (°C) February <6 - 12
Mean daily min temp (°C) July 8 - >10
Median annual simulated runoff (mm) for 810 - 1120 quaternary catchment
Main Attributes Eastern Escarpment Mountains 15.03
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief
61
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Terrain Morphology Low Mountains
Vegetation types (dominant types in bold) Wet Cold Highveld Grassland, North –eastern Mountain (Primary) Grassland, Afromontane Forest
Main Attributes Eastern Escarpment Mountains 15.03
Altitude (m a.m.s.l.) 1500 - 1900
MAP (mm) 500 - 800
Coefficient of variation (% of annual <20 - 25 precipitation)
Rainfall concentration index 50 - 55
Rainfall seasonality Mid summer, Early Summer
Mean annual temp (°C) 14 - 18
Mean daily max temp (°C) February 22 - 26
Mean daily max temp (°C) July <10 - 14
Mean daily min temp (°C) February 10 - 14
Mean daily min temp (°C) July 10 - >10
Median annual simulated runoff (mm) for 660 - 810 quaternary catchment
Main Attributes Eastern Escarpment Mountains 15.04
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief
Terrain Morphology Low Mountains
Vegetation types (dominant types in bold) Moist Cool Highveld Grassland, Wet Coool Highveld (Primary) Grassland, north-Eastern Mountain Grassland, Natal Central Bushveld, Moist Sandy Highveld Grassland.
Altitude (m a.m.s.l.) 1100 - 2100
MAP (mm) 500 - 700
Coefficient of variation (% of annual <20 - 30 precipitation)
Rainfall concentration index 60 - 65
Rainfall seasonality Mid Summer, Early Summer
Mean annual temp (°C) 14 - 18
Mean daily max temp (°C) February 22 - 26
Mean daily max temp (°C) July 14 - 20
Mean daily min temp (°C) February 10 - 14
62
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean daily min temp (°C) July >10
Median annual simulated runoff (mm) for quaternary catchment
Main Attributes Eastern Escarpment Mountains 15.05
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief
Terrain Morphology Low Mountains
Vegetation types (dominant types in bold) Wet Cold Highveld Grassland, North-Eastern Mountain (Primary) Grassland, Moist Sandy Highveld Grassland, Natal Central Bushveld, Afromontane Forest.
Altitude (m a.m.s.l.) 1100 - 2100
MAP (mm) 700 - 1000
Coefficient of variation (% of annual <20 - 25 precipitation)
Rainfall concentration index 55 - 60
Rainfall seasonality Mid Summer, Early Summer
Mean annual temp (°C) 14 - 18
Mean daily max temp (°C) February 20 - 26
Mean daily max temp (°C) July 14 - 20
Mean daily min temp (°C) February 10 - 14
Mean daily min temp (°C) July >10
Median annual simulated runoff (mm) for 510 - 560 quaternary catchment
Main Attributes Eastern Escarpment Mountains 15.06
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief. Open Hills, Lowlands, Mountains; moderate to high relief. Lowlands, Hills and Mountains; moderate and high relief.
Terrain Morphology High Mountains, Mountains and Lowlands, Low Mountains, Lowlands with Mountains
Vegetation types (dominant types in bold) Alti Mountain Grassland, South-eastern Mountain (Primary) Grassland.
Altitude (m a.m.s.l.) 2100 - 2900
MAP (mm) 500 – 700
Coefficient of variation (% of annual 20 - 30 precipitation)
Rainfall concentration index 30 - 60
63
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Rainfall seasonality Mid Summer, Late Summer, Very late Summer.
Mean annual temp (°C) 8 - 16
Mean daily max temp (°C) February 12 - 22
Mean daily max temp (°C) July <10 - 18
Mean daily min temp (°C) February <6 - 14
Main Attributes Eastern Escarpment Mountains 15.06
Mean daily min temp (°C) July 0 - >10
Median annual simulated runoff (mm) for 510 - 1300 quaternary catchment
Main Attributes Eastern Escarpment Mountains 15.07
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief.
Terrain Morphology High Mountains.
Vegetation types (dominant types in bold) Moist Upland Grassland, Alti Mountain Grassland, South- (Primary) eastern Mountain Grassland, North- eastern Mountain Grassland, Afromontane Forest, Natal Central Bushveld
Altitude (m a.m.s.l.) 1100 - 2100
MAP (mm) 700 - 800
Coefficient of variation (% of annual <20 - 25 precipitation)
Rainfall concentration index 45 - 60
Rainfall seasonality Mid Summer, Late Summer.
Mean annual temp (°C) 10 - 16
Mean daily max temp (°C) February 20 - 26
Mean daily max temp (°C) July 10 - 22
Mean daily min temp (°C) February 8 - 14
Mean daily min temp (°C) July >10
Median annual simulated runoff (mm) for 510 - 1120 quaternary catchment
64
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 16: SOUTH EASTERN UPLANDS
Table 16: Main attributes of the South Eastern Uplands Ecoregion.
Main Attributes South Eastern Uplands
Terrain Morphology: Broad division Plain Low Relief (limited); (dominant types) (Primary) Plains moderate Relief;
Lowlands; Hills and Mountains; Moderate and High Relief;
Open Hills; Lowlands; Mountains; Moderate to High Relief;
Closed Hills; Mountains; Moderate and High Relief
Vegetation types (dominant types in bold) Coast Hinterland Bushveld; Eastern Thorn Bushveld; Subarid (Secondary) Thorn Bushveld (very limited);
Short Mistbelt Grassland; North Eastern Mountain Grassland; Moist Upland Grassland; Coastal Grassland (very limited); South Eastern Mountain Grassland (very limited); AltiMountain Grassland (very limited);
Patches Afromontane Forest
Altitude (m a.m.s.l) (secondary) 300-500 (limited), 500-1700, 1700-2300 (limited)
MAP (mm) (modifying) 500 to 1000
Coefficient of Variation (% of annual <20 to 30 precipitation)
Rainfall concentration index 15 to 60
Rainfall seasonality Early to very late summer
Mean annual temp. (°C) 10 to 22
Mean daily max. temp. (°C): February 20 to 30
Mean daily max. temp. (°C): July 12 to 24
Mean daily min. temp. (°C): February 8 to 20
Mean daily min temp. (°C): July 0 to 10
Median annual simulated runoff (mm) for 40 to >250 quaternary catchment
Main Attributes South – Eastern Uplands 16.01
Terrain Morphology: Broad division Open Hills, Lowlands, Mountains; moderate to high relief. Closed Hills, Mountains; moderate and high relief. Lowlands, Hills and Mountains; moderate and high relief.
Terrain Morphology Undulating Hills and Lowlands, Low Mountains, Strongly
65
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Undulating Lowlands with Hills. Undulating Hills.
Vegetation types (dominant types in bold) Moist Upland Grassland, North-eastern Mountain Grassland, (Primary) Subarid Thorn Bushveld, Afromontane Forest, Short Misbelt Grassland, Valley Thicket, Coast-Hinterland Bushveld, Moist Upland Grassland, Alti Mountain Grassland.
Altitude (m a.m.s.l.) 1100 - 1900
MAP (mm) 600 – 800
Coefficient of variation (% of annual <20 - 25 precipitation)
Rainfall concentration index 50 - 60
Main Attributes South – Eastern Uplands 16.01
Rainfall seasonality Mid Summer, Early Summer
Mean annual temp (°C) 12 - 18
Mean daily max temp (°C) February 22 - 26
Mean daily max temp (°C) July 16 - 20
Mean daily min temp (°C) February 12 - 16
Mean daily min temp (°C) July 0 - 6
Median annual simulated runoff (mm) for 30 - 260 quaternary catchment
Main Attributes South – Eastern Uplands 16.02
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief.
Terrain Morphology Low Mountains, Undulating Hills.
Vegetation types (dominant types in bold) Short Misbelt Grassland, Valley Thicket, Coast Hinterland (Primary) Bushveld, Afromontane Forest, Coastal Bushveld/Grassland
Altitude (m a.m.s.l.) 300 - 1100
MAP (mm) 700 - 800
Coefficient of variation (% of annual 20 - 30 precipitation)
Rainfall concentration index 30 - 50
Rainfall seasonality Mid Summer, Late Summer, Early Summer
Mean annual temp (°C) 16 - 18
Mean daily max temp (°C) February 26 - 30
66
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean daily max temp (°C) July 20 - 24
Mean daily min temp (°C) February 16 - 20
Mean daily min temp (°C) July 6 - 10
Median annual simulated runoff (mm) for 30 - 130 quaternary catchment
Main Attributes South – Eastern Uplands 16.03
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief.
Terrain Morphology Undulating Hills, Low Mountains.
Vegetation types (dominant types in bold) Moist Upland Grassland, Afromontane Forest, Valley (Primary) Thicket, Short Misbelt Grassland, North- eastern Mountain Grassland
Altitude (m a.m.s.l.) 300 - 1100
MAP (mm) 700 - 800
Coefficient of variation (% of annual 20 - 30 precipitation)
Rainfall concentration index 30 - 50
Rainfall seasonality Mid Summer, Early Summer
Mean annual temp (°C) 16 - 18
Mean daily max temp (°C) February 24 - 28
Mean daily max temp (°C) July 18 - 22
Mean daily min temp (°C) February 14 - 18
Mean daily min temp (°C) July 4 - 8
Median annual simulated runoff (mm) for 30 - 180 quaternary catchment
Main Attributes South – Eastern Uplands 16.04
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief, Lowlands, hills and mountains; moderate and high relief, Plains; low relief, Open hills, lowlands, mountains; moderate to high relief.
Terrain Morphology Low Mountains, Strongly undulated lowlands with hills, Plains, Undulating hills and lowlands.
Vegetation types (dominant types in bold) Moist Upland Grassland, Afromontane Forest, Valley (Primary) Thicket, North- eastern Mountain Grassland.
Altitude (m a.m.s.l.) 1300 - 1900
MAP (mm) 600 - 700
67
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Coefficient of variation (% of annual 25 - 30 precipitation)
Rainfall concentration index 50 - 55
Rainfall seasonality Mid Summer
Mean annual temp (°C) 12 - 16
Mean daily max temp (°C) February 22 - 26
Mean daily max temp (°C) July 16 - 20
Mean daily min temp (°C) February 10 16
Mean daily min temp (°C) July 4 - 6
Median annual simulated runoff (mm) for 60 - 250 quaternary catchment
Main Attributes South – Eastern Uplands 16.05
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief, Lowlands, hills and mountains; moderate and high relief.
Terrain Morphology Low Mountains, Strongly undulated lowlands with hills.
Vegetation types (dominant types in bold) Moist Upland Grassland, Afromontane Forest, Valley (Primary) Thicket, North- eastern Mountain Grassland.
Altitude (m a.m.s.l.) 1100 - 1900
MAP (mm) 600 - 1000
Coefficient of variation (% of annual <20 - 25 precipitation)
Rainfall concentration index 45 – 55
Rainfall seasonality Mid Summer, Late Summer.
