NCA 48: Trent & Belvoir Vales Key Facts & Data
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NCA 48: Trent & Belvoir Vales Key Facts & Data T his document provides a correspond to national data. If summary of environmental data you have any questions about collected for the NCA. It is the Key Facts and Data, please intended to help guide anyone contact: making decisions that may [email protected] affect the local environment. .uk. Your feedback will help The information contained here shape the content of the full is collated from the best NCA profiles, which will be available national datasets. It is published from September recognised local information 2012 onwards. may provide additional detail and that this will not always www.naturalengland.org.uk Map of Trent & Belvoir Vales Total Area: 177,604 ha The above map is provided from the Countryside Character Area description pending completion of NCA maps. It is recognised that the content of this map may now be out of date in some cases and is included for general reference only. New maps will include updated content and be provided within the full NCA profiles, due to be completed by 2013. 1. Landscape and Nature Conservation Designations There are no national landscape designations within this NCA. Source: Natural England (2011) 1.1 Designated nature conservation sites The NCA includes the following statutory nature conservation designations: Tier Designation Designated Area in Proportion Site(s) NCA of NCA International n/a n/a 0 ha 0% European Special n/a 0 ha 0% Protection Area (SPA) Special Area of n/a 0 ha 0% Conservation (SAC) National National Nature Muston 20 ha <1% Reserve (NNR) Meadows NNR National Site of Special A total of 33 685 ha <1% Scientific sites wholly or Interest (SSSI) partly within the NCA Source: Natural England (2011) Please Note: (i) Designated areas may overlap (ii) all figures are cut to Mean High Water Line, designations that span coastal areas/views below this line will not be included. There are 718 Local sites in the Trent & Belvoir Vales NCA covering 7,915 ha which is 4% of the NCA. Source: Natural England (2011) Details of individual Sites of Special Scientific Interest can be searched at: http://www.sssi.naturalengland.org.uk/Special/sssi/search.cfm Details of Local Nature Reserves (LNR) can be searched http://www.lnr.naturalengland.org.uk/Special/lnr/lnr_search.asp Maps showing locations of Statutory sites can be found at http://magic.defra.gov.uk/website/magic/ -select ‘Rural Designations Statutory’ 1.1.1 Condition of designated sites SSSI Condition Category Area in NCA Percentage of NCA SSSI Resource Unfavourable declining 9 ha 1% Favourable 139 ha 20% Unfavourable no change 175 ha 26% Unfavourable recovering 361 ha 53% Source: Natural England (March 2011) Details of SSSI condition can be searched at: http://www.sssi.naturalengland.org.uk/Special/sssi/reportIndex.cf m 2. Landform, Geology & Soils 2.1 Elevation The elevation ranges from -0.2m at the lowest point of the Trent Valley to 150m above sea level when land rises at the water basin boundaries. The average elevation is 30m elevation of the landscape. Source:Natural England (2010) 2.2 Landform & Process The solid geology of the Trent Valley is dominated by the Mercia Mudstones and the Sherwood Sandstones, two bands of rock which run parallel with the River Trent. Source:Trent and Belvoir Vales Countryside Character Area Description 2.3 Bedrock Geology The extensive and thick blanket of mudstones, formed during the Triassic period under desert-like conditions 240 million years ago, dominate much of the Nottinghamshire Clay Farmlands. Younger deposits (200-185 million years old) composed of clays, mudstones and ironstones occur in south Nottinghamshire post-glacial erosion has formed the distinctive hills or ‘rises’ of the area. Source:Trent and Belvoir Vales Countryside Character Area Description 2.4 Superficial Deposits Extensive deposition of glacial debris / boulderclay over 250,000 years ago was derived from a wide range of rock types reflecting the northern origin of the glaciers, producing a thick mixture of local clays and glacial pebbles. Glaciation has had a profound impact on the area, playing an important role in determining the surface geology, drainage, landscape character and wildlife of the Trent Valley as we see it today. There are significant alluvial deposits along the rivers such as the Trent, Devon and Witham. Source:Trent and Belvoir Vales Countryside Character Area Description 2.5 Designated Geological Sites Designation Number of Sites Geological Site of Special Scientific Interest 1 (SSSI) Mixed Interest SSSIs 0 There are 21 Local Geological Sites within the NCA. Source: Natural England (2011) Details of individual Sites of Special Scientific Interest can be searched at http://www.sssi.naturalengland.org.uk/Special/sssi/search.cfm 