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.