Based on a comprehensive analysis on features of water resources distribution and some current problems in the utilization

the authors argue that proper exploitation of water resources is a major subject for sustainable development of economy and society. To ensure a sustainable development for China in the 21st century

the authors suggest: ① Hydrology studies should be given priority because they are the bases of water resources researches. ② Water resources should be exploited properly and protected effectively because they are limited.③ Water pollution and hazards should be controlled through long-term planning and scientific management.