生态学报2017，Vol.37Issue(6)：2118-2125,8.DOI:10.5846/stxb201510282180
基于梯度分析的武汉市生态系统服务价值时空分异特征
Spatiotemporal variation of ecosystem services value based on gradient analysis in Wuhan: 2000-2010
摘要
Abstract
Ecosystems provide a multitude of services that are fundamental to the well-being,livelihood,health,and survival of humans.A comprehensive understanding of the spatiotemporal features of Ecosystem Services Value (ESV) is necessary for appropriate land use and land management in metropolitan areas.Based on this research,methods of quantitative analysis could be considerably improved.Considering Wuhan as an example,we classified Landsat TM/ETM+ images into developed land,unused land,arable land,garden plots,forests,and water by using a maximum likelihood analysis,and calculated the ESV per unit area.Based on spatial distributional maps of ESV,we introduced a gradient analysis and set gradient circles and belt transects to analyze the spatiotemporal features of ESV.The main conclusions were 1) the amount of ESV decreased by 268 million RMB from 2000 to 2010;2) based on the gradient circles analysis,ESV decreased within the north 3rd to 5th ring road (corresponding to 12-30 km from the urban center) and south 3rd to 4th ring road (corresponding to 12-24 km from the urban center),whereas ESV increased within the north 8th ring and south 7th ring;3) based on the belt transects analysis,the change rate of ESV showed a symmetrical W-shape pattem latitudinally,whereas longitudinally,it was partitioned into four sections based on theamplitude of the ESV change rate.Overall,northern Wuhan demonstrated more changeability in ESV than the southern area.关键词
生态系统服务价值/梯度分析/时空分异/武汉市Key words
Ecosystem Services Value (ESV)/gradient analysis/spatiotemporal variation/Wuhan引用本文复制引用
李全,李腾,杨明正,应玮..基于梯度分析的武汉市生态系统服务价值时空分异特征[J].生态学报,2017,37(6):2118-2125,8.基金项目
国家自然科学基金资助项目(71073116) （71073116）
国家基础科学人才培养基金科研能力训练项目(J1103409) （J1103409）
