随着经济社会发展,水资源已经成为经济社会乃至整个人类生存的制约因素。占全省人口59.7%,工农业总产值72.7%,灌溉面积86.6%的陕西省关中地区,水资源总量仅为78亿m3,人均水资源占有量380m3,相当于全国平均水平的1/8,比国际公认的绝对缺水线500m3还少120m3。随着人口的不断增长 With economic and social development, water resources have become the limiting factor in the economic and social as well as the entire human existence. Accounting for 59.7% of the province’s population, 72.7% of the total industrial and agricultural output and 86.6% of the irrigated area in Shaanxi Province, the total water resources is only 7.8 billion m3 and the water resources per capita is 380 m3, equivalent to one eighth of the national average , Which is 120m3 less than the internationally recognized 500m3 absolute water line. As the population continues to grow