黄河流域地表水耗损分析

Analysis on Yellow River Surface Runoff Consumption

在总结分析黄河流域1956～2000年地表水耗损量逐年过程变化特点的基础上,根据黄河流域大型灌区如上游宁夏引黄灌区、中游关中灌区、下游引黄灌区地表水耗损量结构现状,研究了黄河流域用水量结构调整的思路并论证了其实施可行性,分析了黄河流域地表水供、用、耗、排关系,这对于水资源供需平衡分析、水资源优化配置、维持河流健康生命等方面具有实际意义.

Based on the summarization of annual surface runoff loss processes from 1956 to 2000, and current status of the surface runoff loss mechanisms of the large irrigated areas such as Ningxia in the upper, Guanzhong in the middle and irrigated area in the lower Yellow River, this paper analyzes the characteristics of the structural change in the basin runoff loss of the Yellow River, discusses the concept of the structural adjustment of runoff utilization quantity of the Yellow River, and explains the feasibility of putting it into practice. The analysis of the relationships among water supply, water utilization, water loss and water drainage will have much meaning in balancing supply-demand of water resources and the superior allocation scheme of water resource and so on. In addition, the basic data used in this paper to calculate the surface runoff loss etc. are the same as the data used for survey and assessment of water resources in the Yellow River Basin from 1956 to 2000.