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Westcountry Rivers Trust
The Westcountry Rivers Trust is a waterway society and a registered charity No. 1135007 in the West Country of England, United Kingdom. The Trust was founded in 1995 and aims to protect and enhance the West Country's rivers and streams, and to work with the region's landowners, farmers and the wider community, mainly through education projects. The Westcountry Rivers Trust's approach to river restoration focuses on the entire river catchment and highlights the additional benefits to farmers, water companies, tourism, estuary dredging, and human health. The Trust's work has expanded significantly since its inception, and its approach has been adopted by over 54 river trusts across the UK. Currently, the Trust is delivering the second phase of the South West Water-funded Upstream Thinking project, which aims to improve water quality in rivers and reduce the need for resource-intensive treatment processes. The Trust works with landowners in five important river catchments to r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Camel Feb2008
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague. Rivers are part of the water cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, springs, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drainage Basin
A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, the '' drainage divide'', made up of a succession of elevated features, such as ridges and hills. A basin may consist of smaller basins that merge at river confluences, forming a hierarchical pattern. Other terms for a drainage basin are catchment area, catchment basin, drainage area, river basin, water basin, and impluvium. In North America, they are commonly called a watershed, though in other English-speaking places, "watershed" is used only in its original sense, that of a drainage divide. In a closed drainage basin, or endorheic basin, the water converges to a single point inside the basin, known as a sink, which may be a permanent lake, a dry lake, or a point where surface water is lost underground. Drainage basins are similar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agricultural Productivity
Agricultural productivity is measured as the ratio of agricultural outputs to inputs. While individual products are usually measured by weight, which is known as crop yield, varying products make measuring overall agricultural output difficult. Therefore, agricultural productivity is usually measured as the market value of the final output. This productivity can be compared to many different types of inputs such as labour or land. Such comparisons are called partial measures of productivity. Agricultural productivity may also be measured by what is termed total factor productivity (TFP). This method of calculating agricultural productivity compares an index of agricultural inputs to an index of outputs. This measure of agricultural productivity was established to remedy the shortcomings of the partial measures of productivity; notably that it is often hard to identify the factors cause them to change. Changes in TFP are usually attributed to technological improvements. Agri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biodiversity
Biodiversity or biological diversity is the variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic (''genetic variability''), species (''species diversity''), and ecosystem (''ecosystem diversity'') level. Biodiversity is not distributed evenly on Earth; it is usually greater in the tropics as a result of the warm climate and high primary productivity in the region near the equator. Tropical forest ecosystems cover less than 10% of earth's surface and contain about 90% of the world's species. Marine biodiversity is usually higher along coasts in the Western Pacific, where sea surface temperature is highest, and in the mid-latitudinal band in all oceans. There are latitudinal gradients in species diversity. Biodiversity generally tends to cluster in hotspots, and has been increasing through time, but will be likely to slow in the future as a primary result of deforestation. It encompasses the evolutionary, ecological, and cultural ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Otter, Devon
The River Otter is a river that rises in the Blackdown Hills just inside the county of Somerset, England near Otterford, then flows south through East Devon. It enters the English Channel at the western end of Lyme Bay, part of the Jurassic Coast, a UNESCO World Heritage Site. The Permian and Triassic sandstone aquifer in the Otter Valley is one of Devon's largest groundwater sources, supplying drinking water to 200,000 people. Topography The river's source is north of Otterford, where a stream feeds the Otterhead Lakes: and then through Churchstanton before entering Devon. The river flows through a predominantly rural area, with small cattle, sheep and dairy farms. The largest town in the Otter Valley is Honiton. Tourism and leisure play important roles in the economy. For much of its length, the river flows through two Areas of Outstanding Natural Beauty (AONBs) – The Blackdown Hills AONB (to the north of Honiton) and East Devon AONB (to the south of Ottery St Mary). T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Dart
The River Dart is a river in Devon, England, that rises high on Dartmoor and flows for to the sea at Dartmouth. Name Most hydronyms in England derive from the Brythonic language (from which the river's subsequent names ultimately derive from an original Celtic etymology. As the lower stretches of the river are still covered in ancient oak woodlands, it is accepted that the first element derives from *Dar-, meaning oak (derow'', Welsh ''derw''). However the second element (evident in the hard consonantal termination of ''Dar-t'') is less certain, with postulated etymologies from ''Darwent'' / ''Derventio'' (Sacred place of Oak) or ''Darnant'' / ''Darant'' (Oak stream). The Ravenna Cosmography records a number of Latinised names for the area, ''Devionisso Statio'' and ''Deventiasteno'' may represent corrupted doublets of a ''Statio'' (Station) on a river named ''Derventio''. Although the name ''Derventio'' is otherwise unattested for the river, it is an established etymology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Exe
