水文地质单元(hydrogeological unit)是根据水文地质结构、岩石性质、含水层和不透水层的产状、分布及其在地表的出露情况、地形地貌、气象和水文因素等划分的,具有一定边界和统一补给、径流、排泄条件的地下水分析区域。
从整个地下水文地质单元特征来看,有其独特的发育形成条件。
From groundwater hydrological geological unit, it had a unique formation conditions of the development.
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;
Thirteen hydrogeological units have been put forward: 1)Altai and its pediment region;
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。
This article makes the division of the hydrogeological units in northwest China principally according to the climate, topography and geotectonics.
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