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Special Areas of Conservation

Kennet Valley Alderwoods

Designated Special Area of Conservation (SAC)
Country England
Unitary Authority Berkshire, Buckinghamshire and Oxfordshire
Centroid* SU398675
Latitude 51.40444444
Longitude -1.4275
SAC EU Code UK0030175
Status Designated Special Area of Conservation (SAC)
Area (ha) 57.73
* This is the approximate central point of the SAC. In the case of large, linear or composite sites, this may not represent the location where a feature occurs within the SAC.
Location of Kennet Valley Alderwoods SAC

General site character

  • Broad-leaved deciduous woodland (100%)

Download the Natura 2000 standard data form for this site as submitted to Europe (PDF <100kb)

Note When undertaking an appropriate assessment of impacts at a site, all features of European importance (both primary and non-primary) need to be considered.

Annex I habitats that are a primary reason for selection of this site

  • These, the largest fragments of alder-ash woodland on the Kennet floodplain, lie on alluvium overlain by a shallow layer of moderately calcareous peat. The wettest areas are dominated by alder Alnus glutinosa over tall herbs, sedges and reeds, but dryer patches include a base-rich woodland flora with much dog’s mercury Mercurialis perennis and also herb-Paris Paris quadrifolia. The occurrence of the latter is unusual, as it is more typically associated with ancient woodland, whereas the evidence suggests that these stands have largely developed over the past century.

Annex I habitats present as a qualifying feature, but not a primary reason for selection of this site

  • Not Applicable

Annex II species that are a primary reason for selection of this site

  • Not Applicable

Annex II species present as a qualifying feature, but not a primary reason for site selection

  • Not Applicable

Many designated sites are on private land: the listing of a site in these pages does not imply any right of public access.