摘要
Longxi loess plateau is situated at the central of Gansu Province;it is one of most drought area in China.Recently,utilizable groundwater has been discovered in the rocky mountainous area within and around plateau,it resolved partly demand of local people and livestock.But there appeared decline of water level and reduction of water yield substantially while exploitation.The paper analyzed reason caused such phenomenon restricting development of this type water,furthermore put forward advices for survey and utilization.