Increasingly serious geo-hazards in Loess Plateau have become a substantial obstacle affecting the local people’s livelihood. According to detailed field geo-hazard survey, on the use of years of geo-logical disasters and weather information, this paper analyzed the relationship between geo- haz-ards spatial and temporal distribution and rainfall in the study area, and pointed out a very close relationship between the occurrence characteristics of geo-hazards and rainfall distribution. It is shown that rainfall is the main excitation factor of landslides, avalanches, landslides and other geo-hazards. Based on the further analysis of development mechanism and law of geological dis-asters in the area, combined with the rainfall data, this paper determined the geological disaster weather warning rainfall threshold. According to the latest information on geological hazards on the basis of meteorological early warning zoning, zoning is established based on rainfall observations and forecasting of geo-hazards in weather forecasting model, and this mode is the main technical methods applied in the test showing that it has a relatively good results in Huangling County, Shaanxi Province, and it is beneficial to the local government departments to take appropriate preventive measures.
Huo, A. and Li, H. (2013) Assessment of Climate Change Impact on the Stream-Flow in a Typical Debris Flow Watershed of Jianzhuangcuan Catchment in Shaanxi Province, China. Environmental Earth Sciences, 69, 1931-1938.