Practical geological technologies facilitating poverty alleviation in Wumeng Mountain area

摘要

The Wumeng Mountain area is located at the juncture of Sichuan,Guizhou,and Yunnan provinces in China.In terms of geotectonic setting,it lies in the suture part of two giant tectonic domains,namely the Tethys-Himalayan sedimentary zone and Circum-Pacific Ocean tectonic domain.There are 38 counties in the Wumeng Mountain area(Fig.1),with a total area of 107×10^3 km^2 and a population of about 23×10^6.The maximum altitude in this area is 4017 m,with the elevation difference between various landforms being up to more than 2000 m.This area suffers frequently occurring natural disasters,severe rocky desertification,unevenly distributed water resources,rare agricultural land per capita,and fragile ecological environment.As a result,it has long been a difficult problem for the local poverty-stricken people to get rich.