The theoretical connotation of mountain-river-forest-farmland-lake-grassland thoughts and the practice of ecological protection and restoration: taking Guangxi Zuojiang-Youjiang River Basin pilot project as an example

In order to understand and practice the ideology of mountain-river-forest-farmland-lake-grassland (MRFFLG) life community, the general idea of this theory was interpreted and the practice of ecological protection and restoration was explored, taking the pilot project of Zuojiang-Youjiang River Basin in Guangxi as an example. The regional characteristics and eco-environment of the Zuojiang-Youjiang River Basin was analyzed. The basin is a typical karst geomorphology area and at present, its rocky desertification and soil erosion were prominent problems. Many problems had been left over from the history of ecological damage and environmental pollution in mines needed to be solved urgently, and the current situation of biodiversity protection was still under worrying condition. Based on the theory basis of the mechanism of clean water runoff generation in the watershed, the overall idea and performance target of ecological protection and restoration of MRFFLG were clarified. The watershed was divided into four functional areas: mountain water conservation and biodiversity conservation area, hilly soil erosion and stony desertification control area, plain pollution source control and comprehensive environmental improvement area, and wetland and water body ecological protection and restoration area. The restoration schemes of different functional areas were proposed respectively. The pilot programme has been implemented for more than one year and achieved good results, achieving a good combination of economic, social and ecological benefits, which could provide reference for the implementation of similar projects.