作　　者： ; ; ; ;

机构地区： 湛江师范学院

出　　处： 《安全与环境工程》 2014年第3期55-59,共5页

摘　　要： 梅州市是广东省地质灾害易发和多发地区之一,灾害类型多,发生频率高,人员伤亡和经济损失较大,且灾害发育呈现一定的地域分布特征。本文通过对梅州市地质灾害伤亡人数、直接经济损失和发生频率的统计,引入突变理论的突变级数法,建立了地质灾害灾度的评估指标体系和等级划分标准,并对梅州市地质灾害灾度进行了评估。评估结果表明:梅州市地质灾害灾度从大到小的排序为五华县、兴宁市、大埔县、平远县、梅县、丰顺县、蕉岭县、梅江区。 Meizhou City is one of the areas where geological hazards are prone to occur in Guangdong Province. Various types of geological hazards develop regionally with a high frequency; as a result, the life loss and economic loss are very high. According to the statistics for the casualties, direct economic losses and frequency of the geolog- ical hazards in Meizhou,this paper introduces catastrophe theory, puts forward assessment index system and classi- fication standards and assesses the geological hazard degrees in Meizhou City. The results show that, from big to small, the order of the geological hazard degrees is. Wuhua County, Xingning City, Dabu County, Pingyuan County, Mei County,Fengshun County,Jiaoling County, Meijiang District.

关 键 词： 灾度 突变理论 突变级数法 地质灾害评估 梅州市

领　　域： [环境科学与工程] [环境科学与工程]