由地面资料评价一个地区地下水的排泄地段,已经有了一套比较成功的方法。然而,地面方法相对来说所需要的时间长,花钱多,尤其是在那些交通不便,人们难以到达的地区。四十年代以来,随着航空地质工作的发展,借助于航空摄影所提供的地形、植被类型、地层产状以及破裂等资料来分析地下水的补给和排泄关系。虽然这是一种间接的方法,却给予水文 There is already a relatively successful approach to assessing the discharge of groundwater in a region from surface data. However, ground methods are relatively long and costly, especially in areas that are inaccessible and inaccessible to people. Since the 1940s, with the development of aeronautical geology, the groundwater supply and discharge relations have been analyzed with the help of topography, vegetation types, formation occurrences and ruptures provided by aerial photography. Although this is an indirect method, hydrology is given