长株潭城市群绿心地区生态系统服务价值时空变化研究

为了验证绿心地区土地利用变化对生态系统服务价值(ESV)的影响,运用2008、2013、2018年的土地利用数据,综合当量因子法、格网分析法、空间自相关分析、相关性分析及变差贡献率分析等,研究绿心地区ESV的时空动态变化.结果显示,绿心地区的耕地面积持续减少,建设用地和林地面积明显增加;ESV在早期呈下降趋势,但201...

Study on the Spatiotemporal Changes of Land Use and Ecosystem Services Value (ESV) of the Green Heart Area in the Changsha-ZhuzhouXiangtan (CZT) City Group

In order to understand the impact and status of land use change on the ecosystem service value (ESV) in the green heart area of the CZT, this study used land use data of 2008, 2013 and 2018 processed by ArcGIS to analyze the spatiotemporal dynamic change of ESV of the green heart area with the equivalent factor method, the grid analysis method and the spatial auto correlation analysis method. The results found that the cultivated land area continued to decrease, and the construction land and forest land increased significantly; the ESV decreased in the early stage, but increased after 2013; the functions of hydro-logical regulation, water supply and climate regulation increased significantly. The development, construction and protection of the green heart area have been carried out orderly since 2013, and the ESV has shown an obvious growth trend. It implicated that the protection mode of reasonable development and strict control of ecological bottom line may improve the ecosystem service function, and it is feasible to adopt the protection strategy with protection as the main factor and development as the supplement