APPENDIX 8A - National Infrastructure Planning

More documents

Recommendations

Info

Site Name/ Designation Norfolk Valley Fens SAC Ouse Washes SAC Reason for designation Approx. distance / direction from works Caprimulgus europaeus, hen harrier Circus cyaneus and merlin Falco columbarius. Depressions on peat substrates of Rhynchosporion. Dersingham Bog represents Depressions on peat substrates of the Rhynchosporion in eastern England. There are examples of this habitat type present in natural bog pools of patterned valley mire, in flushes on the margins of valley mire and locally in disturbed areas associated with trackways and paths in mire and wet heath. Mosaics containing this habitat type are important for bog orchid Hammarbya paludosa. Annex I habitats present as a qualifying feature, but not a primary reason for selection of this site European dry heaths. Annex I habitats that are a primary reason for selection of this site Alkaline fens: Norfolk Valley Fens is one of two sites selected in East Anglia, in eastern England, where the main concentration of lowland Alkaline fens occurs. This site comprises a series of valley-head spring-fed fens. Such spring-fed flush fens are very rare in the lowlands. Most of the vegetation at this site is of the small sedge fen type, mainly referable to M13 Schoenus nigricans – Juncus subnodulosus mire, but there are transitions to reedswamp and other fen and wet grassland types. The individual fens vary in their structure according to intensity of management and provide a wide range of variation. There is a rich flora associated with these fens, including species such as grass-of-Parnassus Parnassia palustris, common butterwort Pinguicula vulgaris, marsh helleborine Epipactis palustris and narrow-leaved marsh-orchid Dactylorhiza traunsteineri. Annex I habitats present as a qualifying feature, but not a primary reason for selection of this site: Northern Atlantic wet heaths with Erica tetralix European dry heaths Semi-natural dry grasslands and scrubland facies: on calcarious substrates (Festuco-Brometalia). Molinia meadows on calcareous, peaty or clayey-silt laden soils (Molinion caeruleae). Alluvial forests with Alnus glutinosa and Fraxinus excelsior (Alno-Padion, Alnion incanae, Salicion albae). Annex II species that area a primary reason for selection of this site: Narrow-mouthed whorl snail Vertigo angustior. At Flordon Common a strong population occurs in flushed grassland with yellow iris Iris pseudacorus maintained by light grazing. Desmoulin’s whorl snail Vertigo moulinsiana Norfolk Valley Fens is one of several sites representing this species in East Anglia. Within Norfolk Valley Fens there are a number of marginal fens around pingos – pools that formed in hollows left when large blocks of ice melted at the end of the last Ice Age. These are very ancient wetlands and several support strong populations of V. moulinsiana as part of a rich assemblage of Red Data Book and <strong>National</strong>ly Scarce species in standing water habitat. Annex II species that are a primary reason for selection of this site: Spined loach Cobitis taenia populations are present within the River Ouse catchment. The Counter Drain, with its clear water and abundant macrophytes, is particularly important, and a healthy population of spined loach is known to occur. 10.5km and 12km East 13.6km South
Site Name/ Designation Reason for designation Approx. distance / direction from works <strong>National</strong> Designations – Sites of Special Scientific Interest (SSSI) The Wash SSSI East Walton Common and Adcock’s Common SSSI Ouse Washes SSSI Islington Heronry SSSI River Nar SSSI The whole area is of exceptional biological interest. The intertidal mudflats and saltmarshes represent one of Britain's most important winter feeding areas for waders and wildfowl outside of the breeding season. Enormous numbers of migrant birds, of international significance, are dependant on the rich supply of invertebrate food. The saltmarsh and shingle communities are of considerable botanical interest and the mature saltmarsh is a valuable bird breeding zone. In addition the Wash is also very important as a breeding ground for Common Seals. East Walton Common and Adcock’s Common are separate areas about 1km apart but totalling 62ha in size. Notable for the chalky ridges