2015-2019年全国地质灾害发育的分布特征

Distribution Characteristics of Geological Disaster Development in China from 2015 to 2019

基于国土资源部发布的2015—2019年《全国地质灾害通报》、中国统计年鉴等相关内容,对比分析近5年研究区域内地质灾害得出:(1)地质灾害发育比例中滑坡灾害占比最大,发育数量最多,地面塌陷数量未来有上升趋势。(2)小型地质灾害发生数量过多的年份由此造成的经济损失和人员伤亡也会相应增大。(3)在空间分布上,地质灾害主要集中在西南地区和西北地区。

Based on the National Bulletin of Geological Hazards(2015-2019),China Statistical Yearbook and other relevant contents released by the Ministry of Land and Resources,and through the comparative analysis of geological disasters in the study area in the past five years,it is concluded that:(1)landslide disasters account for the largest proportion and the largest number of geological disasters in the development proportion.The number of ground subsidence will increase in the future.(2)In years with excessive number of small geological disasters,the resulting economic losses and human casualties will increase correspondingly.(3)The spatial distribution of geological hazards is mainly concentrated in the southwest and northwest areas.