乐昌市地质灾害时空分布  

Characteristics on Spatio-temporal Distribution of Geological Disasters in Lechang City

作　　者：曾爱花[1] 徐义洪 杨地长 Zeng Aihua;Xu Yihong;Yang Dichang(East China University of Technology,Fuzhou Jiangxi 344000;The third geological brigade of Guangdong Geological Bureau,Shaoguan Guangdong 512000,China)

机构地区：[1]东华理工大学,江西抚州344000 [2]广东省第三地质大队,广东韶关512000

出　　处：《国土与自然资源研究》2025年第3期76-79,共4页Territory & Natural Resources Study

基　　金：惠州市地质灾害详细调查项目(HXHTHZ-2017-103)。

摘　　要：乐昌市地质灾害时常发生,人类生活及经济活动受到限制。本文通过对乐昌市地质灾害类型、时空分布特征及成因的分析,发现乐昌市地质灾害主要发生在低山及丘陵区,灾害发生类型与地层岩性密切相关,以突发性地质灾害为主(滑坡、崩塌、地面塌陷等),地质灾害主要发生在3~9月,主要分布在两江镇、大源镇、乐城街道等丘陵区,地质灾害与降雨密切相关,具有明显的季节性,主要集中在每年3~9月的雨季。该研究为预防地质灾害、减少其对社会经济造成的损失提供了详细资料。Geological disasters often occur in Lechang City,and human life and economic activities are restricted.Based on the analysis of the types,characteristics on spatio-temporal distribution and causes of geological disasters in Lechang City,it is found that the geological disasters mainly occur in the low mountains and hilly areas,and the types of disaster are closely related to the stratigraphic lithology.Mainly sudden geological disasters(landslide,collapse,ground collapse,etc.),geological disasters mainly occurred from March to September,mainly distributed in Liangjiang,Dayuan,and Lecheng Town and other hilly areas,geological disasters are closely related to rainfall,with obvious seasonality,mainly concentrated in the rainy season from March to September every year.The study provides detailed information for preventing geological disasters and reducing their losses to social economy.

关 键 词：乐昌市 地质灾害 时空分布特征 

分 类 号：P694[天文地球—地质学]