Mean annual temp (°C) 12 - 16
Mean daily max temp (°C) February 22 - 26
Mean daily max temp (°C) July 16 - 20
Mean daily min temp (°C) February 10 16
Mean daily min temp (°C) July 4 - 6
Median annual simulated runoff (mm) for 60 - 250 quaternary catchment
Main Attributes South – Eastern Uplands 16.06
Terrain Morphology: Broad division Lowlands, Hills; moderate and high relief, Closed Hills,
68
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
mountains; moderate and high relief.
Terrain Morphology Irregular undulating lowlands with hills, Low mountains.
Vegetation types (dominant types in bold) Moist Upland Grassland, Valley Thicket, Eastern Thorn (Primary) Bushveld, Afromontane Forest
Altitude (m a.m.s.l.) 0 - 1300
MAP (mm) 500 - 800
Coefficient of variation (% of annual <20 - 30 precipitation)
Rainfall concentration index 30 -50
Rainfall seasonality Later Summer, Mid Summer, Early Summer
Mean annual temp (°C) 14 - 18
Mean daily max temp (°C) February 24 - 28
Mean daily max temp (°C) July 16 - 20
Mean daily min temp (°C) February 12 - 18
Mean daily min temp (°C) July 2 - 8
Median annual simulated runoff (mm) for 20 - 250 quaternary catchment
Main Attributes South – Eastern Uplands 16.07
Terrain Morphology: Broad division Plains; moderate relief, Closed Hills, Mountains; moderate and high relief, Open hills, lowlands, mountains; moderate to high relief.
Terrain Morphology Low Mountains, Strongly Undulating Plains, Hills and Lowlands
Vegetation types (dominant types in bold) Moist Upland Grassland, Eastern Thorn Bushveld, (Primary) Afromontane Forest, Valley Thicket, Sub-arid Thorn Bushveld.
Altitude (m a.m.s.l.) 100 - 1700
MAP (mm) 500 - 800
Coefficient of variation (% of annual <20 - 30 precipitation)
Rainfall concentration index 15 - 45
Rainfall seasonality Late Summer, Very Late Summer
Mean annual temp (°C) 10 - 18
Mean daily max temp (°C) February 22 - 28
69
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean daily max temp (°C) July 12 - 22
Mean daily min temp (°C) February 8 - 18
Mean daily min temp (°C) July 2 - 10
Median annual simulated runoff (mm) for 20 - 250 quaternary catchment
70
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 17: NORTH EASTERN COASTAL BELT
Table 17: Main attributes of the North Eastern Coastal Belt Ecoregion.
Main Attributes North Eastern Coastal Belt
Terrain Morphology: Broad division (dominant Plains: Low Relief (limited) types in bold) (Primary) Plains: Moderate Relief (limited);
Closed Hills, Mountains; Moderate and High Relief;
Table Lands; Moderate and High Relief
Vegetation types (dominant types in bold) Coastal Bushveld\Grassland; Coast Hinterland (Secondary) Bushveld; Coastal Grassland
Subarid Thorn Bushveld; Valley Thicket;
Short Mistbelt Grassland (limited);
Patches Coastal forest and Patches Afromontane Forest
Altitude (m a.m.s.l) (Secondary) 0-700
MAP (mm) (modifying) 700 to 1000
Coefficient of Variation (% of annual <20 to 30 precipitation)
Rainfall concentration index 15 to 50
Rainfall seasonality Early to late summer
Mean annual temp. (°C) 16 to 22
Mean daily max. temp. (°C): February 24 to 30
Mean daily max. temp. (°C): July 18 to 24
Mean daily min. temp. (°C): February 14 to >20
Mean daily min temp. (°C): July 4 to >10
Median annual simulated runoff (mm) for 60 to >250 quaternary catchment
Main Attributes North-Eastern Coastal Belt 17.01
Terrain Morphology: Broad division Closed hills, mountains; moderate and high relief, Plain; low relief,
Terrain Morphology Highly Dissected Low Undulating Plains, Low Mountains, Undulating Hills, Plains.
71
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Vegetation types (dominant types in bold) Coastal Bushveld/Grassland, Coast-Hinterland Bushveld, (Primary) Valley Thicket, Sand Forest, Afromontane Forest.
Altitude (m a.m.s.l.) 0 - 900
MAP (mm) 600 - 800
Coefficient of variation (% of annual <20 - 30 precipitation)
Rainfall concentration index 30 - 45
Rainfall seasonality Mid Summer, Early Summer, Late Summer.
Mean annual temp (°C) 16 - 22
Mean daily max temp (°C) February 24 - 28
Mean daily max temp (°C) July 20 - 24
Mean daily min temp (°C) February 16 - >20
Mean daily min temp (°C) July 6 - >10
Median annual simulated runoff (mm) for 80 - >250 quaternary catchment
Main Attributes North-Eastern Coastal Belt 17.02
Terrain Morphology: Broad division Plains; moderate relief.
Terrain Morphology Moderately Undulated Plains.
Vegetation types (dominant types in bold) Coastal Bushveld/Grassland, Sand Forest, Coastal (Primary) Forest, Valley Thicket
Altitude (m a.m.s.l.) 0 - 300
MAP (mm) 600 - 700
Coefficient of variation (% of annual <20 - 20 precipitation)
Rainfall concentration index 30 - 45
Rainfall seasonality Mid Summer, Late Summer, Early Summer.
Mean annual temp (°C) 20 - 22
Mean daily max temp (°C) February 26 - 28
Mean daily max temp (°C) July 22 - 24
Mean daily min temp (°C) February 20 - >20
Mean daily min temp (°C) July >10
Median annual simulated runoff (mm) for 150 - >250 quaternary catchment
72
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes North-Eastern Coastal Belt 17.03
Terrain Morphology: Broad division Closed hills, mountains; moderate and high relief.
Terrain Morphology Highly Dissected Low Undulating Mountains.
Main Attributes North-Eastern Coastal Belt 17.03
Vegetation types (dominant types in bold) Valley Thicket, Short Mistbelt Grassland, Coast- (Primary) Hinterland Bushveld.
Altitude (m a.m.s.l.) 0 - 900
MAP (mm) 700 - 800
Coefficient of variation (% of annual >20 - 30 precipitation)
Rainfall concentration index 30 - 50
Rainfall seasonality Mid Summer
Mean annual temp (°C) 18 - 22
Mean daily max temp (°C) February 26 - 28
Mean daily max temp (°C) July 18 - 24
Mean daily min temp (°C) February 16 - 20
Mean daily min temp (°C) July 6 - 10
Median annual simulated runoff (mm) for 80 - 150 quaternary catchment
Main Attributes North-Eastern Coastal Belt 17.04
Terrain Morphology: Broad division Table Lands, moderate and high relief.
Terrain Morphology Table Lands (Mountains and Hill Plateux).
Vegetation types (dominant types in bold) Coastal Grassland, Moist Upland Grassland, Valley (Primary) Thicket, Afromontane Forest, Coastal Bushveld/Grassland, Dune Thicket, Coastal Forest.
Altitude (m a.m.s.l.) 0- 500
MAP (mm) 700 - 1000
Coefficient of variation (% of annual <20 - 25 precipitation)
Rainfall concentration index 30 - 45
Rainfall seasonality Mid Summer.
Mean annual temp (°C) 18 - 20
Mean daily max temp (°C) February 24 - 26
73
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean daily max temp (°C) July 20 - 22
Mean daily min temp (°C) February 16 - 20
Mean daily min temp (°C) July 8 - >10
Median annual simulated runoff (mm) for 150 - >250 quaternary catchment
74
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 18: DROUGHT CORRIDOR
Table 18: Main attributes of the Drought Corridor Ecoregion.
Main Attributes Drought Corridor
Terrain Morphology: Broad division Plains; Low Relief (very limited); (dominant types in bold) (Primary) Plains Moderate Relief (limited);
Lowlands; Hills and Mountains; Moderate and High Relief;
Open Hills; Lowlands; Mountains; Moderate to High Relief;
Closed Hills; Mountains; Moderate and High Relief
Vegetation types (dominant types in bold) Dry Sandy Highveld Grassland; South Eastern Mountain (Primary) Grassland; Moist Upland Grassland;
Subarid Thorn Bushveld; Eastern Thorn Bushveld;
Eastern Mixed Nama Karoo; Central Nama Karoo (limited); Upper Nama Karoo;
Valley Thicket (limited); Xeric Succulent Thicket;
Patches Afromontane Forest
Altitude (m a.m.s.l) (modifying) 100-300 (limited), 300-1900, 1900-2100 (limited)
MAP (mm) (Secondary) 100 to 500, 500-700 (limited)
Coefficient of Variation (% of annual 20 to 40 precipitation)
Rainfall concentration index 15 to 455
Rainfall seasonality Late to very late summer
Mean annual temp. (°C) 10 to 20
Mean daily max. temp. (°C): February 22 to 30
Mean daily max. temp. (°C): July 10 to 22
Mean daily min. temp. (°C): February 8 to 20
Mean daily min temp. (°C): July -2 to 10
Median annual simulated runoff (mm) for <5 to 100; 100 to 150 (limited) quaternary catchment
75
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes Drought Corridor 18.01
Terrain Morphology: Broad division Lowlands, hills and mountains; moderate and high relief.
Terrain Morphology Lowlands with hills.
Vegetation types (dominant types in bold) Eastern mixed nama-karoo, South-eastern mountain (Primary) Grassland.
Altitude (m a.m.s.l.) 700 - 1700
MAP (mm) 200 - 500
Coefficient of variation (% of annual 30 - 40 precipitation)
Rainfall concentration index 30 - 50
Rainfall seasonality Very late Summer, Late Summer.
Mean annual temp (°C) 14 - 18
Mean daily max temp (°C) February 26 - 30
Mean daily max temp (°C) July 14 - 18
Mean daily min temp (°C) February 10 - 16
Mean daily min temp (°C) July 0 - 2
Median annual simulated runoff (mm) for 5 - 20 quaternary catchment
Main Attributes Drought Corridor. 18.02
Terrain Morphology: Broad division Lowlands, hills and mountains; moderate and high relief, Closed hills, mountains; moderate and high relief, Open hills, lowlands, mountains; moderate to high relief, Plain; moderate relief, Plains, low relief.
Terrain Morphology Low mountains, Lowlands with mountains, Hills and lowlands, Lowlands with parallel hills, Slightly undulating plains, Strongly undulating plains, Irregular undulating lowlands with hills.
Vegetation types (dominant types in bold) South-eastern mountain Grassland, Eastern Mixed Nama- (Primary) Karoo, Moist Upland Grassland, Xeric Succulent Thicket, Afromontane forest, Sub-arid Thorn Bushveld, Valley Thicket, Eastern Thorn Bushveld.
