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The Hudnalls ( & & ) is a biological Site of Special Scientific Interest in Gloucestershire, notified in 1972.〔(Natural England SSSI information on the citation )〕〔(Forest of Dean District Local Plan Review, adopted November 2005, Appendix D 'Nature Conservation Site Designations Within the Forest of Dean District', Sites of Special Scientific Interest )〕 The site (including The Tuffs & The Nedge) is listed in the 'Forest of Dean Local Plan Review' as a Key Wildlife Site (KWS).〔(Forest of Dean District Local Plan Review, adopted November 2005, Appendix D 'Nature Conservation Site Designations Within the Forest of Dean District', Key Wildlife Sites )〕 Wye Valley Woodlands/ Coetiroedd Dyffryn Gwy are recognised as a Special Area of Conservation (SAC) under the EU Habitats Directive.〔(Information on Wye Valley Woodlands/ Coetiroedd Dyffryn Gwy Special Area of Conservation designation )〕〔(Joint Nature Conservation Committee Listing of Special Areas of Conservation )〕 ==Location and habitat== There are eight separate units of assessment for this collection of woodlands which are in the Wye Valley Area of Outstanding Natural Beauty.〔(Natural England SSSI information on The Hudnall units )〕 Part of the site definition is registered as Common Land.〔 The Wye Valley is an important area in southern Britain for woodland conservation. The semi-natural woodland is plentiful, and continuous along the gorge. There are several other notified SSSIs in this region. The trees which make-up the woodlands are of many different types some of which are local, and there are rare species flourishing. There is unimproved grassland amongst the woodlands providing a rich mosaic and diverse habitats.〔 The Hudnalls is on steep slopes which face north and west, being valley sides along the River Wye, and a tributary, the Mork Brook. The site is between Bigsweir and Brockweir. There is some flat land at The Tuffs.〔 Old Red Sandstones, quartz conglomerate and other material contribute to the soil make-up which is mostly acidic. There are flushes, streams and springs where the soil is alkaline. Thus the rock formations and types of soil, together with how the area has been managed historically over the years, has contributed to the creation of one of the most interesting and diverse locations. Research has indicated a minimum of eleven different types of broadleaved woodland, which also means a ground flora which is different from wood to wood.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「The Hudnalls」の詳細全文を読む スポンサード リンク
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