王守兴,工程师。主要从事生态修复、生态承载力评价等方面的研究。主持中国地质调查局地质调查项目一项,参与完成多项中国地质调查局地质调查项目。在《地理科学进展》、《生态学报》、Global Ecology and Conservation等期刊上发表多篇论文。
作者简介:
周翼,博士,讲师。主要从事国土空间生态修复研究。主持多项湖南省教育厅、自然资源部洞庭湖流域生态保护修复工程技术创新中心项目,参与完成国家重点研发计划课题及国家自然科学基金等4项项目,在Sustainable Cities and Society、Building and Environment、《长江流域资源与环境》等期刊上发表多篇论文。
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Spatiotemporal dynamic evaluation and regional division research of ecological carrying capacity in the Three Rivers Source region
To promote the sustainable development of the ecological environment in the ecologically fragile area, this study took the Three Rivers Source region as the research object. The comprehensive index method was adopted to construct an evaluation model of the ecological carrying capacity of the Three Rivers Source region from the three dimensions of stability, support and pressure. The ecological carrying capacities of the Three Rivers Source region in 2010 and 2020 were determined and regional control analysis was carried out. The results show that: 1) From the single dimension of stability, the stability of the Three River Source water area decreases, the stability of glaciers slightly increases while the range shrinks, and the NDVI of grasslands slightly increases while the range shrinks; From the perspective of support, there is an increase in source conservation and soil conservation, but the habitat quality slightly decreases; From the perspective of bearing capacity, the theoretical carrying capacity of grasslands in the Three Rivers Source area has decreased. 2) Overall, the ecological carrying capacity of the Three Rivers Source decreased by 3% in 2020 compared to 2010, with degradation and rapid degradation areas accounting for about 41%. The ecological carrying capacity of the Three Rivers Source urgently needs to be improved. 3) Based on the comprehensive evaluation results of the ecological carrying capacity of the Three Rivers Source, the ecological carrying capacity can be divided into four different regions. Among them, the Type Ⅰ region has the worst ecological carrying capacity, and special attention should be paid to the issue of glacier stability; Type Ⅱ regions have relatively stable ecological carrying capacity and are the most widely distributed regions; Type Ⅲ regional grasslands have higher stability and lower habitat quality; Type Ⅳ areas are important river and lake protection areas. The strategies for improving the carrying capacity of different functional regions are different. Therefore, the improvement strategies should align with different carrying capacity levels. The Three Rivers Source region must focus on targeted restoration and management, and implement measures tailored to each area's ecological characteristics and capacity.
周翼,博士,讲师。主要从事国土空间生态修复研究。主持多项湖南省教育厅、自然资源部洞庭湖流域生态保护修复工程技术创新中心项目,参与完成国家重点研发计划课题及国家自然科学基金等4项项目,在Sustainable Cities and Society、Building and Environment、《长江流域资源与环境》等期刊上发表多篇论文。
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周翼,博士,讲师。主要从事国土空间生态修复研究。主持多项湖南省教育厅、自然资源部洞庭湖流域生态保护修复工程技术创新中心项目,参与完成国家重点研发计划课题及国家自然科学基金等4项项目,在Sustainable Cities and Society、Building and Environment、《长江流域资源与环境》等期刊上发表多篇论文。
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