资源县典型小流域山洪地质灾害成因分析

Analysis of causes for mountain flood geological hazards in typical small watersheds of Ziyuan County

广西是全国7个山洪地质灾害多发区之一,山洪地质灾害的发生存在着一定的致灾因子和孕灾环境。结合历史山洪地质灾害情况,对资源县典型小流域山洪地质灾害形成原因进行了分析,结果认为,导致山洪地质灾害发生的影响因素主要包括:降雨、植被、坡度、坡向、地层岩性、人类活动和高程等,这些因子相互作用,引发了滑坡等山洪地质灾害。

Guangxi is one of the seven mountain torrents and geological disaster-prone areas in China. There exist certain hazard-inducing factors and environment. Combined with the records of historical geological hazards resulted from mountain floods, analysis was made on the causes for the mountain flood geological hazards occurred in the typical small watersheds of Ziyuan County, based on which it is concluded the main influencing factors include rainfall, vegetation, slope, aspect, stratum lithology, human activities and elevation etc. These factors interact and cause mountain flood geological disasters such as landslides.