长江经济带生态安全的时空动态及其影响因素——基于三维生态足迹扩展模型  

Spatial-temporal Dynamics and Influencing Factors of Ecological Security in the Yangtze River Economic Belt:Based on Three-dimensional Ecological Footprint Expansion Model

作　　者：李竹 王兆峰[2] 曹文萍[3] 杨贤美 LI Zhu;WANG Zhao-feng;CAO Wen-ping;YANG Xian-mei(School of Arts and Humanities,Hunan University of Finance and Economics,Changsha 410205,China;College of Tourism,Hunan Normal University,Changsha 410081,China;Department of Tourism Management,Hunan Vocational College of Commerce,Changsha 410205,China)

机构地区：[1]湖南财政经济学院人文与艺术学院,中国长沙410205 [2]湖南师范大学旅游学院,中国长沙410081 [3]湖南商务职业技术学院旅游管理系,中国长沙410205

出　　处：《湖南师范大学自然科学学报》2023年第3期42-50,共9页Journal of Natural Science of Hunan Normal University

基　　金：国家自然科学基金项目(41771162,41971188);湖南省国内一流培育学科建设项目(5010002)。

摘　　要：基于三维生态足迹扩展模型,从六大地类角度测算生态安全指数,利用重心分析、空间自相关和地理探测器等研究方法,分别探讨2008—2020年长江经济带生态安全的时空动态及其影响因素。结果表明:(1)在研究期间,长江经济带大多数省市生态安全指数大于1,且呈先增后减的趋势,主要表现为中警和重警。(2)在研究期间,长江经济带生态安全的空间分布呈东高西低的趋势,且具有较强的空间集聚特征,其热点区主要位于东部地区,其重心移动由西南方向转向东北方向。(3)长江经济带生态安全状况不断恶化主要是人口规模、城市规模、经济发展、社会消费和环境影响等因素共同作用的结果。Based on the three-dimensional ecological footprint expansion model,the ecological security index was calculated from the perspective of six land categories.The spatial-temporal dynamics and influencing factors of ecological security in the Yangtze Economic Belt from 2008 to 2020 were discussed by using the methods of gravity center analysis,spatial autocorrelation and geographic detector.The results show as follows.(1) During the studied period,the ecological security indexes of most provinces in the Yangtze River Economic Belt were greater than 1.Among them,the ecological security indexes of most provinces showed a trend of first increasing and then decreasing,mainly manifested as medium warning and heavy warning.(2) During the studied period,the spatial distribution of ecological security in the Yangtze River Economic Belt showed a trend of higher in the east and lower in the west,with strong spatial agglomeration characteristics.The hotspot areas were mainly located in the eastern region,and its center of gravity shifted from the southwest direction to the northeast direction.(3) The deteriorating situation of ecological security in the Yangtze River Economic Belt was mainly caused by the combined effects of population scale,urban scale,economic development,social consumption and environmental impact.

关 键 词：三维生态足迹扩展模型 生态安全 地理探测器 可持续发展 长江经济带 

分 类 号：X321[环境科学与工程—环境工程]