《中华人民共和国水法》的颁布实施使水利工作进入一个以“注重效益,全面管理,协调各方,依法治水”为特点的新时期。水文是对地表水、地下水的数量和质量在时间和空间上的变化及其规律进行勘测、调查、研究、评价的水信息工作。它是水利和一切与水资源有关联的国 The promulgation and implementation of the “Water Law of the People’s Republic of China” put the work of water conservancy into a new era characterized by “focusing on efficiency, comprehensive management, coordination of all parties and water control according to law”. Hydrology is the water information work of surveying, investigating, researching and evaluating the variation and regularity of the quantity and quality of surface water and groundwater in time and space. It is water and all water-related countries