The flows of the world's rivers are increasingly being modified through impoundments such as dams and weirs, abstractions for agriculture and urban supply, maintenance of lows for navigation, drainage return flows, and structures for flood control. These interventions have had significant impacts, reducing the total flow of many rivers and affecting both the seasonality of flows and the size and frequency of floods. In many cases, these modifications...
更多显示
详细
-
2003/03/01
-
工作文件（编号系列）
-
26320
-
1
-
1
-
2010/07/01
-
Disclosed
-
Environmental flows : concepts and methods
-
review of water