文档介绍：Sept., 2010 ,
J. Resour. Ecol. 2010 1(3) 211-215 Water topic
DOI:.1674-
The Instream Ecological Water Flow Research at
the Lower Reach of Guanting Reservoir
on Yongdinghe River, Beijing
MEN Baohui1*, ZHANG Shifeng2 and XIA Jun2
1 National Engineering Laboratory for Biomass Power Generation Equipment, Renewable Energy Institute, North China Electric Power University,
Beijing 102206, China;
2 Key Laboratory of Water Cycle & Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing
100101, China
Abstract: Yongding River, as the mother river of Beijing city, has been dried up from Sanjia Dian since
1980s. The naked riverbed and the desertification of its both sides play a main role of sandy weather in
spring of Beijing. The Quaternary period underground water of the west Beijing has been drained off,
because of the overload of the underground water plus with no supply pouring into. The ecological system
of Yongding River has severely been devastated. If we want Yongding River to be recovered, we should
clarify the quantity of the most active and the most important water. This paper calculated the instream
ecological flow in three monitored sections of Yongding River Guanting Reservoir with wetted perimeter
method. The three sections are Guanting Reservoir (under