乌蒙山昭通地区玄武岩地下水赋存规律及开发利用

乌蒙山区是新一轮扶贫开发攻坚的主战场之一，其中昭通地区长久以来面临取水难、用水难的问题。通过地面调查、水文地质试验、测试分析等综合研究手段，查明了该地区峨眉山玄武岩分布面积仅次于可溶岩，占21.52%，以面状覆盖和条带展布两大特征出露，裂隙的发育和较平缓的地形地貌条件为地下水的富集提供了良好基础，泉点数量多、分布广且水质总体良好，Ⅲ类及以上地下水达到89.29%，适宜生活饮用，对于农户居住分散的地区具有重要意义。研究成果为指导地方寻找优质饮用水源，解决乌蒙山连片贫困缺水区吃水难题提供依据。

Occurrence regularity and exploration and utilization of groundwater in Zhaotong area of Wumeng Mountain

Wumeng Mountain area is one of the main fields of the new round of poverty alleviation and development in China.The scattered farmers in Zhaotong area have long been faced with the problem of water intake and water use.On the basis of the 1:50000 hydrogeological survey project of Wumeng Mountain and through the means of ground investigation, hydrogeological test, test analysis and comprehensive research, the authors found that the distribution area of Emeishan basalt in this area is only next to soluble rock, accounting for 21.52%. It is exposed with two major characteristics of areal coverage and stripe distribution.The conditions of development of fractures and relatively gentle landform provide good prerequisite for groundwater enrichment.The number of springs is large, the distribution is wide, and the water quality is generally good.The groundwater of class Ⅲ and above reaches 89.29%, which is suitable for drinking.It is of great significance for water supply in areas where farmers live scattered.This paper aims to provide a reference for the local government to find high-quality drinking water source and solve the problem of draught in the contiguous poverty-stricken areas of Wumeng Mountain.