TWO SENCE AND SOAR GREEN WEDGES PART TWO – SURVEY: CONTENTS [PLEASE NOTE: THE LANDUSE AND LANDSCAPE FEATURES PULL OUT PLAN ON PAGE 111 ACCOMPANIES PART 2b: ECOLOGICAL SECTION. ] page number 2a: PHYSICAL SURVEY Topography Geology Soils The Floodplain and Watercourses 7 9 10 11 2b: ECOLOGICAL SURVEY Overview Soar Valley (north) Soar Valley (south) Sence Meadows Narborough Bog Narborough Fields The Paddocks Cosby Fields Enderby Parkland Enderby Fields Ten Pound Rise 13 15 17 19 21 23 25 27 29 31 33 2c: TREE PRESERVATION ORDERS 35 2d: USAGE Landuse And Ownership Footpaths And Cycleways Path Condition 37 39 41 2e: ARCHAEOLOGY 43 PULL OUT PLAN – LANDUSE & LANDSCAPE FEATURES 111 6 SURVEY 2a: PHYSICAL SURVEY TOPOGRAPHY The green wedges study area is comprised predominantly of low lying land between 55 and 100 metres elevation above sea level. The bulk of the area is made up of the Sence and Soar river corridors, which lie between 55 and 65 metres. The Soar valley being the larger of the two, flowing from south to north gives rise to a large swathe of flat land, dotted with small isolated areas of rising land. The lowest point of this feature can be seen at the northern most point of the study area. Due to the low level of land surrounding the river valley much of the land is designated as floodplain, and is noted as such in the Blaby District Local Plan. In contrast to the River Soar corridor the land rises to the west of the M1 Motorway towards Enderby and Narborough to over 100 metres above sea level. This rise is gently sloping for the most part, levelling off to form a low ridge parallel with the River Soar. To the eastern side of the area are two smaller areas of elevated ground situated either side of the Sence valley. To the southern edge of the study area the land begins to rise very gently towards Cosby, where the green wedge broadens out to meet the open countryside beyond. The main topographical features within the study area other than the watercourses comprise predominantly of the linear embankments of the M1 motorway which cuts across the western side of the study area, the Leicester to Birmingham railway line which cuts across the centre of the area and the Great Central Way cycle route and the Old Great Central Railway line’, (formerly a railway line but now partially derelict), which lies to the eastern side. The M1 lies in a cutting between Enderby and Enderby St Johns, and is elevated to the northern and southern ends of the area. Where the M1 is elevated steep embankments area notable feature. Steep embankments also typify the Leicester to Birmingham railway line. The Great Central Way and Old Great Central Railway line, being located at the edge of the flood plain, is elevated down the whole of its length. 7 SENCE AND SOAR GREEN WEDGES 8 TWO SURVEY PHYSICAL SURVEY GEOLOGY AND SOILS Solid Geology The underlying rock within the study area consists predominantly of mudstones and sandstones. These give way towards the eastern end of the Sence Valley into clays, mudstones and limestones. The Blaby District Local Plan identifies the designation of a geological SSSI (Site of Special Scientific Interest), located in the north-eastern corner of the study area at the Enderby Warren Quarry area, adjacent the former Enderby Quarry 98hylandfill site. Drift Geology Along the rivers Sence and Soar the drift geology is comprised for the most part by recent alluvial river deposits. Bordering these alluvial deposits is an area with no drift cover. Further away from the river valleys alluvial deposits the drift geology consists of sometimes chalky glacial till deposits. Future Prospects of Sand and Gravel Extraction The Blaby District Local Plan identifies four locations where mineral reserves have been identified as a possible resource, although the plan also notes the requirements of further investigative work in order to ascertain the extent and quality of this reserve. Policy M4 states that: ‘Planning permission will not be granted for development which would sterilize or prejudice the extraction of proven mineral reserves from the following locations: (iii) Land in the Sour Valley South; Further to policy M4, Leicestershire County Council Minerals Section can be quoted in saying that; “There are currently no permissions for gravel extraction for this area. There are no applications for permission, …it is unlikely that there will be any renewed interest in the area.” The short-term threat or impact that extraction would cause to the Soar Valley would appear to be negligible. The Long-term impact, however unlikely, will depend on market forces and technological advances making this reserve a viable resource. 9 SENCE AND SOAR GREEN WEDGES TWO Soils The soils along the edges of both the rivers Sence and Soar are river alluviums. These are stone-less clayey soils, calcareous in places, forming flat land, variably affected by ground water and with a risk of flooding. A strip of land runs adjacent to the alluviums of the river Soar before its confluence with the River Sence, the soils of this area consist of glacio-fluvial or river terrace drift. These are deep, well drained coarse loamy and sandy soils. North of this area in the north western corner of the site, around Enderby, the substrate is a reddish till. This forms a slowly permeable, seasonally waterlogged reddish fine loam over clayey soil. To the south east of the River Soar a strip of land again runs adjacent to the river alluvium and stretches south down to Cosby. This soil is a deep permeable glaciofluvial drift, comprised of a coarse and loamy soil, which is affected by groundwater. Going eastward from this area the soil becomes a chalky till, a slowly permeable soil, with slight seasonal water logging and is comprised of fine loam over clay. Approximate position of study area indicated. 