Altitude (m a.m.s.l.) 0 - 1900
MAP (mm) 300 - 600
Coefficient of variation (% of annual 25 - 35 precipitation)
Rainfall concentration index 15 - 50
76
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Rainfall seasonality Late Summer, Very late Summer, All year.
Mean annual temp (°C) 14 - 20
Mean daily max temp (°C) February 22 - 30
Mean daily max temp (°C) July 14 - 22
Mean daily min temp (°C) February 8 - 18
Mean daily min temp (°C) July 0 - 8
Median annual simulated runoff (mm) for 10 - 150 quaternary catchment
Main Attributes Drought Corridor. 18.03
Terrain Morphology: Broad division Lowlands, hills and mountains; moderate and high relief, Closed hills, mountains; moderate and high relief.
Terrain Morphology Low mountains, Lowlands with mountains.
Vegetation types (dominant types in bold) Upper Nama-Karoo, Moist Upland Grassland, Xeric Succulent (Primary) Thicket, Afromontane forest, Sub-arid Thorn Bushveld, Valley Thicket, Eastern Thorn Bushveld.
Altitude (m a.m.s.l.) 0 - 1900
MAP (mm) 300 - 600
Coefficient of variation (% of annual 25 - 35 precipitation)
Rainfall concentration index 15 - 50
Rainfall seasonality Late Summer, Very late Summer, All year.
Mean annual temp (°C) 14 - 20
Mean daily max temp (°C) February 22 - 30
Mean daily max temp (°C) July 14 - 22
Mean daily min temp (°C) February 8 - 18
Mean daily min temp (°C) July 0 - 8
Median annual simulated runoff (mm) for 10 - 150 quaternary catchment
Main Attributes Drought Corridor 18.04
Terrain Morphology: Broad division Lowlands, hills, mountains; moderate and high relief, Open Hills, Lowlands, mountains; moderate to high relief, Plains; moderate relief,
Terrain Morphology Lowlands with Mountains, Hills and Lowlands, Lowlands with Hills, Slightly Irregular Plains,
77
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes Drought Corridor 18.04
Vegetation types (dominant types in bold) South-eastern mountain Grassland, Dry Sandy Highveld (Primary) Grassland, Eastern Mixed highveld grassland,
Altitude (m a.m.s.l.) 1300 – 1900
MAP (mm) 300 - 500
Coefficient of variation (% of annual 25 - 35 precipitation)
Rainfall concentration index 30 - 50
Rainfall seasonality Late Summer, Very late Summer.
Mean annual temp (°C) 12 - 16
Mean daily max temp (°C) February 22 - 28
Mean daily max temp (°C) July 12 - 18
Mean daily min temp (°C) February 10 - 14
Mean daily min temp (°C) July -2 - 2
Median annual simulated runoff (mm) for 20 - 100 quaternary catchment
78
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 19: SOUTHERN FOLDED MOUNTAINS
Table 19: Main attributes of the Southern Folded Mountains Ecoregion.
Main Attributes Southern Folded Mountains
Terrain Morphology: Broad division (dominant Plains; Low Relief (limited); types in bold) (Primary) Plains Moderate Relief (limited);
Lowlands; Hills and Mountains; Moderate and High Relief;
Open Hills; Lowlands; Mountains; Moderate to High Relief;
Closed Hills; Mountains; Moderate and High Relief
Vegetation types (dominant types in bold) Patches Afromontane Forest; (Secondary) Xeric Succulent Thicket (limited); Valley Thicket (limited); Spekboom Succulent Thicket;
Grassy Fynbos; Mountain Fynbos; Limestone Fynbos; Sand Plain Fynbos (Limited); South and South West Coast Renosterveld; Central Mountain Renosterveld; West Coast Renosterveld (very limited)
Eastern Mixed Nama Karoo; Central Nama Karoo; Great Nama Karoo (limited);
Eastern Thorn Bushveld (very limited);
Little Succulent Karoo; Lowland Succulent Karoo (very limited);
Altitude (m a.m.s.l) (Primary) 0-300 limited; 300-1900, 1900-2100 (limited)
MAP (mm) (modifying) 100 to 1500
Coefficient of Variation (% of annual <20 to 40 precipitation)
Rainfall concentration index <15 to 55
Rainfall seasonality Very late summer to winter to all year
Mean annual temp. (°C) 10 to 20
Mean daily max. temp. (°C): February 18 to 32
Mean daily max. temp. (°C): July 10 to 22
Mean daily min. temp. (°C): February 10 to 20
Mean daily min temp. (°C): July 0 to 10
Median annual simulated runoff (mm) for <5 to >250 quaternary catchment
79
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes Southern Folded Mountains 19.01
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief, Lowlands, hills and mountains; moderate and high relief.
Terrain Morphology Low mountains, Lowlands with parallel hills, Parallel hills, Low mountains.
Vegetation types (dominant types in bold) Central Nama-Karoo, Xeric Succulent Thicket, Grassy (Primary) Fynbos, Eastern Thorn Bushveld, Afromontane forest, Valley Thicket, Spekboom Succulent Thicket, Great Nama-Karoo, South and South-west coast Renosterveld, Mountain fynbos, Little Succulent Karoo, Central mountain Renosterveld.
Altitude (m a.m.s.l.) 100 - 1300
MAP (mm) 0 - 400
Coefficient of variation (% of annual 25 - 40 precipitation)
Rainfall concentration index <15 - 45
Rainfall seasonality Winter, All year (both dominant)
Main Attributes Southern Folded Mountains 19.01
Mean annual temp (°C) 14 - 18
Mean daily max temp (°C) February 28 - 32
Mean daily max temp (°C) July 12- 20
Mean daily min temp (°C) February 10 -20
Mean daily min temp (°C) July 0 -10
Median annual simulated runoff (mm) for <5 - 150 quaternary catchment
Main Attributes Southern Folded Mountains 19.02
Terrain Morphology: Broad division Closed Hills, mountains; moderate and high relief. Plains; moderate relief.
Terrain Morphology Low Mountains, Moderately undulating plains, Strongly undulating plains.
Vegetation types (dominant types in bold) Grassy fynbos, Mountain fynbos, South and South-west (Primary) coast Renosterveld, Valley thicket, Afromontane forest, Central Nama-Karoo, Spekboom succulent thicket.
Altitude (m a.m.s.l.) 0 - 1500
MAP (mm). 300 - 700
Coefficient of variation (% of annual <20 - 30
80
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008 precipitation).
Rainfall concentration index. <15 - 30
Rainfall seasonality. All year
Mean annual temp (°C). 14 - 18
Mean daily max temp (°C) February. 24 - 28
Mean daily max temp (°C) July. 10 - 20
Mean daily min temp (°C) February. 10 - 18
Mean daily min temp (°C) July. 0 - 8
Median annual simulated runoff (mm) for 40 - 200 quaternary catchment.
Main Attributes Southern Folded Mountains 19.03
Terrain Morphology: Broad division Closed hills, mountains; moderate and high relief.
Terrain Morphology Low mountains.
Vegetation types (dominant types in bold) Mountain fynbos, Sand plain fynbos, West coast (Primary) Renosterveld, Dune Thicket.
Altitude (m a.m.s.l.) 0 - 700
MAP (mm). 500 - 1000
Coefficient of variation (% of annual <20 - 30 precipitation).
Rainfall concentration index. 30 -50
Rainfall seasonality. Winter
Mean annual temp (°C). 14 - 18
Mean daily max temp (°C) February. 22 - 26
Mean daily max temp (°C) July. 12 - 18
Mean daily min temp (°C) February. 12 - 16
Mean daily min temp (°C) July. 6 - 10
Median annual simulated runoff (mm) for 200 - >250 quaternary catchment.
Main Attributes Southern Folded Mountains 19.04
Terrain Morphology: Broad division Closed hills, mountains; moderate and high relief, Plains; low relief.
Terrain Morphology High Mountains, Undulating Hills, Plains,
Vegetation types (dominant types in bold) Mountain fynbos, South and South-west coast
81
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
(Primary) renosterveld, Dune Thicket, West coast renosterveld,
Altitude (m a.m.s.l.) 0 - 1300
MAP (mm). 500 - 1000
Coefficient of variation (% of annual <20 - 50 precipitation).
Rainfall concentration index. 30 - 50
Rainfall seasonality. Winter
Mean annual temp (°C). 16 - 28
Mean daily max temp (°C) February. 10 - 18
Mean daily max temp (°C) July. 10 - 16
Mean daily min temp (°C) February. 10 - 18
Mean daily min temp (°C) July. 4 - 10
Median annual simulated runoff (mm) for >250 quaternary catchment.
Main Attributes Southern Folded Mountains 19.05
Terrain Morphology: Broad division Closed hills, mountains; moderate and high relief.
Terrain Morphology Low mountains, Undulating hills.
Vegetation types (dominant types in bold) (Primary) Mountain fynbos, Dune Thicket, Limestone fynbos.
Main Attributes Southern Folded Mountains 19.05
Altitude (m a.m.s.l.) 0 - 500
MAP (mm). 400 - 500
Coefficient of variation (% of annual 14 - 18 precipitation).
Rainfall concentration index. 15 - 45
Rainfall seasonality. Winter
Mean annual temp (°C). 14 - 18
Mean daily max temp (°C) February. 24 - 26
Mean daily max temp (°C) July. 16 - 18
Mean daily min temp (°C) February. 14 - 16
Mean daily min temp (°C) July. 6 - 8
Median annual simulated runoff (mm) for 80- 150 quaternary catchment.
82
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes Southern Folded Mountains 19.06
Terrain Morphology: Broad division Closed hills, mountains; moderate and high relief, Pains; low relief.
Terrain Morphology Low mountains, Slightly undulating plains, High mountains.
Vegetation types (dominant types in bold) Little Succulent Karoo, Central mountain Renosterveld, (Primary) Mountain fynbos,
Altitude (m a.m.s.l.) 100 - 700
MAP (mm). 200- 500
Coefficient of variation (% of annual <20 - 35 precipitation).
Rainfall concentration index. 15 - 45
Rainfall seasonality. Winter
Mean annual temp (°C). 16 - 18
Mean daily max temp (°C) February. 26 - 30
Mean daily max temp (°C) July. 14 - 20
Mean daily min temp (°C) February. 14 - 18
Mean daily min temp (°C) July. 4 - 6
Median annual simulated runoff (mm) for 60- 150 quaternary catchment.
Main Attributes Southern Folded Mountains 19.07
Terrain Morphology: Broad division Closed hills, mountains; moderate and high relief. Lowlands, hills and mountains; moderate and high relief. Open hills, lowlands, mountains; moderate and high relief. Closed hills, mountains; moderate and high relief. Plains; low relief.
Terrain Morphology Low mountains, Parallel hills and lowlands, Lowlands with parallel hills, Plains, Low mountains, Strongly Undulating plains, Parallel Hills.
Vegetation types (dominant types in bold) Little Succulent Karoo, Central mountain Renosterveld, (Primary) Mountain Fynbos, Lowland Succulent Karoo, Upland Succulent Karoo, Spekboom Succulent Thicket, South and South-west Coast Renosterveld.
