PROCEDURE for the EVALUATION of HMS, HQA and LRD
PROCEDURE FOR THE EVALUATION OF HMS, HQA and LRD
HMS is the total of the scores obtained at Spot-check and Sweep-up level. The scores for every record are reported in the following two tables.
Features considered for the evaluation of HMS for every spot-check (SC).
Features / Score (for every record)Bank reinforcement / 2
Bank toe reinforcement / 1
Bank top reinforcement / 1
Channel reinforcement / 2
Re-sectioning of the banks and channel / 1
Artificial bank (2 stages) / 1
Embankments / 1
Culverts / 8
Weir/Dams… / 2
Scores for number of Spot-checks
Poached river bank / <3 / 3-5 / ≥6
0 / 1 / 2
Features considered for the evaluation of HMS for the sweep-up.
Features / BanksOne (or channel) / Both
Artificial substratum of the channel / 1 / -
Reinforced bank / 2 / 3
Bank reinforced only at the toe or the top / 1 / 2
Re-sectioning of the bank / 1 / 2
Artificial bank (2 stages) / 3
Embankments / 1 / 1
Culverts / 8 for each one
Weir/Dams… / 2 for each one
Number of features
1 / ≥2
Bridges / 1 / 2
Deflectors / 1 / 2
<33% / ≥33%
Flow regulation / 1 / 2
Alignment of the channel / 5 / 10
HQA is the total of the scores obtained at Spot-check and Sweep-up level. The scores for every record are reported in the following two tables.
Features considered for the evaluation of HQA.
Category / Feature / Spot-check / Sweep-up#1 / #2-3 / #4≥
Flow type / Each type of flow / 1 / 2 / 3 / 1 each (if not registered in spotcheck)
Substratum type / Each type of substratum / 1 / 2 / 3 / 1 each (if not registered in spotcheck)
Boulders / 1 / 2 / 3 / 1 each (if not registered in spotcheck)
Bedrock / 1 / 2 / 3 / 1 each (if not registered in spotcheck)
Deposition features of the channel / Mid-channel bar (no vegetation) / 1 / 2 / 3 / 1 each (if not registered in spotcheck)
Mid-channel bar (vegetation) / 1 / 2 / 3 / 1 each (if not registered in spotcheck)
Mature island / 1 / 2 / 3 / 1 each (if not registered in spotcheck)
Erosion and deposition features of the bank / Eroding earth cliff / 1 / 2 / 3 / 1 each (if not registered in spotcheck)
Stable earth cliff / 1 / 2 / 3 / 1 each (if not registered in spotcheck)
Unvegetated point bar / 1 / 2 / 3 / 1 each (if not registered in spotcheck)
Vegetated point bar / 1 / 2 / 3 / 1 each (if not registered in spotcheck)
Unvegetated side bar / 1 / 2 / 3 / 1 each (if not registered in spotcheck)
Vegetated side bar / 1 / 2 / 3 / 1 each (if not registered in spotcheck)
3-8 / ≥9
Both point bars / 1 / 2
Vegetation structure / Simple vegetation type / 1 / 2 / 3 / -
Complex vegetation type / 1 / 2 / 3 / -
Macrophytes / Liverworts/mosses/lichens / 1 / 2 / 3 / -
Emergent broad-leaved herbs / 1 / 1 / 2 / -
Emergent reeds/sedges/rushes / 1 / 1 / 2 / -
Floating-leaved / 1 / 1 / 2 / -
Amphibious / 1 / 1 / 2 / -
Submerged broad-leaved / 1 / 1 / 2 / -
Submerged linear-leaved / 1 / 1 / 2 / -
Submerged fine-leaved / 1 / 1 / 2 / -
Present / Extensive
Soil use within 50 m of the bank / Broadleaf woodland / 1 / 2
Moorland / 1 / 2
Wetland / 1 / 2
Just registered: broadleaf or coniferous woodland and wetlands / 7
Number of trees / Trees in small groups / 1
Continous or semi-continuous trees / 3
Other features / Overhanging boughs / 1 / 1
Coarse woody debris / 1 / 3
Fallen trees / 1 / 5
Special features / Natural falls (> 5m), natural open water, leafy debris, marsh, flush, water meadow… / 5
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Features considered for the evaluation of LRD for the single Spot-check.
Category / Feature / ScoreF / Flow type / Main channel / Secondary channel
Lentic (dry or not perceptible) / 8 / -
Intermediate (chute, smooth and upwelling) / 2 / 1
Rippled / -0.5
Unbroken standing waves / -1 / -0.5
Lotic (broken standing waves, free fall…) / -2 / -1
S / Channel substratum / Clay, silt, sand / 1 / 0.5
Bedrock, gravel / 0 / 0
Cobble, boulders / -1 / -0.5
Artificial / 0 / 0
D / Maximum depth of the water / >75 cm / 1
25<x<75 cm / 0.5
<25 cm / 0
Presence (<33%) / Extensive(>33%)
V / Vegetation in the channel / Reeds, Floating-leaved / 1 / 3
CPOM/FPOM / 1 / 3
Liverworts/mosses/lichens / -1 / 3
Features considered for the evaluation of LRD for the Sweep-up.
Category / Feature / Present / Frequent / Very frequentSWC / Flow type / (1-3) / (3-6) / (>6)
Lentic (dry) / 16 / 24 / 24
Lentic (not perceptible) / 4 / 6 / 10
Intermediate (chute, smooth and upwelling) / 4 / 6 / 10
Rippled / -1 / -1.5 / -2.5
Unbroken standing waves / -2 / -3 / -5
Lotic (broken standing waves, free fall…) / -4 / -6 / -10
Bars / Every bar registered / -0.5 (max -5)
Major / Intermediate / Minor
SWSa / Artificial features / Weirs, dams… / 2 / 1 / 1
Fords, deflector / 1 / 1 / 1
<33% / >33%
SWSa / General information / Is there flow regulation? / 3 / 7
SWSn / Particular features / Natural falls > 5m / -3 / -5
Natural falls < 5m / -1 / -3
Leafy debris / 1 / 3
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Being:
Chi: main channel (I) or secondary channel (II)
a/n: artificial or natural
x: number of the spotcheck
ww: width of the water for every single channel
Tww: total width of the water
The total LRD is obtained as:
Where LRDa represents the part of LRD due to artificial features of the channel and LRDn represents the part of LRD due to natural features.
For every spotcheck:
For the whole site:
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