Chuxiong, Yunnan Province, Mountain Disaster Risk Management

With the development of economy construction, the further impact of human activities on geological environment in the mountainous areas has exacerbated the occurrence of geological hazards in these areas,such as collapses, landslides, debris flow,etc,which has caused a serious threat to the life and property safety of people in these areas,and brought and impact to the economic development of Yunnan areas.There is strong subjectivity and uncertainty in the traditional geological hazards zonation.It is affected by the knowledge level,operational level and experience of geological staff,and with low level of quantification.In additions,its ability of processing data is limited,and needs much artificial data processing work,and thus its work efficiency is very low.In light of these above problems,GIS technology will be applied to Geological Hazards Zonation.Through the combination of GIS and mathematical models,the level of quantification will be further enhanced and the work efficiency will be improved.According to the level of risk to made targeted recommendations and measures to reduce or avoid the mountain of disasters on people's lives and property damage, and promote socio-economic and ecological sustainable, healthy development.The full text of four parts:fist of all,introduction the main topics of this artical describes the background of the significance of the status quo at home and abroad and the major research studies and research methods.Introduces the risk assessment of geological disasters in the relevant theoretical research.Including the concept of geological disasters in the basic steps to risk assessment of geological disasters in the content .Sescendly,under the guidance of the theory to debris flow in Chuxiong for a example,use the GIS technology applied to disaster risk management in the mountain,through the combination of GIS and mathematical models of risk assessment of debris flow in Chuxiong and regional planning.From the basic conditions for debris flow and induced the formation of dynamic analysis, combining the findings of regional debris flow, extraction slope, aspect, terrain height, rainfall and other natural factors and population density, GDP per unit area, unit area of roads and other socio-economic factors of the road , the use of GIS software to overlay and statistics, factors both qualitative and quantitative methods in different parts of the region interpretation of landslides and debris flows the size of the likelihood obtained in Chuxiong safe area, low risk areas, medium risk areas, risk of severe The most serious danger area and the five synthetic zoning district.Thirdly, this paper partitions the risk of debris flow results are verified, the verification of qualified district on the basis of the results presented under the risk of debris flow in different areas of control risk mitigation strategies. Finally, in the risk based on the partition of Chuxiong Prefecture mountain hazards risk management model was established and innovative insurance mechanisms will be introduced to the mountain disaster insurance in the past, individuals and government by calculating the input and output lines of insurance, analysis of the effectiveness of the insurance investment, so that the insurance in the mountains disaster to play the role of risk transfer.