and active springs which result in a mosaic of habitats ranging from open water and fen through to chalk grassland and scrub. The site contains some of the finest unimproved grassland remaining in Norfolk. The species-rich chalk grasslands contain 7 locally rare plants and the damp depressions on Adcock’s Common support a nationally rare plant community. The two commons have a rich invertebrate fauna with 28 Red Data Book and 79 nationally scarce species recorded (mostly associated with the fen habitats). Notable birds on site include snipe, woodcock, green woodpecker, nightingale and reed warbler. There are features of geological interest within the site but these are not within the remit of this report. The Ouse Washes SSSI covers the land between (and including) The Hundred Foot/New Bedford River and the Old BedfordRiver/Counter Drain. The washland is subject to regular winter flooding and undergoes traditional cattle grazing and hay cutting management. It supports large numbers of wintering and breeding wildfowl and waders and has important unimproved neutral grassland and aquatic floral and faunal communities. Is an isolated stand of mature oak which supports the largest colony of grey herons Ardea cinerea in Norfolk. Dykes adjacent to the site provide ideal foraging grounds for this species. The River Nar SSSI is a liner site following the course of the River Nar for 40km from King’s Lynn at the northwest extreme. Within the study area the site starts in King’s Lynn and runs south past the power station (approximately 1km east) before turning east and passing below the village of Setchey. The River combines the characteristics of a southern chalk stream and an East Anglian fen river and in combination with adjacent terrestrial habitats is considered an outstanding river system of its type with a diverse flora of over 70 species of riverine and bankside plants including many eutrophic and mesotrophic species. The section of the river running through the focused study area and buffer zone is less physically diverse than the upper reaches but possesses contrasting flora. The river is known locally for its brown trout Salmo trutta and seasonal flooding of adjacent land has created a rich diversity of habitats including rough fen and wet woodland. Important bird species recorded along the site include kingfisher, marsh harrier, lapwing, snipe and several species of warbler and tit. Twelve species of dragonfly have been recorded, this represent an outstanding assemblage for the UK. 6.7km North 10.5km and 12km East 13.6km South 4km West Within the Corridor
Page 1 and 2: King’s Lynn B Power Station Conne
Page 3: Site Name/ Designation Reason for d
Page 7 and 8: Priority habitats and species data
Page 9 and 10: COUNTY: Norfolk SITE NAME: RIVER NA
Page 11 and 12: COUNTY: Norfolk SITE NAME: ISLINGTO
Page 13 and 14: Survey date: 1995; Boundary revised
Page 15 and 16: Survey date: 1985
Page 17 and 18: Survey date: 1994
Page 19 and 20: - Increase the populations of breed
Page 21 and 22: kj !P ! !( $ $+$ - ! !P !P ^_ $ !P
Page 23 and 24: Count of ABUNDANCE REFERENCE NAME T
Page 25 and 26: King’s Lynn B Power Station Conne
Page 27 and 28: Habitat Type Protection Target Note
Page 29 and 30: ! !! ! A A A A A ! ! ! ! ! ! ! Ap A
Page 31 and 32: BAT TREE SURVEY REPORT FORM 1.0 GEN
Page 33 and 34: Bat Tree Survey Report Form T6 Oak
Page 35 and 36: Bat Tree Survey Report Form G29 Ald
Page 37 and 38: Delaminating bark may provides Bat
Page 39 and 40: Ravencroft Arboricultural Services
Page 41: Partially occluded rib crack on low
Page 44 and 45: CrossSectionOfStemIndicatingCavity
Page 46 and 47: OTTER AND WATER VOLE SURVEY 1.0 GEN
Page 48 and 49: 3.0 WATER VOLE & OTTER SURVEY RESUL
Page 50 and 51: 4.0 ADDITIONAL NOTES Mink scats and
Page 52 and 53: BREEDING BIRD SURVEY RECORD General
Page 54 and 55:
Breeding Bird Survey Record Summary
Page 56 and 57:
, GR #* WH food R ( CH BT juv þ #*
Page 58 and 59:
1. General Details: AMPHIBIAN MONIT
Page 60 and 61:
Kings Lynn Power Station B Connecti
Page 65 and 66:
Freepost RSKS-HKSY-GSJU National Gr
Page 67 and 68:
NG: 2014 or 2015. We still have to
Page 69 and 70:
NG: The farmer has asked us to move
Page 71:
Date: 05 July 2012 Our ref: 54446 Y
show all

APPENDIX 8A - National Infrastructure Planning

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?