鄱阳湖流域县域生态韧性空间格局演变研究  

Evolution of Ecological Resilience Space Pattern at County Level in Poyang Lake Basin

作　　者：曾凡盛 冯兴华[1] 唐燕 肖泽平 毕曼玉 ZENG Fan-sheng;FENG Xing-hua;TANG Yan;XIAO Ze-ping;BI Man-yu(School of Geography and Environment,Jiangxi Normal University/Jiangxi Provincial Institute of Urban Population/Key Laboratory of Poyang Lake Wetland and Watershed Research,Ministry of Education,Nanchang 330022,China)

机构地区：[1]江西师范大学地理与环境学院/江西省城市人口研究所/鄱阳湖湿地与流域研究教育部重点实验室,江西南昌330022

出　　处：《地理与地理信息科学》2022年第6期29-35,共7页Geography and Geo-Information Science

基　　金：国家自然科学基金项目(42001189);江西省教育厅科学技术研究项目(GJJ200315);江西省教育厅研究生创新基金项目(YC2022-s245);鄱阳湖湿地与流域研究教育部重点实验室(江西师范大学)开放基金项目(PK2020006)。

摘　　要：构建科学合理的生态安全格局、落实生态保护修复与空间优化是促进县域生态系统健康运行和社会经济可持续发展的重要途径。该文基于景观生态学视角,从规模、密度和形态3个子系统构建生态韧性评估模型,探究2000-2019年鄱阳湖流域县域生态韧性时空变化格局,并分析各子系统的耦合协调状况,识别影响县域生态韧性的短板与关键要素,提出流域生态适应性治理和差异化保育策略。结果表明:1)研究期内鄱阳湖流域县域生态规模韧性和密度韧性持续下降,形态韧性变化幅度较小,未来县域发展将面临强烈的规模安全和密度安全约束;2)规模韧性、密度韧性均表现为南高北低的空间分布格局,形态韧性呈现“四周高、中间低”的空间分布格局,未来鄱阳湖流域需注重内部协调发展,实现整体耦合协调;3)流域内各韧性子系统基本保持协调,但逐渐出现向失调转变趋势,其中规模韧性和密度韧性是生态韧性各子系统之间耦合协调的关键维度。强化生态屏障区保育、实施城镇建设用地存量规划和生态韧性分区治理、调整县域产业发展模式等策略是未来提升鄱阳湖流域县域韧性水平的主要途径。Constructing a scientific and reasonable ecological security pattern,implementing ecological protection and restoration and spatial optimization are important ways to promote the healthy operation of county ecosystem and sustainable development of social economy.Based on the perspective of landscape ecology,this paper constructed an ecological resilience assessment model from three subsystems:scale,density and morphology.The aim is to describe the temporal and spatial patterns of ecological resilience at the county level in Poyang Lake Basin from 2000 to 2019,and analyse the coupling and coordination of subsystems,so as to identify the weaknesses and key dimensions of ecological resilience at the county level,and further propose the ecological adaptive governance and differentiated conservation strategies for Poyang Lake Basin.It is found as follows.1) The scale and density resilience of Poyang Lake Basin continued to decline from 2000 to 2019,however,the morphology resilience changed slightly.In the future,county development will face serious constraints on scale safety and density security.2) There are significant regional differences in scale,density and morphology resilience,which are higher in the south and lower in the north for scale resilience and density resilience,and higher in the surrounding areas and lower in the middle areas for morphology resilience.In the future,for Poyang Lake Basin,we need to focus on internal coordinated development to achieve overall coupling and coordination.3) The coupling coordination of each resilience subsystem in the basin is essentially coordinated,but it is gradually changing into an uncoordinated state.The scale and density resilience are the key dimensions of coupling coordination among the subsystems of ecological resilience.The main ways to improve the resilience level of counties in Poyang Lake Basin include the implementation of strategies such as strengthening the conservation of ecological barrier areas,urban construction land stock planning,zoning governance o

关 键 词：规模韧性 密度韧性 形态韧性 耦合协调度模型 鄱阳湖流域 

分 类 号：X321.5[环境科学与工程—环境工程] F124.5[经济管理—世界经济]