抄録
The shortage of water is emerging as a key obstacle for continuing economic development in North China. In basin of the Yellow river-the second longer river in China, the water flow has been cut off almost every year in the low reaches from 1990, having adverse impacts not only on agriculture but industry and life of citizen in this region. This paper takes up the basin for a case study to analyze the situation of water cutoff and its causes in the macro viewpoint. Firstly, the characteristics of water cutoff were analyzed. Secondly, the distribution of water resources was estimated based on the IIASA mesh data using Thornthwaite model. Then, the amount of the water used by agriculture, industry and life of citizen was also calculated. Based on water supply-and-demand balance evaluation, the water cutoff in the low reaches could be explained as the decreasing