2.6 Soils and Agricultural Land Classification The mudstone gives rise to fertile, reddish, soils which are extensively used for arable land, whilst the clay soils are more suitable for grazing. Source:Trent and Belvoir Vales Countryside Character Area Description The main grades of agricultural land in the NCA are broken down as follows (as a proportion of total land area): Agricultural Land Area in NCA Proportion of Classification NCA Grade 1 180 ha <1% Grade 2 24,116 ha 14% Grade 3 139,310 ha 78% Grade 4 2,771 ha 2% Grade 5 0 ha 0% Non-agricultural 3,874 ha 2% Urban 7,354 ha 4% Source: Natural England (2010) 3. Key Water Bodies & Catchments 3.1 Major Rivers/Canals The following major rivers/canals (by length) have been identified in this NCA. River Name Length in NCA River Trent 96 km River Witham 53 km River Till 23 km River Brant 22 km River Devon 22 km Fairham Brook 12 km Foston Beck 12 km Dover Beck 10 km Source: Natural England (2010) Please Note: other significant rivers (by volume) may also occur. These are not listed where the length within the NCA is short. The Chesterfield, Fossdyke Navigation and Grantham Canals are large water courses in this NCA, 71 km. The River Trent meanders through a broad shallow valley in its mature stage, moving slowly but powerfully. At times of flood the volume increases ten-fold, spilling over onto the vital floodplains. The Vale of Belvoir is drained by the River Devon which flows north to join the Trent at Newark. To the east is the valley of the Witham and its tributary the Brant. The Witham also flows north, to Lincoln, where it is joined by the River Till which runs parallel to the Trent but flows southwards. The Witham then turns east to flow through the Lincoln Gap. 3.2 Water Quality The total area of Nitrate Vulnerable Zone is 177,605 ha forming 100% of the NCA. Source: Natural England (2010) 3.3 Protected Areas to be completed in consultation with the Environment Agency (full document only). 3.4 Water Framework Directive to be completed in consultation with the Environment Agency (full document only). 4. Trees and Woodlands 4.1 Total Woodland Cover The NCA contains 5,313 ha of woodland (3% of the total area), of which 1,996 ha is ancient woodland. The Greenwood Community Forest, one of twelve Community Forests established to demonstrate the contribution of environmental improvement to economic and social regeneration, covers 3,735 ha of this NCA, which is 2%. Source: Natural England (2010) 4.2 Distribution and size of woodland and trees in the landscape There are typically low levels of woodland cover and very low levels of surviving ancient woodland in this NCA, due to the longstanding agricultural use of this land. Wet woodland is also now scarce in the area. Willow Holts used to be a feature of the area but the only remaining one is at Farndon nature reserve. The area between Nottingham and Southwell, where small streams have created steep valleys known locally as ‘The Dumbles’, contains small- to medium- sized broadleaved woodland of oak and ash, found in long narrow strips along the river banks. Large plantations of conifers and blocks of deciduous woodland occur on the broad ridge west of Lincoln. Moderately sized game coverts, mixed plantations and shelter belts are dotted through the agricultural. Whilst not common, hedgerow trees, notably oak and ash add to the overall treed character of the landscape. Areas close to settlements or on former gravel extraction sites are notable for a higher level of woodland cover. Source:Trent Valley and Rises Natural Area Profile, Trent and Belvoir Vales Countryside Character Area Description 4.3 Woodland Types A statistical breakdown of the area and type of woodland found across the NCA is detailed below. Area and proportion of different woodland types in the NCA (over 2 ha) Woodland Type Area in NCA Proportion of NCA Broadleaved 3,329 ha 2% Coniferous 874 ha <1% Mixed 585 ha <1% Shrub / young trees 447 ha <1% Felled/land for prepared 77 ha <1% planting Source: Natural England (2010) Area and proportion of Ancient Woodland and Planted Ancient Woodland within the NCA Woodland Type Area in NCA Proportion of NCA Ancient semi-natural woodland 1,005 ha <1% Ancient re-planted woodland 991 ha <1% (PAWS) Source: Natural England (2004) 5. Boundary Features & Patterns 5.1 Boundary Features Boundaries are almost exclusively hedges, predominantly of hawthorn, although some species-rich hedges are found in places. Throughout, hedgerow trees are few and limited to oak with some ash and with willow along watercourses. In the sandy areas west of Lincoln, birch and pine occur in the hedgerows and along roadsides together with gorse and bracken. Towards the north-east, the landscape becomes more fenlike and hedges are fewer, with the fields divided by drainage dykes and drains.