Altitude (m a.m.s.l.) 100 - 1500
MAP (mm). 100 - 500
Coefficient of variation (% of annual 20 - 35 precipitation).
83
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Rainfall concentration index. <15 - 45
Rainfall seasonality. Winter, All year, Very late Summer.
Mean annual temp (°C). 14 - 18
Mean daily max temp (°C) February. 24 - 32
Mean daily max temp (°C) July. 12 - 20
Mean daily min temp (°C) February. 10 - 16
Mean daily min temp (°C) July. 2 - 6
Median annual simulated runoff (mm) for <5 - 100 quaternary catchment.
Main Attributes Southern Folded Mountains 19.08
Terrain Morphology: Broad division Closed hills, mountains; moderate and high relief.
Terrain Morphology High mountains.
Vegetation types (dominant types in bold) Mountain Fynbos, Little Succulent Karoo, Central (Primary) mountain Renosterveld.
Altitude (m a.m.s.l.) 300 - 900
MAP (mm). 300 - 600
Main Attributes Southern Folded Mountains 19.08
Coefficient of variation (% of annual <20 - 30 precipitation).
Main Attributes Southern Folded Mountains 19.08
Rainfall concentration index. <15 - 30
Rainfall seasonality. All year, Winter.
Mean annual temp (°C). 12 - 18
Mean daily max temp (°C) February. 26 - 28
Mean daily max temp (°C) July. 14 - 18
Mean daily min temp (°C) February. 10 - 14
Mean daily min temp (°C) July. 0 - 6
Median annual simulated runoff (mm) for 10 - 100 quaternary catchment.
Main Attributes Southern Folded Mountains 19.09
Terrain Morphology: Broad division Closed hills, mountains; moderate and high relief.
Terrain Morphology High Mountains.
Vegetation types (dominant types in bold) Mountain Fynbos, South and South-west Coast 84
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
(Primary) renosterveld, Spekboom Succulent Thicket, Central Nama Karoo, Central mountain renosterveld, Little Succulent Karoo, Lowland Succulent Karoo, Great Nama Karoo.
Altitude (m a.m.s.l.) 300 - 1900
MAP (mm). 100 - 800
Coefficient of variation (% of annual 20 - 40 precipitation).
Rainfall concentration index. <15 - 30
Rainfall seasonality. All year, Winter.
Mean annual temp (°C). 10 - 16
Mean daily max temp (°C) February. 24 - 32
Mean daily max temp (°C) July. <10 - 20
Mean daily min temp (°C) February. 10 - 16
Mean daily min temp (°C) July. 0 - 4
Median annual simulated runoff (mm) for < - 200 quaternary catchment.
Main Attributes Southern Folded Mountains 19.10
Terrain Morphology: Broad division Plains; moderate relief.
Terrain Morphology Slightly Irregular Plains
Vegetation types (dominant types in bold) Little Succulent Karoo, Spekboom Succulent Thicket. (Primary)
Altitude (m a.m.s.l.) 100 - 500
MAP (mm). 200 - 400
Coefficient of variation (% of annual 35 - 40 precipitation).
Rainfall concentration index. <15
Rainfall seasonality. All year.
Mean annual temp (°C). 16 - 20
Mean daily max temp (°C) February. 30 - 32
Mean daily max temp (°C) July. 18 - 22
Mean daily min temp (°C) February. 14 - 18
Mean daily min temp (°C) July. 4 - 6
85
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Median annual simulated runoff (mm) for 10 - 60 quaternary catchment.
86
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 20: SOUTH EASTERN COASTAL BELT
Table 20: Main attributes of the South Eastern Coastal Belt Ecoregion.
Main Attributes South Eastern Coastal Belt
Terrain Morphology: Broad division (dominant Plains; Low Relief (limited); types in bold) (Primary) Plains Moderate Relief;
Closed Hills; Mountains; Moderate and High Relief
Vegetation types (dominant types in bold) Dune Thicket; Mesic Succulent Thicket; Valley Thicket; (Primary) Xeric Succulent Thicket
Coastal Grassland;
Eastern Thorn Bushveld;
Grassy Fynbos (limited); Mountain Fynbos; South and South West Coast Renosterveld;
Afromontane Forest;
Altitude (m a.m.s.l) (primary) 0-500; 500-1300 limited
MAP (mm) (modifying) 300 to 1000
Coefficient of Variation (% of annual <20 to 40 precipitation)
Main Attributes South Eastern Coastal Belt
Rainfall concentration index <15 to 30
Rainfall seasonality All year to very late summer, to winter
Mean annual temp. (°C) 12 to 20
Mean daily max. temp. (°C): February 22 to 30
Mean daily max. temp. (°C): July 12 to 22
Mean daily min. temp. (°C): February 10 to 18
Mean daily min temp. (°C): July 2 to 10
Median annual simulated runoff (mm) for 10 to >250 quaternary catchment
Main Attributes South Eastern Coastal Belt 20.01
Terrain Morphology: Broad division Plains; moderate relief, Closed hills, mountains; moderate and high relief, Plains; low relief
Terrain Morphology Strongly Undulating Plains, Undulating Hills, Moderately Undulating Plains, Slightly Undulating Plains, Hills,
87
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Low Mountains.
Vegetation types (dominant types in bold) Mesic Succulent Thicket, Xeric Succulent Thicket, Eastern (Primary) Thorn Bushveld, Coastal Grassland, Coastal Forest, Valley Thicket, Grassy Fynbos, Dune Thicket, South and South-west Coast Renosterveld, Afromontane Forest.
Altitude (m a.m.s.l.) 0 - 300
MAP (mm). 300 - 700
Coefficient of variation (% of annual 20 - 35 precipitation).
Rainfall concentration index. <15 - 30
Rainfall seasonality. All year, Very late Summer.
Mean annual temp (°C). 16 - 20
Mean daily max temp (°C) February. 24 - 30
Mean daily max temp (°C) July. 18 - 22
Mean daily min temp (°C) February. 14 - 18
Mean daily min temp (°C) July. 6 - 10
Median annual simulated runoff (mm) for 10 - 200 quaternary catchment.
Main Attributes South Eastern Coastal Belt 20.02
Terrain Morphology: Broad division Closed hills; moderate and high relief, Plains; moderate relief,
Terrain Morphology High Mountains, Undulating Hills, Moderately Undulating Plains, Low Mountains.
Vegetation types (dominant types in bold) Mountain Fynbos, Afromontane Forest, Dune Thicket, (Primary) Grassy Fynbos, South and South-West Coast Renosterveld.
Altitude (m a.m.s.l.) 0 - 1300
MAP (mm). 500 - 800
Coefficient of variation (% of annual <20 - 30 precipitation).
Rainfall concentration index. <15
Rainfall seasonality. All year
Mean annual temp (°C). 14 - 18
Mean daily max temp (°C) February. 22 - 28
88
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean daily max temp (°C) July. 16 - 20
Mean daily min temp (°C) February. 10 - 18
Mean daily min temp (°C) July. 2 - 10
Median annual simulated runoff (mm) for 80 - >250 quaternary catchment.
89
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 21: GREAT KAROO
Table 21: Main attributes of the Great Karoo Ecoregion.
Main Attributes Great Karoo
Terrain Morphology: Broad division Plains; Low Relief; (dominant types in bold) (Primary) Plains Moderate Relief;
Lowlands; Hills and Mountains; Moderate and High Relief;
Open Hills, Lowlands; Mountains; Moderate to High Relief;
Closed Hills; Mountains; Moderate and High Relief;
Table-Lands: Moderate and High Relief
Vegetation types (dominant types in bold) Valley Thicket (limited); Spekboom Succulent Thicket (limited); (Primary) Central Nama Karoo; Eastern Mixed Nama Karoo (limited); Great Nama Karoo; Upper Nama Karoo; Bushmanland Nama Karoo (limited)
Lowland Succulent Karoo; Upland Succulent Karoo; Little Succulent Karoo (limited)
Escarpment Mountain Renosterveld;
Altitude (m a.m.s.l) (secondary) 100-300 (limited), 300-1700; 1700-1900 limited
MAP (mm) (modifying) 0 to 500
Coefficient of Variation (% of annual 30 to >40 precipitation)
Rainfall concentration index 15 to 65
Rainfall seasonality Very late summer to all year
Mean annual temp. (°C) 10 to 20
Mean daily max. temp. (°C): February 26 to >32
Mean daily max. temp. (°C): July 12 to 22
Mean daily min. temp. (°C): February 10 to 18
Mean daily min temp. (°C): July 0 to 8
Median annual simulated runoff (mm) for <5 to 40; 40 to 60 (limited) quaternary catchment
Main Attributes Great Karoo 21.01
Terrain Morphology: Broad division Table Lands; moderate and high relief.
90
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Terrain Morphology Table Lands (Mountains and Hill Plateux).
Vegetation types (dominant types in bold) Mountain Fynbos, Upland Succulent Karoo. (Primary)
Altitude (m a.m.s.l.) 500 - 900
MAP (mm) 200 - 300
Coefficient of variation (% of annual 30 - 40 precipitation)
Rainfall concentration index 55 - >65
Rainfall seasonality Winter
Mean annual temp (°C) 14 - 16
Mean daily max temp (°C) February 26 - 32
Mean daily max temp (°C) July 16 - 20
Mean daily min temp (°C) February 12 - 16
Mean daily min temp (°C) July 2 - 6
Median annual simulated runoff (mm) for <5 - 60 quaternary catchment
Main Attributes Great Karoo 21.02
Terrain Morphology: Broad division Plains; low relief.
Terrain Morphology Plains.
Vegetation types (dominant types in bold) Lowland Succulent Karoo, Upland Succulent Karoo, Central (Primary) Mountain Renosterveld.
Altitude (m a.m.s.l.) 500 – 1100
MAP (mm) 100 – 400
Coefficient of variation (% of annual 30 – 40 precipitation)
Rainfall concentration index 45 - >65
Rainfall seasonality Winter
Mean annual temp (°C) 16 – 20
Mean daily max temp (°C) February 28 - >32
Mean daily max temp (°C) July 14 – 20
Mean daily min temp (°C) February 12 – 18
Mean daily min temp (°C) July 2 – 6
Median annual simulated runoff (mm) for <5 - 80
91
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008 quaternary catchment
Main Attributes Great Karoo, 21.03
Terrain Morphology: Broad division Closed Hills; moderate and high relief, Open Hills, Lowlands, Mountains; moderate to high relief.
Terrain Morphology Low Mountains, Parallel Hills and Lowlands, Mountains and Lowlands.
Vegetation types (dominant types in bold) Great Nama Karoo, Escarpment Mountains Renosterveld, (Primary) Upland Succulent Karoo, Upper Nama Karoo.
