用来灌溉农田的地下水,对于它的质量,也有一定的要求。如果用质量不符合要求的水进行灌溉,其结果不但是妨碍了作物的生长,同时还有可能把原来肥美的土地变成不能耕种的盐碱地。为了评价地下水的质量,就必须研究地下水的物理性质和化学成分。地下水的物理性质和化学成 Groundwater used to irrigate farmland also has certain requirements for its quality. Irrigation with poor quality water not only impedes the growth of the crop, but at the same time may turn the formerly rich land into a land that can not be cultivated. In order to evaluate the quality of groundwater, it is necessary to study the physical properties and chemical composition of groundwater. The physical properties and chemical composition of groundwater