改革开放以来,我国经济社会快速发展,城市化率稳步提高,城市水资源供需矛盾等问题日益突出。水资源总量少、利用效率低,用水、排污集中,水安全保证程度不高,洪涝灾害、干旱缺水、水土流失、水污染四大问题在城市化地区相互叠加、相互影响,只有对涉水事务进行统一管理,才能为从 Since the reform and opening up, China’s economy and society have witnessed rapid development, the urbanization rate has steadily risen, and the contradictions between urban water supply and demand have become increasingly prominent. The four major problems of floods, drought and water shortage, soil erosion, water pollution are superimposed on each other and affect each other in the urbanized area, and only on the basis of the low water use efficiency, low water use efficiency, centralized water and sewage disposal, low water security assurance, Water affairs unified management, can be from