Altitude (m a.m.s.l.) 500 – 1700
MAP (mm) 100 – 300
Coefficient of variation (% of annual 30 – 40 precipitation)
Rainfall concentration index 30 - 55
Rainfall seasonality Very late Summer, Winter
Mean annual temp (°C) 14 – 18
Mean daily max temp (°C) February 26 - 30
Mean daily max temp (°C) July 12 – 18
Mean daily min temp (°C) February 10 – 16
Mean daily min temp (°C) July 0 – 4
Median annual simulated runoff (mm) for <5 - 20 quaternary catchment
Main Attributes Great Karoo, 21.04
Terrain Morphology: Broad division Plains; moderate relief.
Terrain Morphology Extremely Irregular Plains (Almost Hilly).
Vegetation types (dominant types in bold) Great Nama Karoo, Lowland Succulent Karoo, Little (Primary) Succulent Central Nama Karoo.
Altitude (m a.m.s.l.) 100 – 900
MAP (mm) 100 – 200
Coefficient of variation (% of annual 35 – >40 precipitation)
Rainfall concentration index 30 - 55
92
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Rainfall seasonality Very Late Summer, All Year
Mean annual temp (°C) 16 – 18
Mean daily max temp (°C) February 28 - 32
Mean daily max temp (°C) July 16 – 20
Mean daily min temp (°C) February 12 – 16
Mean daily min temp (°C) July 2 – 6
Median annual simulated runoff (mm) for <5 - 10 quaternary catchment
Main Attributes Great Karoo 21.05
Terrain Morphology: Broad division Plains; low relief. Open Hills, Lowlands, Mountains; moderate to high relief. Lowlands, Hills, Mountains; moderate and high relief.
Terrain Morphology Plains, Low Mountains, Hills and Lowlands, Lowlands and Parallel Hills.
Vegetation types (dominant types in bold) Central Nama Karoo,Spekboom Succulent Thicket, Valley (Primary) Thicket, Xeric Succulent Thicket, Eastern Mixed Nama Karoo.
Altitude (m a.m.s.l.) 100 – 900
MAP (mm) 100 – 700
Coefficient of variation (% of annual 35 – 40 precipitation)
Rainfall concentration index 15 - 45
Rainfall seasonality Very Late Summer
Mean annual temp (°C) 16 – 20
Mean daily max temp (°C) February 28 - 32
Mean daily max temp (°C) July 16 – 22
Mean daily min temp (°C) February 14 – 18
Mean daily min temp (°C) July 2 – 6
Median annual simulated runoff (mm) for <5 - 20 quaternary catchment
93
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 22: SOUTHERN COASTAL BELT
Table 22: Main attributes of the Southern Coastal Belt Ecoregion.
Main Attributes Southern Coastal Belt
Terrain Morphology: Broad division (dominant Plains; Low Relief; types in bold) (Primary) Plains Moderate Relief;
Open Hills; Lowlands; Mountains; Moderate to High Relief;
Closed Hills; Mountains; Moderate and High Relief
Vegetation types (dominant types in bold) South and South West Coast Renosterveld; Central (Secondary) Mountain Renosterveld; Limestone fynbos; Mountain Fynbos; Laterite Fynbos (limited);
Dune Thicket;
Patches Afromontane Forest
Altitude (m a.m.s.l) (Primary) 0-700; 700-1500 (limited)
MAP (mm) (modifying) 300 to 1000
Coefficient of Variation (% of annual <20 to 40 precipitation)
Rainfall concentration index <15 to 50
Rainfall seasonality Winter to all year
Mean annual temp. (°C) 10 to 20
Mean daily max. temp. (°C): February 22 to 30
Mean daily max. temp. (°C): July 12 to 20
Mean daily min. temp. (°C): February 10 to 18
Mean daily min temp. (°C): July 4 to 10
Median annual simulated runoff (mm) for 10 to >250 quaternary catchment
Main Attributes Southern Coastal Belt 22.01
Terrain Morphology: Broad division Plains; low relief. Open Hills, Lowlands, Mountains; moderate to high relief. Lowlands.
Terrain Morphology Plains, Dune Hills with parallel Crests and Lowlands.
Vegetation types (dominant types in bold) Limestone fynbos, South and South-west Coast (Primary) Renosterveld, Dune Thicket.
94
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Altitude (m a.m.s.l.) 0 – 300
MAP (mm) 300 – 500
Coefficient of variation (% of annual 25 - 35 precipitation)
Rainfall concentration index <15 - 30
Rainfall seasonality All year
Mean annual temp (°C) 16 – 18
Mean daily max temp (°C) February 22 - 28
Mean daily max temp (°C) July 16 – 20
Mean daily min temp (°C) February 14 – 16
Mean daily min temp (°C) July 6 - 8
Median annual simulated runoff (mm) for 10 - 80 quaternary catchment
Main Attributes Southern Coastal Belt 22.02
Terrain Morphology: Broad division Closed Hills, mountains; moderate and high relief, Plains; moderate relief.
Terrain Morphology Undulating hills, Moderately Undulating Plains.
Vegetation types (dominant types in bold) South and South-west Coast Renosterveld, Mountain (Primary) Fynbos, Afromontane Forest, Dune Thicket.
Altitude (m a.m.s.l.) 0 – 500
MAP (mm) 300 – 700
Coefficient of variation (% of annual 20 - 35 precipitation)
Rainfall concentration index <15 - 30
Rainfall seasonality All year, Winter
Mean annual temp (°C) 14 – 18
Mean daily max temp (°C) February 24 - 30
Mean daily max temp (°C) July 16 – 20
Mean daily min temp (°C) February 14 – 18
Mean daily min temp (°C) July 4 - 10
Median annual simulated runoff (mm) for 20 - 250 quaternary catchment
95
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes Southern Coastal Belt 22.03
Terrain Morphology: Broad division Plains; low relief, Plains; moderate relief.
Terrain Morphology Plains and Pans, Moderately Undulating Plains.
Vegetation types (dominant types in bold) Limestone fynbos, South and South-west Coast (Primary) Renosterveld, Dune Thicket, Mountain Fynbos.
Altitude (m a.m.s.l.) 0 – 300
MAP (mm) 300 – 500
Coefficient of variation (% of annual precipitation) 30 - 35
Rainfall concentration index 15 - 30
Rainfall seasonality Winter, All year
Mean annual temp (°C) 16 – 18
Mean daily max temp (°C) February 24 - 26
Mean daily max temp (°C) July 16 – 20
Mean daily min temp (°C) February 14 – 16
Mean daily min temp (°C) July 6 - 8
Median annual simulated runoff (mm) for 20 - 60 quaternary catchment
Main Attributes Southern Coastal Belt 22.04
Terrain Morphology: Broad division Plains; moderate relief, Closed hills, mountains; moderate and high relief.
Terrain Morphology Strongly Undulating Plains, Hills.
Vegetation types (dominant types in bold) South and South-west Coast Renosterveld, Afromontane (Primary) Forest, Mountain Fynbos, Central Mountain Renosterveld.
Altitude (m a.m.s.l.) 0 – 1500
MAP (mm) 300 – 800
Coefficient of variation (% of annual precipitation) <20- 35
Rainfall concentration index 15 - 45
Rainfall seasonality Winter, All year
Mean annual temp (°C) 10 – 18
Mean daily max temp (°C) February 22 - 30
Mean daily max temp (°C) July 12 – 18
Mean daily min temp (°C) February 10 – 16
96
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean daily min temp (°C) July 4 - 8
Median annual simulated runoff (mm) for 20 - >250 quaternary catchment
Main Attributes Southern Coastal Belt 22.05
Terrain Morphology: Broad division Plains; low relief.
Terrain Morphology Plains.
Vegetation types (dominant types in bold) Dune Thicket, Mountain Fynbos Limestone Fynbos. (Primary)
Altitude (m a.m.s.l.) 0 – 300
MAP (mm) 400 – 600
Coefficient of variation (% of annual precipitation) 25- 35
Rainfall concentration index 30 - 45
Rainfall seasonality Winter
Mean annual temp (°C) 14 – 18
Mean daily max temp (°C) February 24 - 26
Mean daily max temp (°C) July 14 – 16
Mean daily min temp (°C) February 16 – 18
Mean daily min temp (°C) July 6 - 8
Median annual simulated runoff (mm) for 80 - 200 quaternary catchment
97
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 23: WESTERN FOLDED MOUNTAINS
Table 23: Main attributes of the Western Folded Mountains Ecoregion.
Main Attributes Western Folded Mountains
Terrain Morphology: Broad division (dominant Plains; Low Relief (limited); types in bold) (Primary) Plains Moderate Relief (limited);
Lowlands; Hills and Mountains; Moderate and High Relief;
Closed Hills; Mountains; Moderate and High Relief;
Table-Lands: Moderate and High Relief
Vegetation types (dominant types in bold) Mountain Fynbos; Central Mountain Renosterveld; West (Secondary) Coast Renosterveld (very limited);
Little Succulent Karoo; Upland Succulent Karoo (very limited); Strandveld Succulent Karoo (very limited)
Central Nama Karoo (1 patch);
Main Attributes Western Folded Mountains
Altitude (m a.m.s.l) (secondary) 100-300 (limited), 300-1700, 1700-2500 (limited)
MAP (mm) (modifying) 100 to 1500
Coefficient of Variation (% of annual <20 to 40 precipitation)
Rainfall concentration index 30 to >65
Rainfall seasonality Winter
Mean annual temp. (°C) 10 to 20
Mean daily max. temp. (°C): February 18 to >32
Mean daily max. temp. (°C): July 10 to 20
Mean daily min. temp. (°C): February 8 to 18
Mean daily min temp. (°C): July 0 to 8
Median annual simulated runoff (mm) for <5 (limited); 5 to >250 quaternary catchment
Main Attributes Western Folded Mountains 23. 01
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief, Plains, low relief.
Terrain Morphology High Mountains, Slightly Undulating Plains.
Vegetation types (dominant types in bold) Mountain Fynbos, Lowland Succulent Karoo, Central 98
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
(Primary) Mountain Renosterveld. Central Nama- Karoo.
Altitude (m a.m.s.l.) 100 - 1700
MAP (mm) 200 - 500
Coefficient of variation (% of annual 25 - 40 precipitation)
Rainfall concentration index 50 - 60
Rainfall seasonality Winter
Mean annual temp (°C) 14 - 18
Mean daily max temp (°C) February 24 - 30
Mean daily max temp (°C) July 12 - 18
Mean daily min temp (°C) February 10 - 16
Mean daily min temp (°C) July 2 - 6
Median annual simulated runoff (mm) for 40 - <250 quaternary catchment
Main Attributes Western Folded Mountains 23. 02
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief, Plains; moderate relief.
Terrain Morphology Low Mountains, Moderately Undulating Plains.
Vegetation types (dominant types in bold) Mountain Fynbos, Lowland Succulent Karoo, Sand Plain (Primary) Fynbos. Central Nama- Karoo.
