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Effects of surface gold mining on macroinvertebrate communities


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Год выпуска: 2011
Автор: Saulyegul Avlyush
Издательство: LAP Lambert Academic Publishing
Страниц: 108
ISBN: 9783847323525
Описание
 The increase in mining activity has resulted in a long term damage of natural resources in Mongolia such as fine sediment inputs to streams as major contributors to the degradation of freshwater habitats. Previous studies conducted in Mongolia have shown changes of functional feeding group structure at mining sites compared with the non-mining sites. However, the fine sediment impact by open placer gold mining on stream communities is not well understood. In particular, it has been not clear which habitats were most sensitive and which relationships between physical and chemical parameters and macroinvertebrate community structure in Mongolia exist. Therefore an important objective of the research was to quantify the effects of open placer gold mining on macroinvertebrate communities in different habitats in river systems related to the spatial and temporal dimensions of the impact.Generally, the results show that due to their local distribution in rivers and their association to the...

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