摘要
本文对80年代黄河上、中、下游各河段的水沙基本情况及变化特性进行了全面介绍,阐述了气候变化与人类活动各种因素对黄河水沙变化的影响。80年代黄河的天然径流量超过600亿m^3,实测径流量只有400多亿m^3,人类活动是径流量变化的主要原因;80年代平均进入黄河中下游的泥沙量减少到8亿多t,是降雨与流域综合治理共同作用的结果。
The paper overally introduces the basic situation of runoff and sediment in upper, middle and lower reahes of the Yellow River and its law of variation in 1980s, and discusses the influence of climate change and human activity in the basin upon the variation of runoff and sediment of the river. In 1980s, the natural runoff of the river exceeded 60×10~9m^3, while the measured runoff was only 40×10~9m^3 odd. The authors consider that human activity is the main factor leading to runoff variation. The mean annal sediment load entering the middle and lower Yellow River in the period reduced to 800×10~6 tons odd because of the variation of precipitation and comprehensive management of the basin.
出处
《人民黄河》
CAS
北大核心
1992年第4期11-20,共10页
Yellow River