Altitude (m a.m.s.l.) 100 - 700
MAP (mm) 100 - 500
Coefficient of variation (% of annual 30 - 40 precipitation)
Rainfall concentration index 50 - >65
Rainfall seasonality Winter
Mean annual temp (°C) 16 - 20
Mean daily max temp (°C) February 26 - >32
Mean daily max temp (°C) July 14 - 20
Mean daily min temp (°C) February 14 - 16
Mean daily min temp (°C) July 6 - 8
Median annual simulated runoff (mm) for <5 - 100 quaternary catchment
99
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Main Attributes Western Folded Mountains 23. 03
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief, Plains; Low relief, plains; moderate relief.
Terrain Morphology High Mountains, Slightly Undulating Plains, Low Mountains, Moderately Undulating Plains.
Vegetation types (dominant types in bold) Mountain Fynbos, south And South-west Coastal (Primary) Renosterveld, Central Mountain Renosterveld, West Coast Renosterveld.
Altitude (m a.m.s.l.) 300 - 1500
MAP (mm) 500 - 1500
Coefficient of variation (% of annual <20 - 25 precipitation)
Rainfall concentration index 30 - 55
Rainfall seasonality Winter
Mean annual temp (°C) 14 - 18
Mean daily max temp (°C) February 24 - 30
Mean daily max temp (°C) July 10 - 16
Mean daily min temp (°C) February 10 - 14
Main Attributes Western Folded Mountains 23. 03
Mean daily min temp (°C) July 2 - 6
Median annual simulated runoff (mm) for 150 - > 250 quaternary catchment
Main Attributes Western Folded Mountains 23. 04
Terrain Morphology: Broad division Closed Hills, Mountains; moderate and high relief, Plains; Low relief, plains; moderate relief.
Terrain Morphology High Mountains, Slightly Undulating Plains, Low Mountains, Moderately Undulating Plains.
Vegetation types (dominant types in bold) Mountain Fynbos, south And South-west Coastal (Primary) Renosterveld, Central Mountain Renosterveld, West Coast Renosterveld.
Altitude (m a.m.s.l.) 300 - 1500
MAP (mm) 500 - 1500
Coefficient of variation (% of annual <20 - 25 precipitation)
Rainfall concentration index 30 - 55
100
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Rainfall seasonality Winter
Mean annual temp (°C) 14 - 18
Mean daily max temp (°C) February 24 - 30
Mean daily max temp (°C) July 10 - 16
Mean daily min temp (°C) February 10 - 14
Mean daily min temp (°C) July 2 - 6
Median annual simulated runoff (mm) for 150 - > 250 quaternary catchment
101
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 24: SOUTH WESTERN COASTAL BELT
Table 24: Main attributes of the South Western Coastal Belt Ecoregion.
Main Attributes South Western Coastal Belt
Terrain Morphology: Broad division (dominant Plains; Low Relief; types in bold) (Primary) Plains Moderate Relief;
Closed Hills; Mountains; Moderate and High Relief
Vegetation types (dominant types in bold) Sand Plain Fynbos; Mountain Fynbos; West Coast (Primary) Renosterveld;
Dune Thicket;
Strandveld Succulent Karoo
Altitude (m a.m.s.l) (secondary) 0-300; 300-900 limited
MAP (mm) (modifying) 0 to 1500
Coefficient of Variation (% of annual precipitation) <20 to 40
Rainfall concentration index 30 to 60
Rainfall seasonality Winter
Mean annual temp. (°C) 10 to 20
Mean daily max. temp. (°C): February 24 to 32
Mean daily max. temp. (°C): July 12 to 20
Mean daily min. temp. (°C): February 12 to 18
Mean daily min temp. (°C): July 4 to 10
Median annual simulated runoff (mm) for <5; 20 to >250 quaternary catchment
Main Attributes South Western Coastal Belt 24. 01
Terrain Morphology: Broad division Moderately Undulating Plains
Terrain Morphology Moderately Undulating Plains, Low Mountains.
Vegetation types (dominant types in bold) Sand Plain Fynbos, Mountain Fynbos. (Primary)
Altitude (m a.m.s.l.) 100 - 500
MAP (mm) 100 - 400
Coefficient of variation (% of annual precipitation) 30 - 40
102
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Rainfall concentration index 45 - 55
Rainfall seasonality Winter
Mean annual temp (°C) 16 - 20
Mean daily max temp (°C) February 28 - 32
Mean daily max temp (°C) July 18 - 20
Mean daily min temp (°C) February 14 - 16
Mean daily min temp (°C) July 6 - 8
Median annual simulated runoff (mm) for <5 - 60 quaternary catchment
Main Attributes South Western Coastal Belt 24. 02
Terrain Morphology: Broad division Low Mountains
Terrain Morphology Low Mountains.
Vegetation types (dominant types in bold) Mountain Fynbos. Sand Plain Fynbos, (Primary)
Altitude (m a.m.s.l.) 100 - 1300
MAP (mm) 300 - 500
Coefficient of variation (% of annual precipitation) 25 - 35
Rainfall concentration index 50 - 55
Rainfall seasonality Winter
Mean annual temp (°C) 16 - 20
Mean daily max temp (°C) February 28 - 32
Mean daily max temp (°C) July 14 - 18
Mean daily min temp (°C) February 24 - 28
Mean daily min temp (°C) July 4 - 6
Median annual simulated runoff (mm) for <5 - 60 quaternary catchment
Main Attributes South Western Coastal Belt 24. 03
Terrain Morphology: Broad division Plains, Moderately Undulating Plains
Terrain Morphology Plains, Moderately Undulating Plains
103
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Vegetation types (dominant types in bold) Sand Plain Fynbos, Dune Thicket, West Coast (Primary) Renosterveld, Strandveld Succulent Karoo.
Altitude (m a.m.s.l.) 0 - 100
MAP (mm) 100 - 400
Coefficient of variation (% of annual precipitation) 30 - 40
Rainfall concentration index 50 - 60
Rainfall seasonality Winter
Mean annual temp (°C) 16 - 18
Mean daily max temp (°C) February 24 - 30
Mean daily max temp (°C) July 16 - 20
Mean daily min temp (°C) February 14 - 16
Mean daily min temp (°C) July 6 - 10
Median annual simulated runoff (mm) for <5 - 60 quaternary catchment
Main Attributes South Western Coastal Belt 24. 04
Terrain Morphology: Broad division Moderately Undulating Plains
Terrain Morphology Moderately Undulating Plains
Vegetation types (dominant types in bold) West Coast Renosterveld, Mountain Fynbos, Sand (Primary) Plain Fynbos.
Altitude (m a.m.s.l.) 0 - 300
MAP (mm) 300 - 400
Coefficient of variation (% of annual precipitation) 30 - 35
Rainfall concentration index 50 - 60
Rainfall seasonality Winter
Mean annual temp (°C) 16 - 18
Mean daily max temp (°C) February 24 - 30
Mean daily max temp (°C) July 16 - 20
Mean daily min temp (°C) February 14 - 16
Mean daily min temp (°C) July 6 - 8
Median annual simulated runoff (mm) for 10 - 100 quaternary catchment
Main Attributes South Western Coastal Belt 24. 05
104
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Terrain Morphology: Broad division Moderately Undulating Plains, Hills
Terrain Morphology Moderately Undulating Plains, Hills
Vegetation types (dominant types in bold) West Coast Renosterveld, Mountain Fynbos, Sand (Primary) Plain Fynbos, Central Mountain Renosterveld.
Altitude (m a.m.s.l.) 100 - 500
MAP (mm) 400 - 500
Coefficient of variation (% of annual precipitation) 25 - 35
Rainfall concentration index 30 - 55
Rainfall seasonality Winter
Mean annual temp (°C) 16 - 18
Mean daily max temp (°C) February 26 - 30
Mean daily max temp (°C) July 16 - 20
Mean daily min temp (°C) February 14 - 18
Mean daily min temp (°C) July 6 - 8
Median annual simulated runoff (mm) for 60 - 250 quaternary catchment
Main Attributes South Western Coastal Belt 24. 06
Terrain Morphology: Broad division Moderately Undulating Plains, Hills, Plains.
Terrain Morphology Moderately Undulating Plains, Hills, Plains.
Vegetation types (dominant types in bold) West Coast Renosterveld, Mountain Fynbos, Sand (Primary) Plain Fynbos.
Altitude (m a.m.s.l.) 100 - 1100
MAP (mm) 500 - 800
Coefficient of variation (% of annual precipitation) <20 - 30
Rainfall concentration index 30 - 55
Rainfall seasonality Winter
Mean annual temp (°C) 14 - 18
Mean daily max temp (°C) February 20 - 28
Mean daily max temp (°C) July 14 - 18
Mean daily min temp (°C) February 14 - 16
Mean daily min temp (°C) July 6 - 8
105
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Median annual simulated runoff (mm) for 100 - >250 quaternary catchment
106
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 25: WESTERN COASTAL BELT
Table 25: Main attributes of the Western Coastal Belt Ecoregion.
Main Attributes Western Coastal Belt
Terrain Morphology: Broad division (dominant types Plains; Low Relief; in bold) (primary) Plains Moderate Relief;
Closed Hills; Mountains; Moderate and High Relief
Vegetation types (dominant types in bold) Lowland Succulent Karoo; Upland Succulent Karoo (Secondary) (limited); Strandveld Succulent Karoo
Mountain Fynbos (limited)
Altitude (m a.m.s.l) (Secondary) 0-700, 700-1100 (limited)
MAP (mm) (modifying) 0 to 200
Coefficient of Variation (% of annual precipitation) 30 to >40
Rainfall concentration index 45 to 65
Rainfall seasonality Winter
Mean annual temp. (°C) 16 to 20
Mean daily max. temp. (°C): February 24 to >32
Mean daily max. temp. (°C): July 16 to 24
Mean daily min. temp. (°C): February 14 to 18
Mean daily min temp. (°C): July 2 to 10
Median annual simulated runoff (mm) for <5, 20-40 (limited) quaternary catchment
Main Attributes Western Coastal Belt 25.01
Terrain Morphology: Broad division Plain, low relief. Closed hills, mountains; moderate and high relief.
Terrain Morphology Plains, Undulating hills.
Vegetation types (dominant types in bold) (Primary) Lowland Succulent Karoo, Upland Succulent Karoo, Mountain fynbos, Strandveld Succulent Karoo.
Altitude (m a.m.s.l.) 100 - 1300
MAP (mm) 100 - 200
Coefficient of variation (% of annual precipitation) 35 - 40
Rainfall concentration index 50 - 60
107
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Rainfall seasonality Winter
Mean annual temp (°C) 16 - 20
Mean daily max temp (°C) February 28 - >32
Mean daily max temp (°C) July 16 - 20
Mean daily min temp (°C) February 14 - 16
Mean daily min temp (°C) July >10
Median annual simulated runoff (mm) for <5 quaternary catchment
Main Attributes Western Coastal Belt 25. 02
Terrain Morphology: Broad division Plain, moderate relief. Closed hills, mountains; moderate and high relief, Table-Lands; moderate and High relief, .
