水资源保护Issue(4)：37-41,5.DOI:10.3880/j.issn.10046933.2015.04.007
基于河道径流可变区间的河流水资源可开发利用率分析
Analysis of exploitable rate of river water resource based on variable interval of river runoff
摘要
Abstract
In order to determine the exploitable rate of river water resource by hydropower projects, we established a variable interval calculation method for river runoff of period distribution to calculate the river minimum ecological water demand and the maximum river torrent.Taking Lhasa River in Tibet, China as an example, the minimum ecological water demand and the maximum river torrent were calculated.The results show that the minimum ecological water demand and the maximum river torrent of Lhasa River are 29.5~328.3 m3/s and 95.1~1 673.4 m3/s, respectively.Compared with the constraints of minimum ecological water demand, the constraints of variable interval of river runoff decrease the water resources exploitable rate by the regulation development of water and electricity in Lhasa River from 60.2% to 18.7%.The author of this paper thinks that as for the seasonal rivers which have a significant characteristics of seasonal abundance and dry runoff, large-scale water projects should be constrained by the river variable interval during its balance to the runoff seasonal distribution, especially by the increasable interval of river runoff under the maximum torrent constraint in the dry season.关键词
最小生态需水/最大洪流/河道径流可变区间/水资源开发利用率/拉萨河Key words
minimum ecological water demand/maximum torrent/variable interval of river runoff/exploitable rate of river water resource/Lhasa River分类
建筑与水利引用本文复制引用
张锦,徐琳瑜..基于河道径流可变区间的河流水资源可开发利用率分析[J].水资源保护,2015,(4):37-41,5.基金项目
环保部公益性行业科研专项（201209032）；国家科技支撑计划 （）
