我国西部地区地质灾害风险区划研究

Study on Risk Regionalization of Geological Disaster in Western Region of China

我国西部地区的地质和地形条件非常复杂 ,是地质灾害多发的地区。因此 ,有必要对我国西部地区进行地质灾害风险区划研究 ,以预测、预警这个地区地质灾害。研究表明 :极高风险区的县 (市 )占西部地区总面积的0 2 8%。高风险区的县 (市 )占西部国土面积的 6 71%。中低风险的 796个县 (市 )占西部国土面积的 93 0 1%。

In order to forecast and early warning the geological disaster in western region, the paper argues the necessity and importance for researching the risk regionalization of geological disaster, where the disasters often happen due to the complex geology and terrain. The research shows that the counties (cities) account for 0.28% the total areas of the western region in the extremely high risk region; 6.71% the western land areas in the high risk region; 93.01% the western areas in lower-middle risk region (about 796 counties).