Terrain Morphology Moderately Undulating Plains, Low Mountains, Plains, Table-Lands (Mountain & Hill Plateux)
Vegetation types (dominant types in bold) (Primary) Lowland Succulent Karoo, Mountain fynbos, Strandveld Succulent Karoo.
Altitude (m a.m.s.l.) 0 - 300
MAP (mm) 100 - 200
Main Attributes Western Coastal Belt 25. 02
Coefficient of variation (% of annual precipitation) 35 - 40
Rainfall concentration index 45 - 60
Rainfall seasonality Winter
Mean annual temp (°C) 16 - 20
Mean daily max temp (°C) February 26 - 32
Mean daily max temp (°C) July 16 - 20
Mean daily min temp (°C) February 14 - 16
Mean daily min temp (°C) July >10
Median annual simulated runoff (mm) for <5 quaternary catchment
Main Attributes Western Coastal Belt 25. 03
Terrain Morphology: Broad division Plain, moderate relief.
Terrain Morphology Slightly Undulating Plains.
Vegetation types (dominant types in bold) (Primary) Lowland Succulent Karoo, Upland Succulent Karoo,
108
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Strandveld Succulent Karoo.
Altitude (m a.m.s.l.) 0 - 300
MAP (mm) 0 - 100
Coefficient of variation (% of annual precipitation) 30 - 40
Rainfall concentration index 55 - 65
Rainfall seasonality Winter
Mean annual temp (°C) 16 - 20
Mean daily max temp (°C) February 24 - 30
Mean daily max temp (°C) July 18 - 22
Mean daily min temp (°C) February 14 - 16
Mean daily min temp (°C) July >10
Median annual simulated runoff (mm) for <5 quaternary catchment
109
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 26: NAMA KAROO
Table 26: Main attributes of the Nama Karoo Ecoregion.
Main Attributes Nama Karoo
Terrain Morphology: Broad division (dominant Plains; Low Relief; types in bold) (Primary) Plains Moderate Relief;
Lowlands; Hills and Mountains; Moderate and High Relief;
Open Hills, Lowlands; Mountains; Moderate to High Relief;
Closed Hills; Mountains; Moderate and High Relief
Vegetation types (dominant types in bold) Eastern Mixed Nama Karoo; Upper Nama Karoo; (Primary) Bushmanland Nama Karoo; Orange River Nama Karoo; Great Nama Karoo (very limited)
Lowland Succulent Karoo (limited); Upland Succulent Karoo
Escarpment Mountain Renosterveld
Altitude (m a.m.s.l) (secondary) 300-1700, 1700-1900 (limited)
MAP (mm) (modifying) 0 to 500
Coefficient of Variation (% of annual 30 to >40 precipitation)
Rainfall concentration index 15 to >65
Rainfall seasonality Late to very late summer to Winter
Mean annual temp. (°C) 12 to 20
Mean daily max. temp. (°C): February 26 to >32
Mean daily max. temp. (°C): July 10 to 22
Mean daily min. temp. (°C): February 12 to 18
Mean daily min temp. (°C): July 0 to 6
Median annual simulated runoff (mm) for <5 to 60 quaternary catchment
Main Attributes Western Coastal Belt 26. 01
Terrain Morphology: Broad division Plains; moderate relief.
Terrain Morphology Hills.
Vegetation types (dominant types in bold) Orange Rive Nama Karoo. (Primary)
110
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Altitude (m a.m.s.l.) 900 - 1300
MAP (mm) 200 - 400
Coefficient of variation (% of annual 35 - 40 precipitation)
Rainfall concentration index 55 - 65
Rainfall seasonality Very late Summer, Late Summer
Mean annual temp (°C) 16 - 18
Main Attributes Western Coastal Belt 26. 01
Mean daily max temp (°C) February 28->
Mean daily max temp (°C) July 18 - 20
Mean daily min temp (°C) February 16 - 18
Mean daily min temp (°C) July 0 - 4
Median annual simulated runoff (mm) for 5 - 20 quaternary catchment
Main Attributes Western Coastal Belt 26. 02
Terrain Morphology: Broad division Plains; moderate relief, Plains; low relief, Closed Hills, mountains; moderate and high relief.
Terrain Morphology Plains, Slightly Irregular Plains (Scattered low hills) and Pans, Extremely Irregular Plains (Almost hilly), Hills, Slightly Irregular Plains, Plains.
Vegetation types (dominant types in bold) Orange Rive Nama Karoo, Bushmanland Nama Karoo, (Primary) Upper Nama Karoo.
Altitude (m a.m.s.l.) 500 - 1300
MAP (mm) 0 - 300
Coefficient of variation (% of annual 35 - >40 precipitation)
Rainfall concentration index 45 - 65
Rainfall seasonality Very late Summer, Winter.
Mean annual temp (°C) 16 - 20
Mean daily max temp (°C) February 28 - 32
Mean daily max temp (°C) July 16 - 20
Mean daily min temp (°C) February 14 - 18
Mean daily min temp (°C) July -2 - 4
111
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Median annual simulated runoff (mm) for <5 - 10 quaternary catchment
Main Attributes Western Coastal Belt 26. 03
Terrain Morphology: Broad division Lowlands, Hills and mountains; moderate and high relief, Open hills, lowlands, mountains; moderate and high relief.
Terrain Morphology Lowlands with Hills, Mountains and Lowlands, Hills.
Vegetation types (dominant types in bold) Eastern Mixed Nama Karoo, Upper Nama Karoo, (Primary) Bushmanland Nama Karoo, Upland Succulent Karoo, Escarpment Mountain Renosterveld.
Altitude (m a.m.s.l.) 1100 - 1500
MAP (mm) 0 - 500
Coefficient of variation (% of annual 30 - 40 precipitation)
Rainfall concentration index 15 - 55
Rainfall seasonality Very late Summer, Late Summer, Winter.
Mean annual temp (°C) 14 - 18
Mean daily max temp (°C) February 26 - 30
Mean daily max temp (°C) July 12 - 18
Mean daily min temp (°C) February 12 - 16
Mean daily min temp (°C) July 0 - 2
Median annual simulated runoff (mm) for <5 - 40 quaternary catchment
Main Attributes Western Coastal Belt 26. 04
Terrain Morphology: Broad division Plains; moderate relief.
Terrain Morphology Slightly Irregular Plains (Scattered low hills) and Pans, Slightly Irregular Plains, Hills.
Vegetation types (dominant types in bold) Bushmanland Nama Karoo, Upland Succulent Karoo, (Primary) Orange River Nama Karoo.
Altitude (m a.m.s.l.) 700 - 1500
MAP (mm) 0 - 200
Coefficient of variation (% of annual 35 - 40 precipitation)
Rainfall concentration index 30 - >65
Rainfall seasonality Very late Summer, Winter.
112
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean annual temp (°C) 16 - 20
Mean daily max temp (°C) February 26 - 32
Mean daily max temp (°C) July 14 - 20
Mean daily min temp (°C) February 14 - 18
Mean daily min temp (°C) July 0 - 4
Median annual simulated runoff (mm) for <5 - 40 quaternary catchment
Main Attributes Western Coastal Belt 26. 05
Terrain Morphology: Broad division Open Hills, lowlands, mountains; moderate to high relief, Lowlands, hills and mountains; moderate and high relief. Open hills, lowlands, mountains; moderate to high relief. Plains; moderate relief, Plains; low relief.
Terrain Morphology Hills, Lowlands with hills, Extremely Irregular Plains (Almost Hilly), Dune Hills with parallel Crests and Lowlands, Slightly Irregular Plains.
Vegetation types (dominant types in bold) Orange River Nama Karoo. (Primary)
Altitude (m a.m.s.l.) 700 - 1300
MAP (mm) 0 - 300
Coefficient of variation (% of annual 35 - 40 precipitation)
Rainfall concentration index 50 - >65
Rainfall seasonality Very late Summer, Late Summer..
Mean annual temp (°C) 16 - 20
Mean daily max temp (°C) February 30 - >32
Mean daily max temp (°C) July 16 - 22
Mean daily min temp (°C) February 16 - 18
Mean daily min temp (°C) July 0 - 4
Median annual simulated runoff (mm) for <5 - 20 quaternary catchment
ECOREGION 27: NAMAQUA HIGHLANDS
113
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Table 27: Main attributes of the Namaqua Highlands Ecoregion.
Main Attributes Namaqua Highlands
Terrain Morphology: Broad division (dominant Plains; Low Relief (limited); types in bold) (Primary) Closed Hills, Mountains; Moderate and High Relief
Vegetation types (dominant types in bold) Bushmanland Nama Karoo (limited); Upland Succulent (Primary) Karoo; Lowland Succulent Karoo;
North West Mountain Renosterveld; Patches Mountain Fynbos
Altitude (m a.m.s.l) (secondary) 100-1300; 1300-1500 limited
MAP (mm) (modifying) 0 to 200
Coefficient of Variation (% of annual 30 to >40 precipitation)
Rainfall concentration index 30 to 65
Rainfall seasonality Winter
Mean annual temp. (°C) 12 to 20
Mean daily max. temp. (°C): February 22 to 32
Mean daily max. temp. (°C): July 12 to 22
Mean daily min. temp. (°C): February 12 to 18
Mean daily min temp. (°C): July 2 to 8
Median annual simulated runoff (mm) for <5 to10; 20 to 40 quaternary catchment
Main Attributes Namaqua Highlands 27. 01
Terrain Morphology: Broad division Closed hills, mountains; moderate to high relief, Plains; low relief.
Terrain Morphology Low Mountains, Slightly Undulating Plains, Undulating Hills.
Vegetation types (dominant types in bold) Upland Sacculent Karoo, Lowland Sacculent Karoo, (Primary) Bushmanland Nama Karoo, North-western mountain Renosterveld, Mountain Fynbos.
Altitude (m a.m.s.l.) 0 - 1500
MAP (mm) 0 - 200
Coefficient of variation (% of annual 35 - >40 precipitation)
Rainfall concentration index 50 - >65
114
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Rainfall seasonality Winter.
Mean annual temp (°C) 14 - 20
Mean daily max temp (°C) February 24 - >32
Mean daily max temp (°C) July 14 - 22
Mean daily min temp (°C) February 12 -16
Mean daily min temp (°C) July 0 - 4
Median annual simulated runoff (mm) for <5 - 40 quaternary catchment
115
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 28: ORANGE RIVER GORGE
Table 28: Main attributes of the Orange River Gorge Ecoregion.
