Risley Moss
Encyclopedia
Risley Moss is an area of peat bog situated near Birchwood
in Warrington
, England. It covers an area of and is one of the last remaining fragments of the raised bogs that once covered large areas of South Lancashire and North Cheshire. Natural depressions in the glacial drift left by the ice sheets which covered the Cheshire–Shropshire plain during the last ice age
, 10,000–15,000 years ago, filled with water, forming the mere
s and mosses characteristic of the area today. In some cases, like Risley Moss, peat
accumulation filled the depression, allowing colonisation by bog mosses such as the Sphagnum varieties, thus giving rise to the name "moss".
Risley Moss is one of only two mosses in Cheshire
where the water level has been deliberately raised in an attempt to encourage the regeneration of an active bog surface. The long-term restoration project to re-wet the moss began in 1978 and was completed in 2002. This scheme was undertaken to create a series of scrapes and bunds to retain water and recreate the perfect conditions for bog flora such as cotton grass and sphagnum mosses to re-colonise the bogs.
It was the former site of a large Royal Ordnance Factory. Today, it is managed by Cheshire County Council as a country park and an educational nature reserve. It was designated a Site of Special Scientific Interest in 1986. Risley Moss, together with Astley and Bedford Mosses
and Holcroft Moss, is also a European Union
designated Special Area of Conservation
, known as Manchester Mosses.
Tours across the flats and nature reserve are available from the main information centre and are undertaken by local rangers.
In addition to the natural features and landscape, there are several sculptures around the site, usually with a natural theme.
Birchwood
Birchwood is a civil parish in the north-eastern part of Warrington, Cheshire, England with a population of 11,395 . Historically a part of Lancashire, it is the easternmost part of the Warrington urban area. It was built during the time of much expansion in Warrington as it became a "new town"...
in Warrington
Warrington
Warrington is a town, borough and unitary authority area of Cheshire, England. It stands on the banks of the River Mersey, which is tidal to the west of the weir at Howley. It lies 16 miles east of Liverpool, 19 miles west of Manchester and 8 miles south of St Helens...
, England. It covers an area of and is one of the last remaining fragments of the raised bogs that once covered large areas of South Lancashire and North Cheshire. Natural depressions in the glacial drift left by the ice sheets which covered the Cheshire–Shropshire plain during the last ice age
Ice age
An ice age or, more precisely, glacial age, is a generic geological period of long-term reduction in the temperature of the Earth's surface and atmosphere, resulting in the presence or expansion of continental ice sheets, polar ice sheets and alpine glaciers...
, 10,000–15,000 years ago, filled with water, forming the mere
Mere (lake)
Mere in English refers to a lake that is broad in relation to its depth, e.g. Martin Mere. A significant effect of its shallow depth is that for all or most of the time, it has no thermocline.- Etymology :...
s and mosses characteristic of the area today. In some cases, like Risley Moss, peat
Peat
Peat is an accumulation of partially decayed vegetation matter or histosol. Peat forms in wetland bogs, moors, muskegs, pocosins, mires, and peat swamp forests. Peat is harvested as an important source of fuel in certain parts of the world...
accumulation filled the depression, allowing colonisation by bog mosses such as the Sphagnum varieties, thus giving rise to the name "moss".
Risley Moss is one of only two mosses in Cheshire
Cheshire
Cheshire is a ceremonial county in North West England. Cheshire's county town is the city of Chester, although its largest town is Warrington. Other major towns include Widnes, Congleton, Crewe, Ellesmere Port, Runcorn, Macclesfield, Winsford, Northwich, and Wilmslow...
where the water level has been deliberately raised in an attempt to encourage the regeneration of an active bog surface. The long-term restoration project to re-wet the moss began in 1978 and was completed in 2002. This scheme was undertaken to create a series of scrapes and bunds to retain water and recreate the perfect conditions for bog flora such as cotton grass and sphagnum mosses to re-colonise the bogs.
It was the former site of a large Royal Ordnance Factory. Today, it is managed by Cheshire County Council as a country park and an educational nature reserve. It was designated a Site of Special Scientific Interest in 1986. Risley Moss, together with Astley and Bedford Mosses
Astley and Bedford Mosses
Astley and Bedford Mosses are areas of peat bog south of the Bridgewater Canal and north of the Liverpool and Manchester Railway in Astley and Bedford, Greater Manchester, England. They are among the last remaining fragments of Chat Moss, the raised bog that once covered a large area of south...
and Holcroft Moss, is also a European Union
European Union
The European Union is an economic and political union of 27 independent member states which are located primarily in Europe. The EU traces its origins from the European Coal and Steel Community and the European Economic Community , formed by six countries in 1958...
designated Special Area of Conservation
Special Area of Conservation
A Special Area of Conservation is defined in the European Union's Habitats Directive , also known as the Directive on the Conservation of Natural Habitats and of Wild Fauna and Flora...
, known as Manchester Mosses.
Features
The main feature of Risley Moss is the large peat bog flats, overlooked by two observation points: a large watchtower, ideal for bird watching, and a smaller lookout. These points have additional information inside relating to bird species and landscape layouts. The Moss also has several smaller huts located inside the forested area for bird watching and nature enthusiasts.Tours across the flats and nature reserve are available from the main information centre and are undertaken by local rangers.
In addition to the natural features and landscape, there are several sculptures around the site, usually with a natural theme.