The River Exe ( ) in England rises at Exe Head, near the village of Simonsbath, on Exmoor in Somerset, from the Bristol Channel coast, but flows more or less directly due south, so that most of its length lies in Devon. It flows for 60 miles (96 km) and reaches the sea at a substantial ria, the Exe Estuary, on the south (English Channel) coast of Devon. Historically, its lowest bridging point was the Old Exe Bridge in Exeter, the largest settlement on the river, but there is now a viaduct for the M5 motorway about south of the city centre. Topography The river's name derives from *Uɨsk, a Common Brittonic root meaning "abounding in fish", and a cognate of both the Irish ''iasc'', meaning "fish", and ''pysg'', the plural word for "fish" in Welsh. The same root separately developed into the English Axe and Esk, the Welsh Usk, though not, as some have claimed, the word ''whisky'', this latter being from the Classical Irish/Gaelic "water" (the fuller phrase being ; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Tamar
The Tamar (; kw, Dowr Tamar) is a river in south west England, that forms most of the border between Devon (to the east) and Cornwall (to the west). A part of the Tamar Valley is a World Heritage Site due to its historic mining activities. The Tamar's source is less than from the north Cornish coast, but it flows southward and its course runs across the peninsula to the south coast. The total length of the river is . At its mouth, the Tamar flows into the Hamoaze before entering Plymouth Sound, a bay of the English Channel. Tributaries of the river include the rivers Inny, Ottery, Kensey and Lynher (or ''St Germans River'') on the Cornish side, and the Deer and Tavy on the Devon side. The name Tamar (or Tamare) was mentioned by Ptolemy in the second century in his ''Geography''. The name is said to mean "great water."Furneaux, Robert. The Tamar: A Great Little River. Ex Libris Press. 1992. Foot, Sarah. ''The River Tamar''. Bossiney Books. 1989.Neale, John. Discovering ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Fowey
The River Fowey ( ; kw, Fowi) is a river in Cornwall, England, United Kingdom. It rises at Fowey Well (originally kw, Fenten Fowi, meaning ''spring of the river Fowey'') about north-west of Brown Willy on Bodmin Moor, not far from one of its tributaries rising at Dozmary Pool and Colliford Lake, passes Lanhydrock House, Restormel Castle and Lostwithiel, then broadens below Milltown before joining the English Channel at Fowey. The estuary is called Uzell ( kw, Usel, meaning ''howling place''). It is only navigable by larger craft for the last . There is a ferry between Fowey and Bodinnick. The first road crossing going upstream is in Lostwithiel. The river has seven tributaries, the largest being the River Lerryn. The section of the Fowey Valley between Doublebois and Bodmin Parkway railway station is known as the Glynn Valley ( kw, Glyn, meaning ''deep wooded valley''). The valley is the route of both the A38 trunk road and the railway line (built by the Cornwall Railw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Treatment
Water treatment is any process that improves the Water quality, quality of water to make it appropriate for a specific end-use. The end use may be drinking water, drinking, industrial water supply, irrigation, river flow maintenance, water recreation or many other uses, including being safely returned to the environment. Water treatment removes contaminants and undesirable components, or reduces their concentration so that the water becomes fit for its desired end-use. This treatment is crucial to human health and allows humans to benefit from both drinking and irrigation use. Water is the most crucial compound for life on Earth, and having drinkable water is a key worldwide concern for the twenty-first century. All living things require clean, uncontaminated water as a basic requirement. Water covers more than 71 percent of the earth’s surface, but only around 1% of it is drinkable according to international standards due to various Contamination, contaminations . Waste water ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South West Water
South West Water provides drinking water and waste water services throughout Devon and Cornwall and in small areas of Dorset and Somerset. South West Water was created in 1989 with the privatisation of the water industry. It was preceded by the South West Water Authority which was formed by the Water Act 1973 as one of ten regional water authorities formed by a merger of various statutory and local authority water undertakings. South West Water is part of the Pennon Group. History South West Water was formed in 1989 when the water industry in the United Kingdom was privatised. It is responsible for the supply of the region's drinking water, the treatment and disposal of sewage, and the protection of inland and bathing waters. It is closely regulated by Ofwat, the Water Services Regulation Authority, being required to conform to stringent United Kingdom and European Union standards. Water from the Littlehampston treatment works, which serves about 162,000 customers in the Torbay ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exmoor National Park Authority
Exmoor is loosely defined as an area of hilly open moorland in west Somerset and north Devon in South West England. It is named after the River Exe, the source of which is situated in the centre of the area, two miles north-west of Simonsbath. Exmoor is more precisely defined as the area of the former ancient royal hunting forest, also called Exmoor, which was officially surveyed 1815–1818 as in extent. The moor has given its name to a National Park, which includes the Brendon Hills, the East Lyn Valley, the Vale of Porlock and of the Bristol Channel coast. The total area of the Exmoor National Park is , of which 71% is in Somerset and 29% in Devon. The upland area is underlain by sedimentary rocks dating from the Devonian and early Carboniferous periods with Triassic and Jurassic age rocks on lower slopes. Where these reach the coast, cliffs are formed which are cut with ravines and waterfalls. It was recognised as a heritage coast in 1991. The highest point on Exmoor is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
