广西岩溶内涝分类及典型治理方案OA

With a total area of 96,000 km2,the karst mountain areas of Guangxi are widespread in peak-cluster de-pressions,peak-forest(peak-cluster)valleys,and karst plains.These areas have relatively closed catchment topog-raphies with poor drainage,making them prone to internal flooding that severely affects the daily lives of local resi-dents.Karst waterlogging has thus become one of the serious natural disasters in Guangxi.Based on the collected data related to karst waterlogging,this paper proposes criteria for the identification and classification of waterlog-ging-affected zones in Guangxi's karst areas,taking into account the key factors such as the formation mechanism of waterlogging in karst areas,inundation duration,affected population,cultivated land area,regional particularities,and development/utilization potential.On this basis,corresponding mitigation measures are proposed.