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Key nature conservation features of National Significance
Key nature conservation features of Local Significance
Natural Areas
65 Chilterns
Chilterns The chalk escarpment of the Chilterns is a dominant geological and landscape feature which rises steeply from the Vale of Aylesbury to 275 metres above mean sea level. The scarp face is largely wooded in character, interspersed with areas of unimproved chalk downland and scrub on thin rendzina soils, but the northern end of the scarp is more open.

The habitats of the Chilterns that are of importance for nature conservation comprise chalk downland and scrub, ancient semi-natural and secondary woodlands, and species-rich hedgerows with small areas of acid grassland on the Chiltern Commons. The Chilterns contain the most extensive area of native beech woodland in England, which cover the full range of native beech woodland types. Chalk grassland is the other key habitat in the Natural Area. Associated with some areas of chalk grassland is a nationally important bryophyte and lichen community. The Chilterns is also a valuable area for a large number of rare and scarce plants, including arable weeds and lichens.
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