义马市地处豫西丘陵山区 ,水资源非常紧缺。据80年代初资源评估资料 ,全市水资源总量仅 1612万ｍ3 ,人均 112ｍ3 ,是全国人均水平的 1/ 2 4。随着国民经济的快速发展及人口的增加 ,需水量不断增大 ,再加上水污染日趋严重 ,水的问题十分突出。市政府进行水利建设和经济规划所采 Yima city is located in western Henan hills, water resources are in short supply. According to the resource assessment data of the early 1980s, the total water resources of the city was only 16,120,000 m3 with a per capita 112m3, which is 1/2 4 of the national per capita level. With the rapid development of the national economy and the increase of population, the demand for water is constantly increasing. In addition to the increasingly serious water pollution, the water issue is very conspicuous. Municipal government water conservancy construction and economic planning adopted