泥石流是陕南山地主要灾害之一。本文根据野外调查资料,从地质地貌、水文气象、人为因素等诸方面,简要地分析了陕南山地泥石流的时空演变规律和进一步发展趋势,并将区内泥石流分为典型沟谷泥石流、山沟型泥石流、山坡型泥石流和坡面泥石流等四大类型。文中还对陕南山地泥石流发展趋势作了预测,同时提出了预防治理的设想。 Debris flow is one of the major disasters in the mountains of southern Shaanxi. Based on the field survey data, the temporal and spatial evolution rules and further development trend of debris flow in mountainous areas of southern Shaanxi are briefly analyzed from the aspects of geology and geomorphology, hydro-meteorology and human factors. The debris flow in the area is divided into typical gully debris flow, ravine debris flow , Hillside debris flow and slope debris flow four major types. The article also made a forecast on the development trend of debris flow in Shannan mountainous area, and put forward the tentative plan of prevention and control.