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A man-made natural paradise
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Videoregistrazioni: DVD

A man-made natural paradise : the reservoir Große Dhünn / Michael Schumacher

RS Film, 2001

  • Non prenotabile
  • Copie totali: 1
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Abstract: It is seldom that areas of untainted natural countryside are found with their original flora and fauna populations in a heavily populated Europe. Only too often has man been responsible for dramatic changes. There are, however, examples of natural landscapes that have been maintained, protected and even re-created by man. One such successful example is to be found around 20 miles east of Cologne. The Greater Dhünn reservoir, maintained by the Wupperverband, has a capacity of 81 million m3 which makes it one of the largest drinking water reservoirs in Germany. 42 million m3 per year are made available as drinking water for the nearby cities of Wuppertal, Solingen, Remscheid, and Leverkusen and for the Bergisch Land generally. 10 million m3 are kept in reserve for emergencies for Düsseldorf and the surrounding area. The construction from 1976-1988, followed by the flooding of the reservoir, caused several smaller hamlets, large areas of agricultural land, around 500 acres of woodland and sections of the Greater and Lesser Dhünn rivers and their tributaries to be submerged. The entire area was dramatically affected and numerous animal and bird species lost their habitats and breeding grounds. To compensate for these effects on the environment, the Wupperverband and the local countryside authorities co-operated on a careful program of countryside regeneration. Within the scope of the Greater Dhünn Reservoir regeneration programme, the area of the reservoir plus a one hundred metre wide strip of land around its edges were declared a wildlife sanctuary. Within this area, numerous schemes contributed towards improving the local biotopes, e.g. the construction of pre-reservoirs and floating islands. In parts, nature has deliberately been left to its own devices. In the summer, when increased water consumption makes the water level in the main reservoir drop, the levels in these pre-reservoirs remains constant. In this way it is possible to prevent the nests around the edges or in the reeds from ending up high and dry – which would make them easy prey for a number of predators. There are a number of floating islands set up for the same purpose. These are used by geese, herons, cormorants, ducks and the great crested grebe as nesting places. Over 80 species of birds have made the reservoir region their breeding grounds – and numbers are increasing. Over 20 of these species are on the so-called red list of endangered species.

A man-made natural paradise
0 0 0
Videoregistrazioni: VHS

A man-made natural paradise : the reservoir Große Dhünn / Michael Schumacher

RS Film, 2001

  • Non prenotabile
  • Copie totali: 1
  • In prestito: 0
  • Prenotazioni: 0

Abstract: It is seldom that areas of untainted natural countryside are found with their original flora and fauna populations in a heavily populated Europe. Only too often has man been responsible for dramatic changes. There are, however, examples of natural landscapes that have been maintained, protected and even re-created by man. One such successful example is to be found around 20 miles east of Cologne. The Greater Dhünn reservoir, maintained by the Wupperverband, has a capacity of 81 million m3 which makes it one of the largest drinking water reservoirs in Germany. 42 million m3 per year are made available as drinking water for the nearby cities of Wuppertal, Solingen, Remscheid, and Leverkusen and for the Bergisch Land generally. 10 million m3 are kept in reserve for emergencies for Düsseldorf and the surrounding area. The construction from 1976-1988, followed by the flooding of the reservoir, caused several smaller hamlets, large areas of agricultural land, around 500 acres of woodland and sections of the Greater and Lesser Dhünn rivers and their tributaries to be submerged. The entire area was dramatically affected and numerous animal and bird species lost their habitats and breeding grounds. To compensate for these effects on the environment, the Wupperverband and the local countryside authorities co-operated on a careful program of countryside regeneration. Within the scope of the Greater Dhünn Reservoir regeneration programme, the area of the reservoir plus a one hundred metre wide strip of land around its edges were declared a wildlife sanctuary. Within this area, numerous schemes contributed towards improving the local biotopes, e.g. the construction of pre-reservoirs and floating islands. In parts, nature has deliberately been left to its own devices. In the summer, when increased water consumption makes the water level in the main reservoir drop, the levels in these pre-reservoirs remains constant. In this way it is possible to prevent the nests around the edges or in the reeds from ending up high and dry – which would make them easy prey for a number of predators. There are a number of floating islands set up for the same purpose. These are used by geese, herons, cormorants, ducks and the great crested grebe as nesting places. Over 80 species of birds have made the reservoir region their breeding grounds – and numbers are increasing. Over 20 of these species are on the so-called red list of endangered species.

Taubergiessen
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Videoregistrazioni: VHS

Taubergiessen : isole verdi in Germania / Beatrice Nolte

[Germania] : [s.n.], [198.?]

  • Non prenotabile
  • Copie totali: 1
  • In prestito: 0
  • Prenotazioni: 0