摘要
基于“三生用地”土地利用分类,应用GIS、Fragstats和GeoDa等软件辅助,以福州中心城区为研究区,基于2000、2009和2015年三期遥感影像提取土地利用数据,分析2000—2015年间研究区生态服务价值和景观生态风险时空变化特征以空间相关性,结果表明:(1)三生用地变化上看,研究区生态用地及生态生产用地小幅度减少,生产生态用地和生活生产用地变化相对较大,城市扩张所需的生活生产用地主要从生产生态用地转出;(2)2000—2015年研究区生态系统服务价值总量由772.06×10^(8)元降低到562.16×10^(8)元,生态风险指数呈现缓慢降低趋势,区域生态风险有所好转;(3)研究区单位面积生态系统服务价值和生态风险指数数量上显著相关,时间上2000年为负向相关,2009年与2015年为正向相关。研究结果有助于调控福州中心城区生态风险,优化土地利用布局,为城市健康持续发展提供科学依据。
According to the land use classification of“production-living-ecological”,using GIS,Fragstats,GeoDa and other software,this paper analyzed the spatial temporal evolution and correlation of ecosystem service value and ecological risk in the central urban area of Fuzhou from 2000 to 2015.The results showed that:(1)the landscape type of central urban area of Fuzhou was forestry ecological land in 2000 to 2015.The change of landscape pattern was mainly reflected in the occupation of agricultural production land by urban and rural living land.(2)From 2000 to 2015,the total value of ecosystem services in the central urban area of Fuzhou continued to increased from 772.06×10^(8) yuan to 562.16×10^(8) yuan and the ecological risk index showed a slowly decreasing trend.Therefore,regional ecological risks improved.(3)There was a significant correlation between the value of ecosystem services per unit area and the ecological risk index.Spatially,there was a negative correlation in 2000 and a positive correlation in 2009 and 2015.The results of the research are helpful to regulate urban ecological risks,optimize the layout of urban land resources,and provide a scientific basis for the healthy and sustainable urban development of Fuzhou.
作者
徐乙文
戴文远
黄万里
黄康
胡航箫
XU Yiwen;DAI Wenyuan;HUANG Wanli;HUANG Kang;HU Hangxiao(Key Laboratory for Humid Subtropical Eco-geographical Processes of the Ministry of Education,Fuzhou 350007,China;Fujian Normal University,School of Geographical Sciences,Fuzhou 350007,China;Institute of Geography,Fujian Normal University,Fujian Normal University,Fuzhou 350007,China)
出处
《生态科学》
CSCD
2021年第4期92-101,共10页
Ecological Science
基金
国家自然科学基金(41971261)
福建省自然科学基金(2018J01741)
福建省科技厅公益类重点项目(2017R1034-2)。
关键词
景观生态风险
三生用地
生态服务价值
福州中心城区
landscape ecological risk
production-living-ecological
ecosystem service
Fuzhou central city
