biological Site of Special Scientific Interest
A Site of Special Scientific Interest (SSSI) in Great Britain or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland is a conservation designation denoting a protected area in the United Kingdom and Isle of ...
(a
conservation designation
A conservation designation is a name and/or acronym which explains the status of an area of land in terms of conservation or protection.
Examples United Kingdom
*Area of Outstanding Natural Beauty (AONB)
* Environmentally sensitive area
* Local n ...
denoting a
protected area
Protected areas or conservation areas are locations which receive protection because of their recognized natural, ecological or cultural values. There are several kinds of protected areas, which vary by level of protection depending on the ena ...
in the
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...
), in
Gloucestershire
Gloucestershire ( abbreviated Glos) is a county in South West England. The county comprises part of the Cotswold Hills, part of the flat fertile valley of the River Severn and the entire Forest of Dean.
The county town is the city of Gl ...
in
South West England
South West England, or the South West of England, is one of nine official regions of England. It consists of the counties of Bristol, Cornwall (including the Isles of Scilly), Dorset, Devon, Gloucestershire, Somerset and Wiltshire. Cities and ...
.Natural England SSSI information on citation, map and unit detail /ref> The site is listed in the 'Forest of Dean Local Plan Review' as a Key Wildlife Site (KWS).
Location
It is in the
Wye Valley
The Wye Valley Area of Outstanding Natural Beauty (AONB; cy, Dyffryn Gwy) is an internationally important protected landscape straddling the border between England and Wales.
The River Wye ( cy, Afon Gwy) is the fourth-longest river in th ...
Area of Outstanding Natural Beauty
An Area of Outstanding Natural Beauty (AONB; , AHNE) is an area of countryside in England, Wales, and Northern Ireland, that has been designated for conservation due to its significant landscape value. Areas are designated in recognition of thei ...
, an area of some importance in southern
Great Britain
Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. With an area of , it is the largest of the British Isles, the largest European island and the ninth-largest island in the world. It is ...
, and supports many rare species. The woods and groves are important areas of woodland conservation work,
coppicing
Coppicing is a traditional method of woodland management Forest management is a branch of forestry concerned with overall administrative, legal, economic, and social aspects, as well as scientific and technical aspects, such as silviculture, pro ...
and replanting. The semi-natural woodland is plentiful and continuous along the gorge. There are two separate SSSI designations for the gorge being Lower Wye Gorge and
Upper Wye Gorge
Upper Wye Gorge is a Site of Special Scientific Interest (SSSI), noted for its biological and geological characteristics, around Symonds Yat in the Wye Valley on the Wales–England border. The site is listed in the 'Forest of Dean Local Plan R ...
.
Wye Valley Woodlands/ Coetiroedd Dyffryn Gwy are recognised as a
Special Area of Conservation
A Special Area of Conservation (SAC) is defined in the European Union's Habitats Directive (92/43/EEC), also known as the ''Directive on the Conservation of Natural Habitats and of Wild Fauna and Flora''. They are to protect the 220 habitats and ap ...
The site comprises a block of ancient broad-leaved woodland on
Carboniferous
The Carboniferous ( ) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago ( Mya), to the beginning of the Permian Period, million years ago. The name ''Carbonifero ...
limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...
shales
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especiall ...
. There is an
Old Red Sandstone
The Old Red Sandstone is an assemblage of rocks in the North Atlantic region largely of Devonian age. It extends in the east across Great Britain, Ireland and Norway, and in the west along the northeastern seaboard of North America. It also exte ...
outcrop to the west. There are various streams and flushes in the north-east of Swanpool Wood. The growth reflects the nature of the soils. The woodland is made up of
Ash
Ash or ashes are the solid remnants of fires. Specifically, ''ash'' refers to all non-aqueous, non- gaseous residues that remain after something burns. In analytical chemistry, to analyse the mineral and metal content of chemical samples, ash ...
,
Small-leaved Lime
''Tilia cordata'', the small-leaved lime or small-leaved linden, is a species of tree in the family Malvaceae, native to much of Europe. Other common names include little-leaf or littleleaf linden, or traditionally in South East England, pry or p ...
and
Hazel
The hazel (''Corylus'') is a genus of deciduous trees and large shrubs native to the temperate Northern Hemisphere. The genus is usually placed in the birch family Betulaceae,Germplasmgobills Information Network''Corylus''Rushforth, K. (1999). ...
. The damper areas support
Alder
Alders are trees comprising the genus ''Alnus'' in the birch family Betulaceae. The genus comprises about 35 species of monoecious trees and shrubs, a few reaching a large size, distributed throughout the north temperate zone with a few sp ...
.
Bramble
A bramble is any rough, tangled, prickly shrub, usually in the genus ''Rubus'', which grows blackberries, raspberries, or dewberries. "Bramble" is also used to describe other prickly shrubs, such as roses (''Rosa'' species). The fruits inclu ...
,
Dog's Mercury
''Mercurialis perennis'', commonly known as dog's mercury, is a poisonous woodland plant found in much of Europe as well as in Algeria, Iran, Turkey, and the Caucasus, but almost absent from Ireland, Orkney and Shetland.Bluebell are prevalent in the ground flora together with ferns and ivy,
Hart's-tongue
''Asplenium scolopendrium'', commonly known as the hart's-tongue fern, is an evergreen fern in the genus ''Asplenium'' native to the Northern Hemisphere.
Description
The most striking and unusual feature of the fern is its simple, undivided fron ...
and wavy hair-grass. Uncommon species include
Herb Paris
''Paris quadrifolia'', the herb Paris or true lover's knot, is a species of flowering plant in the family Melanthiaceae. It occurs in temperate and cool areas throughout Eurasia, from Spain to Yakutia, and from Iceland to Mongolia. It prefers ...
,
Greater Butterfly Orchid
''Platanthera chlorantha'', commonly known as greater butterfly-orchid, is a species of orchid in the genus ''Platanthera''. It can be found throughout Europe and Morocco. The name ''Platanthera'' is derived from Greek, meaning "broad anthers", ...