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China's geological structure is very complex, extremely changeable mountain ecological environment, create a basic material basis for these disasters for the mountain, thus occur widely in mountain disasters and frequent activity, China has become the world's one of the most serious national mountain hazards. Zhejiang is located in China's eastern coastal landforms mainly mountainous and hilly, a subtropical monsoon climate zone, annual rainfall is abundant, and concentrated in the rainy period \Zhejiang unique natural conditions, coupled with the recent years of mountain resources and irrational use, leading to the destruction of the ecological environment, making a large number of mountain hazards occur frequently, a serious threat to the security of life and property of the mountain people. In order to effectively reduce the loss due to mountain hazards, the mountain environment stability evaluation and the mountain environment disaster prevention zoning, it is particularly important. Completion of Mountain Hazards and mountain environment constitute a single factor the mountain environment underlying database established on the basis of this study, ARC / INFO, MapInfo and MEMIS technical support, such as elevation, slope, aspect and soil type IV the factors Layer the space stacked generate evaluation unit Figure, as elevation, slope, aspect, soil type, land use and road impact Involved Factors in the selection of information model index and model the Qingyuan County mountain environment stability evaluation. And to the completion of the the mountain environment the stability rating Pictured foundation of information model complete the mountain environment disaster prevention divisions. The specific research topics include: 1. ARC / INFO support, topographic maps (including the space stacked, elevation, slope map, aspect) and soil maps, to generate land type unit, and as the mountain environmental stability evaluation unit. Meanwhile, with natural geographic evaluation unit for comparative analysis. 2. Using analytic hierarchy process, coefficient of variation, comprehensive weighting method combined with expert advice, screening out \a factor as the mountain environmental stability evaluation the Involved Factors Experts - Analytic Hierarchy Process and variation coefficient method to determine the weights of each factor. 3. Selection of information model index and model for the evaluation of the stability of the mountain environment, the mountain environmental stability of Qingyuan County is divided into four levels, respectively, a (stable area), two (basically stable area) \\Completion of the geological disasters in Qingyuan County and the first two figure of \4. Of information model completed the Qingyuan County mountain environment stability rating Pictured foundation using a combination of qualitative and quantitative indicators, completed Qingyuan County mountain environment, disaster prevention and zoning. Qingyuan County is divided into a stable region in northern and eastern part of the basic stability of the area \At the same time, each of the \secondary development of the system in addition to have a general GIS functions can also complete the mountain environment stability evaluation and the mountain environment disaster prevention zoning. following novelty in this study: 1. Zhejiang Qingyuan County mountain disasters land type unit characteristics, terrain and soil factors stacked generated as a mountain environment the stability evaluation unit. more \using a combination of qualitative and quantitative evaluation based on the completion of the comprehensive index mountain environment, disaster prevention and zoning, scientific and operability. 3 independent development of Qingyuan County Mountain Environmental Management Information System, a mountain environment stability dynamic The zoning function evaluation and prevention, for the national initiative.
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