10 SURVEY PHYSICAL SURVEY THE FLOODPLAIN AND WATERCOURSES The River Soar The River Soar rises in south Leicestershire and flows northwards to meet the Trent west of Nottingham. It passes through the study area at an elevation of roughly 60 metres above sea level. The plan shows the highly meandering nature of the river’s course. This contrasts with the much straighter, engineered course of the Grand Union Canal which enters the study area for a short length of roughly 3km at its north eastern extremity. At approximately the centre of the study area the River Sence joins the Soar from the east. Whetstone Brook, the only other watercourse of any size within the study area, flows into the Soar to meet it at Narborough Bog some 2km upstream of the Sence junction. This watercourse is highly engineered and narrow, being little more than a ditch. The extent of the floodplain shown is taken from the Blaby District Local Plan, September 1999. It should be noted that this information is subject to re-evaluation by the Environment Agency. The River Soar’s floodplain extends from Aylestone playing fields in the north, to the east of Braunstone and down to Littlethorpe at it southern most point. At its widest most point the flood plain extends laterally approximately 600 metres and contains, close to the Sence junction, a number of large ponds. The River Soar’s floodplain is bordered by the Grand Union Canal to the east and therefore predominantly extends west of the river, covering mainly farmland as well as the Narborough Bog. The River Sence The River Sence drains an area to the south eastern side of Leicester and is a much smaller watercourse than the Soar. The floodplain of the Sence is therefore much less extensive than that of the Soar with its widest point within the study area being approximately 300 metres across. The Grand Union Canal A relatively short stretch of the canal enters the study area towards its north eastern corner. Although not formally part of the drainage system of the valley, the canal and its associated towpaths, lock and boundaries forms an important component of the landscape locally and is a widely used recreational resource. 11 SENCE AND SOAR GREEN WEDGES 12 TWO SURVEY 2b: ECOLOGICAL SURVEY AN OVERVIEW The green wedges are dominated by the flood plains of the Rivers Soar and Sence. There are a number of sites of importance for nature conservation within the two valleys most of which comprise grassland and are important at a Parish level. The River Soar is the major natural physical feature of the green wedges having an excellent diversity of aquatic and marginal flora and notable for its mature willows. Many of the willows are in need of pollarding to conserve their nature conservation value. Field boundaries are primarily comprised of tall unmanaged hawthorn dominated hedges with occasional mature ash, willow and oak. Woodland is scarce, in the green wedges and presumably a reflection of the predominately flood plain habitat. The two river valleys, the Grand Union Canal and the former Great Central Railway provide the most significant wildlife corridors in the green wedges. Of particular note is the Narborough Bog Site of Special Scientific Interest containing the only substantial deposit of peat within Leicestershire. The reserve is a mixture of wet woodland and damp meadows. On the northern boundary of the green wedges at Aylestone Meadows are two Wildlife sites. Potential Wildlife Sites have also been designated next to the River Sence and on the south-western boundary next to the River Soar at Narborough. Two kilometres of the Grand Union Canal on the eastern edge of the green wedges are important at a District level. The western part of the green wedges is notable for the lack of sites designated for their nature conservation interest despite the survey having recorded one of only two unimproved grasslands in the whole of the green wedges. Although pockets of wildlife interest exist, this western part is primarily an area of arable crops and amenity grassland. Enderby Warren is a Site of Special Scientific Interest but designated for its geological interest. Records from the Leicestershire Environmental Resources Centre show that Bats and Grass Snake are the only protected species in the green wedges. Reports of Otter on the Sence and upper Soar suggest that it is only a matter of time before these species can also be officially included in the list of protected species present. Water Vole were, until relatively recently, a common sight in the two valleys. Their preferred habitat is plentiful on the rivers and canal in the green wedges. Control of the North American Mink is perhaps all that is required to restore Water Vole in this area. There is much of nature conservation interest in the green wedges, from river, canal, brooks and ditches to grassland and ponds. Conserving the best of the existing habitats with appropriate management and enhancing the more intensively managed parts of the green wedges will increase the nature conservation value of this area. 13