黄河流域粗泥沙集中来源区径流及输沙特征分析  

The Changing Characters of Water and Sediment in Coarse Sand Source Regions of the Loess Plateau

作　　者：汪丽娜[1] 穆兴民[2] 张晓萍[2] 王炜[2] 

机构地区：[1]中山大学水资源与环境研究中心 [2]中国科学院教育部水土保持研究所

出　　处：《干旱区资源与环境》2008年第10期60-65,共6页Journal of Arid Land Resources and Environment

基　　金：国家"973"项目(2007CB407203);中国科学院"西部之光"和中国科学院西部行动项目(KZCX2-XB2-05-03)资助

摘　　要：本研究以黄土高原粗泥沙集中来源区面积最大且连续的区域（即北起皇甫川流域南至佳芦河流域地区）为研究对象，以1960～1999年为研究时段，分析了该区内水沙变化特征。结果表明：降水变化的作用和人类活动的影响已交叉融合在一起，使得该区降雨量、径流量、输沙量呈现减少的趋势。在同一时段内，皇甫川流域的降雨损失量最大，而秃尾河流域的降雨损失量最小。40年间皇甫川和佳芦河流域的洪峰和沙峰出现的月份基本上吻合，而孤山川、窟野河和秃尾河流域的输沙量最大的月份同时或滞后于径流量最大的月份。孤山川流域的水沙异源，长时段序列又进一步掩盖了其水沙关系，使得该流域的水沙关系较差，其余4条流域的水沙关系较好，且呈正相关增长趋势。The change characters of runoff and sediment from Huangfuchuan to Jialuhe catchments, of coarse sand source regions of the Loess Plateau from 1960 to 1999 were analyzed. The results were as follows： rainfall,runoff and seiment showed declining trend which owing to the synthetical influence of precipitation changes and human being activity. In the same period, among the five catchments, the maximal rain loss accurred in Huangfuchuan, and the catchment with minimal rain loss was Tuweihe. Among were almost simultaneously appeared that with runoff peak in H the forty years, the monthes with the sand peak uangfuchuan and Jialuhe. Most of the monthes with sand peak showed simultaneous or later than that with sand peak in Gushanchuan, Kuyehe, and Tuweihe. The different sources of the runoff and sediment and the long time course covered the water and sand relation in Gushanchuan cathcment＇s, so the correlativity between runoff and sediment in Gushanchuan appeared not to be obvious. But the other four catchments the runoff seemed to be well fitted with the sediment.

关 键 词：径流 输沙 粗泥沙集中来源区 黄土高原 

分 类 号：P332[天文地球—水文科学]