Research and practice of ecological protection and restoration of mountain-river-forest-farmland-lake-grassland system in Nanling mountains area, northern Guangdong Province
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摘要: 粤北南岭山区是我国珠三角地区主要的水源涵养区和华南地区重要的生态屏障。基于“山水林田湖草是一个生命共同体”理念,针对矿山与土壤环境、水源涵养和生物多样性保护、流域水环境保护及治理、环境安全保障与生态发展等生态环境问题,提出以实现山清水秀、林带环绕、碧湖青田、城美人和为生态保护修复目标,以空间管控为前提,以整体保护、系统修复、综合治理、突出问题导向为总体思路,设计了相应的四大类17项工程方案;方案实施以来,在恢复矿山环境、提高耕地安全利用率、稳定饮用水水源地水质达标率、增强区域生态系统稳定性和改善生态环境等方面效果显著。建议下一步在分析山水林田湖草各生态要素差异性特征、完善自然资源要素空间配置和生态补偿机制、总结试点经验并探索新型管理和运行模式方面重点开展研究。Abstract: Nanling mountains area in northern Guangdong Province is the main water conservation area in the Pearl River Delta region of China and an important ecological barrier in South China. Based on the concept of “mountain-river-forest-farmland-lake-grassland (MRFFLG) system is a life community”, in view of the eco-environment problems of mine and soil environment, water conservation and biodiversity protection, basin water environment protection and management, environmental security guarantee and ecological development, the ecological protection and restoration goals of green hills and clear waters, surrounded by forest belts, green lakes and fields, beautiful city and human conditions were proposed. Based on the premise of spatial control and with the general ideas of overall protection, system restoration, comprehensive treatment and emphasizing problem’s guidance, the corresponding 17 projects in four categories were designed. Since the implementation of the program, it had achieved remarkable results in the aspects of recovering the mine eco-environment, improving the safe utilization rate of cultivated land, stabilizing the standard rate of drinking water quality, enhancing the stability of regional ecosystem and improving the ecological environment. It was suggested that the following research should be focused on analyzing the difference characteristics of ecological elements of the MRFFLG system, improving the spatial allocation of natural resource elements and ecological compensation mechanism, summarizing pilot experiences and exploring new management and operation models.
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