基于GIS技术的川滇地区干旱灾害风险评价与区划  

The Risk Assessment and Regionalization of Drought Disaster in Sichuan-Yunnan Region Based on the GIS technology

作　　者：杜华明[1] 王建华[1] 陈浩[1] 熊苗[1] 邓小菲[1] 屈波[1] 

机构地区：[1]绵阳师范学院资源环境工程学院,四川绵阳621006

出　　处：《绵阳师范学院学报》2017年第11期98-103,共6页Journal of Mianyang Teachers＇ College

基　　金：绵阳师范学院科研启动项目"西南地区自然灾害风险识别;评价及管控研究"(QD2016A001)

摘　　要：为了掌握川滇地区干旱灾害空间分布格局,采用熵组合权重、自然灾害风险指数法对川滇地区干旱灾害进行了风险评价与区划研究.研究发现:干旱灾害的高、较高风险区主要集中在川西高原和云南大部分地区;高、较高、中等、较低、低干旱灾害风险区分别占川滇总面积的3.02%、29.24%、42.80%、24.93%和0.01%;干旱趋势、致灾因子、孕灾环境是影响干旱灾害风险的主要因素.To get the spatial law of drought disaster,the drought disasters are analyzed in Sichuan-Yunnan region by using methods of entropy weight combination and the natural disaster risk index. Results show as follows：the high risk region of drought disasters is mainly in Western Sichuan Plateau and the southwestern Yunnan region.The highest,high,medium,low,lowest drought disaster risk areas are respectively 3. 02%,29. 24%,42. 80%,29. 24% and 0. 01%. Drought trend,disaster-inducing factors,hazard inducing environment are the main factors affecting the drought disaster risk.

关 键 词：干旱灾害 风险评价 风险区划 GIS技术 川滇地区 

分 类 号：P429[天文地球—大气科学及气象学]