一、水文学的定义和基本概念: 水文学的任务是研究水在自然界中,即在空气中、地表面及地下,水的种种动态、分布、变化及特性等,而在工程中尤以研究天空之雨降与地表水及地下水泊变化规律为主,使能掌握此种规律后,供给工程规划设计与施工以资料。 地球上水的来源是天空所降的雨、雪、雹等,统 First, the definition and basic concepts of hydrology: Hydrology’s task is to study the water in nature, that is, in the air, surface and underground water, water dynamics, distribution, changes and characteristics, and especially in engineering research Rainfall in the sky and changes in surface water and groundwater are the main rules that can be used to provide engineering planning, design and construction information after mastery of such laws. The source of the earth’s water is the rain falling from the sky, snow, hail, etc., system