地下水是水资源的重要组成部分,是干旱、半干旱地区用水的重要来源,有时甚至是唯一的水源。地下水具有水质好、分布广、供水量稳定、可持续利用的时间长等特点,因此自古以来就得到了广泛的应用。我国早在先秦时期就已经利用地下水灌溉。《庄子·天地》和《说苑·反质》都记载着春秋时期 Groundwater is an important part of water resources and an important and sometimes even the sole source of water for arid and semi-arid areas. Groundwater has good water quality, wide distribution, stable water supply, long-term sustainable use and other characteristics, it has been widely used since ancient times. As early as the pre-Qin period in our country, groundwater has been used for irrigation. “Chuang Tzu Heaven and Earth” and “Said Court, anti-quality” are recorded in the Spring and Autumn Period