摘要
本文主要根据气候、地形和大地构造进行了西北地区水文地质单元的划分。共计划分出十三个水文地质单元:1)阿尔泰山及其山前地区;2)准噶尔盆也;3)天山山间盆地;4)塔里木盆地;5)柴达木盆地;6)青南高原,7)阿拉善高原;8)河西走廊;9)青东陇—中高原;10)贺兰六盘山及宁夏平原;(11)陕甘宁盆地;12)关中平原;13)秦巴山地。
This article makes the division of the hydrogeological units in northwest China principally according to the climate,topography and geotecto- nics. Thirteen hydrogeological units have been put forward: 1)Altai and its pediment region; 2)Zongor basin; 3)Intermontane basins in Tianshan; 4)Tarim basin; 5)Chiadam basin; 6)Southern Qinghai plateau; 7)Alashan platcau; 8)Hexi corridor; 9)Eastern Qinghai-Central Gansu plateau; 10)Helanshan-Liupanshan and Ningxia plain; 11)Shan-Gan-Ning basin; 12)Central Shanxi Plain; 13) Qinling-Dabashan mountains. Afterwards, on the summarization of the hydrogeological conditions in northwest China, the hydrogeological units delimited in this article can be based on to make the consideration seperately.
