降雨入渗补给量的确定,在地下水资源评价中占有重要的地位。因为浅层地下水的资源主要来自下列三部分:①降雨入渗量,②地表水补给量,③消耗地下水的贮存量。对干大面积的浅层地下水资源来说,后二项所占的数量相对不大,而降水入渗量则占地下水资源的大部分。因此,为了准确地进行地下水资源评价,准确地求得降雨入渗量是一个重要的问题。随着资源评价精度的提高,不仅需要求得全年的降雨入渗量,而且希望求得每次降 Determination of rainfall infiltration recharge, in groundwater resources assessment plays an important role. Because shallow groundwater resources come mainly from the following three parts: ① rainfall infiltration, ② surface water recharge, ③ groundwater consumption reserves. For dry, large-area shallow groundwater resources, the latter two are relatively small, while the amount of rainfall infiltration accounts for the bulk of groundwater resources. Therefore, in order to accurately evaluate the groundwater resources, it is an important issue to accurately calculate the rainfall infiltration. With the improvement of resource evaluation accuracy, it is not only necessary to obtain the rainfall infiltration throughout the year, but also to obtain each drop