摘要
土地利用变化和生态恢复是环境科学和可持续发展的重要研究领域。本研究基于宜昌市2012—2022年的土地利用变化数据,采用土地利用变化强度指数、类型矩阵和动态度指数方法,评估生态恢复的数量变化、空间分布特征,以及生态恢复工程的效果。结果显示,通过实施退耕还林、天然林保护等工程,宜昌市有效改善了生态环境;林地面积从占总面积的38.72%增加到40.35%,水域面积也有所增加;生态恢复导致耕地面积减少1.88%,草地面积减少0.21%,未利用地面积减少0.28%,得到了有效开发。此外,生态恢复的空间分布受到自然条件、社会经济发展和水利工程建设等因素的显著影响,其中秭归县、兴山县、五峰县和长阳县的土地利用变化动态度较高,而夷陵区、猇亭区和西陵区的变化动态度较低。基于此,提出了持续推进生态恢复工程、优化土地利用规划、加强水域管理和保护、提高土地利用效率,并加强生态恢复效果监测的建议。
Land use change and ecological restoration are critical areas of study in environmental science and sustainable development.Based on the land use change data in Yichang city from 2012 to 2022,this study employed the land use change intensity index,type matrix,and dynamic degree index to assess the quantitative changes and spatial distribution characteristics of ecological restoration.The results showed that the implementation of projects such as returning farmland to forests and protecting natural forests,Yichang has significantly improved its ecological environment;the forest area increased from 38.72%to 40.35%of the total area,and the water area also increased;ecological restoration led to a 1.88%reduction in cultivated land,a 0.21%reduction in grassland,and a 0.28%reduction in unused land,which was effectively developed.Additionally,the spatial distribution of ecological restoration is significantly influenced by natural conditions,socio-economic development,and water conservancy projects,in which,Zigui county,Xingshan county,Wufeng county,and Changyang county exhibite higher land use change dynamics,while Yiling district,Xiaoting district,and Xiling district show lower dynamics.Based on this,recommendations were made to continue promoting ecological restoration projects,optimize land use planning,strengthen water area management and protection,improve land use efficiency,and enhance monitoring of ecological restoration effects.
作者
陈权
Chen Quan(Economics and Management School of Yangtze University,Jingzhou 434023,Hubei)
出处
《农业展望》
2025年第4期60-66,共7页
Agricultural Outlook
基金
教育部人文社会科学研究青年基金项目(17YJC790169)。
关键词
生态恢复
土地利用变化
生态环境
宜昌市
ecological restoration
land use change
ecological environment
Yichang city
