林金煌,博士,福建农林大学讲师。先后主持和参与了多项国家重点研发计划项目子课题、国家自然科学基金面上项目、福建省社科研究基地重大项目、福建省财政厅项目和南京大学博士生创新研究项目等各类科研项目,并在Journal of Cleaner Production、Ecological Indicators、Remote Sensing、Journal of Environmental Management、Environmental Impact Assessment Review、Land Degradation & Development、Science of the Total Environment、《生态学报》、《自然资源学报》、《资源科学》、《生态学杂志》、《地球信息科学学报》等国内外核心期刊上发表系列研究成果30余篇。
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Spatial and temporal patterns of ecosystem health in the Yangtze River Economic Zone and their influencing factors
To promote the healthy management and sustainable development of regional ecosystems, the Yangtze River Economic Belt was taken as the study area to construct an ecosystem health assessment system based on the concept of “Vitality-Organization-Resilience-Ecosystem Services”, and analyze the spatial and temporal evolution of ecosystem health in 2000, 2010 and 2020, We analyzed the spatial and temporal evolution of ecosystem health in the Yangtze River Economic Zone in 2000, 2010 and 2020, and analyzed the main influencing factors and their spatial differentiation characteristics by using geodetectors and geographically weighted regression models. The results showed that: 1) From 2000 to 2020, the ecosystem health of the Yangtze River Economic Zone displayed a decreasing trend, which was from 0.588 in 2000 to 0.569 in 2020; 2) On the whole, the ecosystem health of the Yangtze River Economic Zone had a strong spatial correlation, and its spatial agglomeration effect shows the basic trend of "high in the south and low in the north". The high-high agglomeration mainly distributed in the southern region of the middle and lower reaches, low-low agglomeration mainly distributed in the northern region of the lower reaches, and low-high agglomeration and high-low agglomeration distributed in a piecemeal manner. 3) The main influencing factors on ecosystem health in the Yangtze River Economic Zone were manifested as follows: vegetation cover>urbanization>population density>elevation, and there was obvious spatial heterogeneity in the influence of each driving factor on ecosystem health. This study reveals the spatial and temporal patterns of ecosystem health and its influencing factors in the Yangtze River Economic Belt from 2000 to 2020, which can provide a basis for formulating differentiated and refined ecological management strategies in the Yangtze River Economic Belt.
林金煌,博士,福建农林大学讲师。先后主持和参与了多项国家重点研发计划项目子课题、国家自然科学基金面上项目、福建省社科研究基地重大项目、福建省财政厅项目和南京大学博士生创新研究项目等各类科研项目,并在Journal of Cleaner Production、Ecological Indicators、Remote Sensing、Journal of Environmental Management、Environmental Impact Assessment Review、Land Degradation & Development、Science of the Total Environment、《生态学报》、《自然资源学报》、《资源科学》、《生态学杂志》、《地球信息科学学报》等国内外核心期刊上发表系列研究成果30余篇。
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林金煌,博士,福建农林大学讲师。先后主持和参与了多项国家重点研发计划项目子课题、国家自然科学基金面上项目、福建省社科研究基地重大项目、福建省财政厅项目和南京大学博士生创新研究项目等各类科研项目,并在Journal of Cleaner Production、Ecological Indicators、Remote Sensing、Journal of Environmental Management、Environmental Impact Assessment Review、Land Degradation & Development、Science of the Total Environment、《生态学报》、《自然资源学报》、《资源科学》、《生态学杂志》、《地球信息科学学报》等国内外核心期刊上发表系列研究成果30余篇。
式中:EO为生态系统组织力;LC、LH、CIE分别为整体景观连通性、景观异质性和重要生态系统连通性;AWMPFD和SHDI分别为面积加权斑块分形维数和香浓多样性指数,用以表征景观异质性;DIVISION和CONTAG分别为景观划分指数和景观传染指数,用以表征整体景观连通性;DIVISION和COHESION分别为斑块破碎度指数和斑块凝聚指数,用以表征重要的生态系统连通性。其中,DIVISION f 和DIVISION w 分别为林地和水域的斑块破碎度指数,COHESION f 和COHESION w 分别为林地和水域的斑块凝聚指数。
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