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- W2353682118 abstract "In arid and semi-arid areas of northern China,lakes have been facing a number of problems such us dried-up,shrinkage and serious water pollution.Non-scientifical utilization and management of the lake resources has resulted in water shortage and water quality degrada-tion.To keep rational water level and self-purification ability of the lakes is the guarantee for scientific and sustainable utilization of the water resources.The calculation method of the mini-mum eco-environ mental water demand for lakes is the basic precondition to keep rational uti-lization and management of the lake ecosystem.Based on the analysis of the crisis of lake eco-environment and the obstacles to the solution of the problems in China,the concept and calcula-tion methods about the minimum eco-environmental water demand for lakes have been analyzed.According to the feature s and actual situation of the minimum eco-environmental water demand for lake ecosystem s we put forward the calculaton methods:(1)water quantity balance method;(2)exchange water cycle method;(3)minimum water level method;and(4)function method.The results show that the function method can reflect exactly the relationship s between the healthy state and the minimum eco-environmental water demand of the lake ecosystems.This can offer technical support against the trend of eco-environmental deterioration and for the restoration of the lake ecosystems.These different methods should be used for different kinds of and different eco-environmental characters of the lake ecosystems.To define the minimum eco-environmental water demand for lakes,it is possible to offer scientific support for lake ecosystem management and restoration.In northern China the lake ecosystems will get into the new period of scientific management and ecological restoration after the minimum eco-environmental water demand for lake ecosystem s is determined and implement eco-environmental construction planning is imple-mented." @default.
- W2353682118 created "2016-06-24" @default.
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- W2353682118 date "2002-01-01" @default.
- W2353682118 modified "2023-09-25" @default.
- W2353682118 title "A study on the calculation methods of the minimum eco-environmental water demand for lakes" @default.
- W2353682118 hasPublicationYear "2002" @default.
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