To understand the influence of active faults on the distribution of groundwater,based on the data of 635 wells deep to bedrock in Yunnan Province and Yunnan provincial active fault map at a scale of 1:4000,000,the controlling effect of the ac-tive fault and rivers on the well distribution and water storage capacity was investigated using statistical analysis. The results indi-cated that the investigated wells distributed mainly on the faults of NNE-SSW and NNW-SSE directions. The nearer the well is to a fault,the more developed the fracture in the well is as well as the larger the well yield is. In addition, the direction of the rivers that close to wells most mainly distribute in the directions of NNE-SSW and NNW-SSE,a coincidence with main strikes of faults. The closer to a river the well is,the larger unit inrush is,showing that the bedrock fissure water of this region is con-trolled by faults.%为了解云南地区活动断裂对地下水分布的影响,根据2010年云南省抗旱工程的635个基岩抽水井资料和1:400万云南地区活动断裂数据库,采用统计方法分析该地区活动断裂及河流对抽水井分布及富水程度的控制作用.研究发现:抽水井主要分布在走向为NNE-SSW和NNW-SSE的断裂带上,且距离断裂带越近,抽水钻孔内裂隙越发育,单位涌水量越大.此外,距离抽水井最近的河流走向亦以NNE-SSW和NNW-SSE为主,与断裂的主要走向一致.抽水井距离河流越近,其单位涌水量越大,进一步说明断裂对基岩裂隙水的控制作用.
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