Landslide integrated characteristics and susceptibility assessment in Rongxian county of G

Landslide integrated characteristics and susceptibility assessment in Rongxian county of

Guangxi, China

LIAO Li-ping;ZHU Ying-yan;ZHAO Yan-lin;WEN Hai-tao;YANG Yun-chuan;CHEN Li-hua;MA Shao-kun;XU Ying-zi

【期刊名称】《山地科学学报（英文版）》 【年(卷),期】2019(016)003

【摘要】Landslides distribute extensively in Rongxian county,the southeast of Guangxi province,China and pose great threats to this county.At

present,hazard

management

strategy

is

facing

an

unprecedented challenge due to lack of a landslide susceptibility map.Therefore,the purpose of this paper was to construct a landslide susceptibility map by adopting three widely used models based on an integrated understanding of landslide's characteristics.These models include a semi-quantitative method (SQM),information value model (IVM) and logistical regression model (LRM).The primary results show that (1) the county is classified into four susceptive regions,named as very

low,low,moderate

and

high,which

covered

an

area

of

13.43％,32.40％,31.19％ and 22.99％ in SQM,0.86％,26.82％,44.11％,and 28.21％ in IVM,9.88％,17.73％,46.36％ and 26.03％ in LRM;(2) landslides are likely to occur within the areas characterized by following obvious aspects:high intensity of human activities,slope angles of 25°～35°,the