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PROGRESS AND PERSPECTIVES ON ECOLOGICAL WATER REQUIREMENT IN CHINA

With large scale of human activities for water resources utilization,the water cycle process was changed,in turn the water ecological space was evolved reversely,which emerged in more and more ecological and environmental problems.Then studying on ecological water requirement has been a focus at home and abroad.Compared with foreign countries,there are more complex ecological effects of the water cycle,more serious ecological environment problems,and more severe and urgent ecological water requirement in Ch...