Main Attributes Orange River Gorge
Terrain Morphology: Broad division (dominant Plains Low Relief (limited); types in bold) (Primary) Closed Hills; Mountains; Moderate and High Relief
Vegetation types (dominant types in bold) Upland Succulent Karoo; (Primary NBI) Orange River Nama Karoo
Altitude (m a.m.s.l) (secondary) 0-1100
MAP (mm) (modifying) 0 to 100
Coefficient of Variation (% of annual 35 to >40 precipitation)
Rainfall concentration index 30 to >65
Rainfall seasonality Very late summer to winter
Mean annual temp. (°C) 16 to 22
Mean daily max. temp. (°C): February 30 to >32
Mean daily max. temp. (°C): July 16 to 24
Mean daily min. temp. (°C): February 14 to 20
Mean daily min temp. (°C): July 2 to 10
Median annual simulated runoff (mm) for <5 quaternary catchment
Main Attributes Orange River Gorge 28. 01
Terrain Morphology: Broad division Closed hills, mountains; moderate and high relief.
Terrain Morphology Low Mountains.
Vegetation types (dominant types in bold) Orange River Nama Karoo, Upland Sacculent Karoo. (Primary)
Altitude (m a.m.s.l.) 100 - 1100
MAP (mm) 0 - 100
Coefficient of variation (% of annual 40 - >40 precipitation)
Rainfall concentration index 30 - >65
Rainfall seasonality Very late Summer, Winter.
116
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean annual temp (°C) 18 - 22
Mean daily max temp (°C) February 30 - >32
Mean daily max temp (°C) July 18 - 24
Mean daily min temp (°C) February 16 -18
Mean daily min temp (°C) July 4 - 6
Median annual simulated runoff (mm) for <5. quaternary catchment
117
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 29: SOUTHERN KALAHARI
Table 29: Main attributes of the Southern Kalahari Ecoregion.
Main Attributes Southern Kalahari
Terrain Morphology: Broad division Plains; Low Relief; (dominant types in bold) (Secondary) Plains Moderate Relief;
Lowlands; Hills and Mountains; Moderate and High Relief (limited)
Open Hills, Lowlands; Mountains; Moderate to High Relief;
Closed Hills; Mountains; Moderate and High Relief
Vegetation types (dominant types in bold) Orange River Nama Karoo (limited); (Primary) Karroid Kalahari Bushveld; Shrubby Kalahari Dune Bushveld; Thorny Kalahari Dune Bushveld (limited);Kalahari Mountain Bushveld; Kalahari Plains Thorn Bushveld; Kalahari Plateau Bushveld; Kimberley Thorn Bushveld
Altitude (m a.m.s.l) (modifying) 500-1700; 1700-1900 limited
MAP (mm) (modifying) 0 to 500
Coefficient of Variation (% of annual 30 to >40 precipitation)
Rainfall concentration index 50 to >65
Rainfall seasonality Mid to very late summer
Mean annual temp. (°C) 14 to 22
Mean daily max. temp. (°C): February 28 to >32
Mean daily max. temp. (°C): July 14 to 22
Mean daily min. temp. (°C): February 14 to 20
Mean daily min temp. (°C): July -2 to 4
Median annual simulated runoff (mm) for <5 to 60 quaternary catchment
Main Attributes Southern Kalahari 29. 01
Terrain Morphology: Broad division Plains; low relief, Open hills, lowlands, mountains; moderate to high relief, Plains; moderate relief, Closed Hills, mountains; moderate and high relief.
Terrain Morphology Dune Hills with parallel Crests and Lowlands, Plains, Hills, Hills and Lowlands, Extremely Irregular Plains (Almost Hilly), Lowlands and Hills, Slightly Irregular Plains
118
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
(Scattered low hills) and Pans.
Vegetation types (dominant types in bold) Shrubby Kalahari Dune Bushveld, Kalahari Plains Thorn (Primary) Bushveld, Karroid Kalahari Bushveld, Kalahari Mountain Bushveld, Kalahari Plateau Bushveld.
Altitude (m a.m.s.l.) 700 - 1500
MAP (mm) 0 - 500
Coefficient of variation (% of annual 30 - 40 precipitation)
Rainfall concentration index 60 - >65
Rainfall seasonality Late Summer, Very late Summer, Mid Summer.
Mean annual temp (°C) 16 - 22
Mean daily max temp (°C) February 28 - >32
Mean daily max temp (°C) July 16 - 22
Mean daily min temp (°C) February 16 -20
Mean daily min temp (°C) July 0 - 4
Median annual simulated runoff (mm) for <5 – 40. quaternary catchment
Main Attributes Southern Kalahari 29. 02
Terrain Morphology: Broad division Plains; moderate relief, Plains; low relief, Open hills, lowlands, mountains; moderate to high relief, Closed Hills, mountains; moderate and high relief.
Terrain Morphology Slightly Irregular Plains (Scattered low hills) and Pans, Slightly Undulating Plains, Hills, Plains and Pans.
Vegetation types (dominant types in bold) Kimberley Thorn Bushveld, Kimberley Plateau Bushveld, (Primary) Kimberley Plains Thorn Bushveld.
Altitude (m a.m.s.l.) 1100 - 1700
MAP (mm) 200 - 500
Coefficient of variation (% of annual 30 - 40 precipitation)
Rainfall concentration index 50 - 65
Rainfall seasonality Late Summer, Very late Summer, Mid Summer.
Mean annual temp (°C) 16 - 20
Mean daily max temp (°C) February 28 - 32
Mean daily max temp (°C) July 18 - 20
119
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Mean daily min temp (°C) February 16 - 18
Mean daily min temp (°C) July 0 - 2
Median annual simulated runoff (mm) for 5 - 60 quaternary catchment
120
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 30: GHAAP PLATEAU
Table 30: Main attributes of the Ghaap Plateau Ecoregion.
Main Attributes Ghaap Plateau
Terrain Morphology: Broad division (dominant Plains; Low Relief; types in bold) (Primary) Plains Moderate Relief;
Closed Hills; Mountains; Moderate and High Relief (limited)
Vegetation types (dominant types in bold) Kalahari Plateau Bushveld; Kimberley Thorn Bushveld; (Primary) Kalahari Mountain Bushveld (limited); Kalahari Plains Thorn Bushveld
Altitude (m a.m.s.l) (secondary) 900-1700
MAP (mm) (modifying) 200 to 500
Coefficient of Variation (% of annual precipitation) 30 to 40
Rainfall concentration index 55 to 65
Rainfall seasonality Mid to late summer
Mean annual temp. (°C) 16 to 20
Mean daily max. temp. (°C): February 28 to 32
Mean daily max. temp. (°C): July 16 to 20
Mean daily min. temp. (°C): February 14 to 18
Mean daily min temp. (°C): July 0 to 2
Median annual simulated runoff (mm) for <5 to 40 quaternary catchment
Main Attributes Ghaap Plateau 30. 01
Terrain Morphology: Broad division Plains; low relief, Plains; moderate relief.
Terrain Morphology Plains and Pans. Slightly Irregular Plains (Scattered low hills) and Pans, Slightly Undulating Plains.
Vegetation types (dominant types in bold) Kalahari Plateau Bushveld, Kalahari Plains Thorn Bushveld, (Primary) Orange River Nama Karoo, Kalahari Mountain Bushveld, Kimberly Thorn Bushveld.
Altitude (m a.m.s.l.) 900 - 1700
MAP (mm) 200 - 500
Coefficient of variation (% of annual 30 - 40 precipitation)
121
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Rainfall concentration index 60 - >65
Rainfall seasonality Late Summer, Very late Summer, Mid Summer.
Mean annual temp (°C) 16 - 20
Mean daily max temp (°C) February 28 - 32
Mean daily max temp (°C) July 16 - 20
Mean daily min temp (°C) February 16 - 18
Mean daily min temp (°C) July 0 - 2
Median annual simulated runoff (mm) for <5 - 40 quaternary catchment
122
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
ECOREGION 31: EASTERN COASTAL BELT
Table 31: Main attributes of the Eastern Coastal Belt Ecoregion.
MAIN ATTRIBUTES EASTERN COASTAL BELT
Terrain Morphology: Broad division (dominant Plains: Moderate Relief (limited); types in bold) (Primary) Closed Hills, Mountains; Moderate and High Relief;
Vegetation types (dominant types in bold) Coastal Bushveld\Grassland (Limited); Eastern Thorn (Secondary) Bushveld;
Valley Thicket; Dune Thicket (limited);
Short Mistbelt Grassland (limited); Coastal Grassland
Patches Coastal forest and Patches Afromontane Forest
Altitude (m a.m.s.l) (Secondary) 0-500, 500-900 (limited)
MAP (mm) (modifying) 400 to 1000
Coefficient of Variation (% of annual <20 to 35 precipitation)
Rainfall concentration index <15 to 50
Rainfall seasonality Early to very late summer to all year
Mean annual temp. (°C) 16 to 20
Mean daily max. temp. (°C): February 24 to 28
Mean daily max. temp. (°C): July 18 to 22
Mean daily min. temp. (°C): February 14 to 20
Mean daily min temp. (°C): July 4 to >10
Median annual simulated runoff (mm) for 20 to >250 quaternary catchment
Main Attributes Eastern Coastal Belt 31. 01
Terrain Morphology: Broad division Closed Hills, mountains; moderate and high relief.
Terrain Morphology Low Mountains.
Vegetation types (dominant types in bold) Valley Thicket, Coastal Grassland, Coastal (Primary) Bushveld/Grassland. Afromontane forest, Coastal forest, Dune Thicket, Eastern Thorn Bushveld, Moist Upland Grassland
Altitude (m a.m.s.l.) 0 - 700
MAP (mm) 500 - 1000
123
Draft: Resource Quality Information Services, Roodeplaat Dam - 2008
Coefficient of variation (% of annual <20 – 35 precipitation)
Rainfall concentration index 15 - 45
Rainfall seasonality Early Summer, Mid Summer, Late Summer, Very late Summer. All year
Mean annual temp (°C) 16 - 20
Mean daily max temp (°C) February 24 - 26
Mean daily max temp (°C) July 20- 22
Mean daily min temp (°C) February 14 - 20
Mean daily min temp (°C) July 6 - >10
Median annual simulated runoff (mm) for 20 - >250 quaternary catchment
Main Attributes Eastern Coastal Belt 31. 02
Terrain Morphology: Broad division Closed Hills, mountains; moderate and high relief.
Terrain Morphology Highly Dissected Hills.
Vegetation types (dominant types in bold) Eastern Thorn Bushveld, Coastal Bushveld/Grassland. (Primary) Valley Thicket, Coastal forest, Afromontane forest, Coastal Grassland, Dune Thicket.
Altitude (m a.m.s.l.) 0 - 700
MAP (mm) 400 - 1000
Coefficient of variation (% of annual <20 – 30 precipitation)
Rainfall concentration index <15 - 45
Rainfall seasonality Early Summer, Mid Summer, Late Summer, Very late Summer. All year.
Mean annual temp (°C) 18 - 20
Mean daily max temp (°C) February 24 - 26
Mean daily max temp (°C) July 20- 22
Mean daily min temp (°C) February 16 - 20
Mean daily min temp (°C) July 8 - >10
Median annual simulated runoff (mm) for 20 - >250 quaternary catchment
124