With the rapid development of population and economy , water resource has been excessively exploited and the balance of ecosystem has been seriously changed and destroyed . the problem of water resource pollution and shortage is becoming more and more serious . the contradiction between exploitation water resource and environment is becoming more and more acute 隨著人口與經(jīng)濟(jì)的迅速發(fā)展,人類過度的開發(fā)水資源生態(tài)空間,生態(tài)系統(tǒng)的平衡受到了嚴(yán)重地改變和破壞,水環(huán)境污染和水資源短缺問題日益嚴(yán)重,水資源開發(fā)利用與生態(tài)環(huán)境的矛盾愈顯突出。