黑河径流的沿程分布格局变化研究  

Changes of Runoff Distribution Transformation of Heihe River

作　　者：张小琴 刘进琪[1,2] 

机构地区：[1]甘肃省水文水资源勘测局,兰州730094 [2]中国科学院寒区旱区环境与工程研究所,兰州730000

出　　处：《水利科技与经济》2009年第11期959-961,970,共4页Water Conservancy Science and Technology and Economy

基　　金：国家自然科学基金项目(90702001);甘肃省科技项目(2007Y0410)

摘　　要：基于内陆河流域河川径流在河流坐标上的演变规律,采用径流的溯源性与零水资源尺度两个概念,分析黑河径流的沿程分布变化。结果表明：从1956-1970年、1971-1985年和1986-2000年3个时段河川径流均值看,地表水资源存在着出山口以后的各断面河川径流的溯源变化;存在着水资源整体集中度从下游向上游缩进的趋势;莺落峡与正义峡区间的径流延时分布概率在40 m^3/s以上显著不同。Based on the river runoff evolvement rule on the drainage area coordinate in inland rivers in the Heihe River, this paper analyzed the transformation of surface water distribution by the idea of trace back of the runoff and yardstick of zero water resource. The results show that by the calculation of the average runoff during the course of 1956 - 1970,1971 - 1985 and 1986 - 2000, there is obviously trace back of runoff of surface water resource on each profile which is partition by the mountain pass in inland rivers; The water resource wholly shows the contractive tendency from downriver to upper reaches; and the contractive scale is distinct impacted by human activities such as land use; there is obviously difference that of time - dalay curve at Zhengyixia and Yingluoxia gorges, when Q 〉 40 m^3/s.

关 键 词：径流溯源性 零地表水资源尺度 黑河 

分 类 号：TV882[水利工程—水利水电工程]