UNESCO sets out three functions of a biosphere reserve: conservation, learning and research, and sustainable development. Biosphere reserves aim to create and maintain sustainable communities where people can live and work in an area of high environmental quality; these areas can then provide a blueprint for other areas to learn from. The reserve must be environmentally, economically, and socially sustainable. To achieve this, the reserve oversees management of natural resources, initiatives to develop the local economy, and an effort to reduce inequalities between people.
Biosphere Reserve Partnership is part of an improvement scheme organised by the partnership. The management of the biosphere reserve is undertaken, on behalf of local authorities and stakeholders, by North Devon's Biosphere Reserve Partnership. The group is composed of a number of interested parties including the
Ministry of Defence,
Devon County Council, the
Environment Agency,
Natural England, some educational institutions, national park authorities, representatives from northern Devon commerce and industry, local farmers and fishermen,
Devon Wildlife Trust, and the
National Trust. The decrease in pollution is also hoped to increase beach quality in places such as Instow, which failed water quality tests in 2012, one of only sixteen beaches in the South West to fail. A
Nature Improvement Area proposed to protect and enhance the catchment of the River Torridge—home of
Tarka the Otter in
Henry Williamson's book of the same name—was chosen by the
Department for Environment, Food and Rural Affairs (Defra) as one of twelve nationally important landscapes which will receive funding to restore and recreate ecosystems in the area. Other large projects work to use the natural environment to offset the negative impacts of human activities within the Biosphere. In 2006, the total labour force on Devon farms was 23,240 people, with around 7,953 employed full-time. The reserve is therefore managed carefully with the cooperation of farmers and landowners; as the boundaries of the reserve are the catchment areas of the River Taw and River Torridge, extra precaution must be taken in protecting water supplies from
nonpoint source pollution. Rainwater can accumulate residues of fertilisers, especially
nitrates and
phosphates. Once
leached into the rivers they can affect the
river ecology through
eutrophication, causing damage to plants and animals. This is one of the most pervasive water quality problems in Europe.
Pathogens excreted by animals can also directly affect humans when transported by rainwater to rivers and the sea where people swim. The Biosphere Reserve Partnership provides support to farms that encourage sustainable practices, benefit the environment, and have a good role within the community. == Ecology ==