黄河中游河口镇至龙门区间不同岩层对河流粗泥沙贡献的分析  

ANALYSIS ON SEDIMENT YIELDING FROM ERODED STRATA INHEKOU LONGMEN" MIDDLE REACHES OF YELLOW RIVER

作　　者：孙虎[1] 甘枝茂[1] 吴成基 

机构地区：[1]陕西师范大学地理系

出　　处：《中国沙漠》1997年第3期261-268,共8页Journal of Desert Research

基　　金：国家"八五"重点科技攻关项目

摘　　要：对黄河中游河口镇至龙门区间的产沙岩层与河流悬移质输沙进行了耦合平衡分析，确定了该区间各种产沙岩层的产沙数量，并推算出黄土、基岩和风沙对河流粗泥沙（ｄ＞０．０５ｍｍ）的贡献率分别为６１．２％、３４．２％和４．６％。同时，分析了该区间侵蚀产粗泥沙的分布规律。Based on the quasi-equilibrium theory of sediment yield, the eroded strata and suspended sediment of some branches of the Yellow River have been analysed.The results show that all eroded strata are source of sediment yielding and every stratum can cause different yield of suspended sediment in each basin, influenced by environmental factors. In details, among the total yield of coarse sediment in the rivers, there is about 61.2% from loess, 34.2% from rockstratum and 4.6% from sandland. Meanwhile, the distribution law of coarse sediment yielding is also discussed in this paper.

关 键 词：产沙岩层 悬移质 粗泥沙 河流 泥沙 

分 类 号：P333.4[天文地球—水文科学] TV149[水利工程—水文学及水资源]