Study on overall management layout of small and medium-sized rivers in Guangxi
The authors studied the 344 small and medium-sized rivers in Guangxi each with a catchment area vari-able within 200～3000 km2.Based on a deep analysis of the characteristics of the rivers,the topography and land-forms of river basins,the features of rainstorm flood and the current status of management,taking into consideration the natural geography,economic and social development pattern and features of flood protection measures,accord-ing to the principles of having similar topography and landforms,the level of economic and social development be-ing basically synchronized,the characteristics of flood formation being generally identical,the priorities of flood con-trol and waterlogging control being similar,Guangxi was divided into four zones of rocky desertification area in northwest Guangxi,riverside area in middle and east Guangxi,mountain area in north Guangxi,coastal plain area in south Guangxi.Combined with zoning of water resources,four zones are subdivided into 11 river systems of Dongting Lake,Nanpanjiang River,Hongshui River,Liujiang River,Yujiang River,Guijiang River,Hejiang River,Xijiang River,rivers in south Guangxi,rivers in west Guangdong,Yuanjiang River-Honghe River.The authors ana-lyze the causes of floods and waterlogging disasters in small and medium-sized rivers of different regions,clarify the key points of flood control,and put for ward the management layout of four zones and 11 river systems.
small and medium-sized riverssystematic managementoverall layoutriver systemGuangxi
万方数据
维普
