摘要
温榆河是北京市的主要排水河道,在比较河道生态需水量计算方法的基础上,结合温榆河河道、水资源水环境特点,选择了一种水力学方法R2-Cross法来计算生态需水量;界定了温榆河不同时期的生态目标,分时段进行了生态需水量计算;计算的温榆河生态需水量为3985万m3/a;为温榆河流域水资源优化配置提供了科学依据。
The Wenyu river is a main draining and combined with the characteristics of river channel of Beijing. Based on comparison of the methods course, water source and water environment, the R2- Cross, which is a kind of hydraulic method, was chosen to calculate the ecological water requirements of the Wenyu river. The total ecological water requirements, which were calculated according to the ecological objectives in different periods, were 3 985 m^3/a. The result may provide a reference for optimal allocation of water resources of the Wenyu river Catchment.
出处
《北京水务》
2009年第6期14-17,共4页
Beijing Water
基金
北京市科研项目
项目编号:D0706006000091
关键词
温榆河
城市排水河道
R2-Cross法
生态需水量
the Wenyu river draining channel in urban area R2-Cross method ecological water requirement
