摘要
土地利用及生态系统服务价值(ESV)是生态环境演变的重要因素,其研究有利于促进区域经济协调和可持续发展。以福建省长汀县为研究对象,通过遥感解译数据获得2005、2010、2015、2020年长汀县土地利用变化数据,分析其土地利用现状、土地利用动态度和土地利用强度,并结合社会经济统计数据估算长汀县的ESV。研究表明:(1)长汀县土地利用以林地和耕地为主;各地类间转换频繁,动态度最大的是未利用地,为-23.91%,表明其减少的幅度大;其次是建设用地,为1.5%,建设用地是增加幅度最大的地类。2005—2010年的综合动态度最大。(2)土地利用程度逐年上升,分别为214.56、206.05、216.48和216.70。(3)2005—2020年期间,长汀县的ESV变化幅度很小,基本保持稳定;各乡镇变化趋势有所不同,ESV增加最多的是河田镇,减少最多的是大同镇。当前长汀县生态状况较为良好,但未来应注意保持生态与经济的协调发展,合理规划用地,加强生态保护。
Land-use and ecosystem service value(ESV)are the important factors in the evolution of ecological environment,and its research is conducive to promoting regional economic coordination and sustainable development.The data of Changting County's land use change in 2005,2010,2015,and 2020 were obtained through remote sensing interpretation data,then the land use status,dynamics and intensity were analyzed.Combined with society economic statistics,the value of ecosystem services in the county was estimated.The research shows that,(1)Land use in Changting County is dominated by forest land and cultivated land;there are frequent conversions between various regions,The most dynamic is unused land,which is-23.91%,indicating a large reduction;the second is construction land,which is 1.5%.Construction land is the land category with the largest increase.From 2005 to 2010 the degree of dynamics is the largest.(2)The degree of land use is increasing year by year,which are 214.56,206.05,216.48 and 216.70 respectively.(3)During the study period,the change of ESV in the county was small and basically remained stable;the change trend of each township was different.The ESV increased the most in Hetian Town,and decreased the most in Datong Town.The current ecological conditions of the county are relatively favorable,but in the future,attention should be paid to maintaining the coordinated development of ecology and economy,rationally planning land use,and strengthening ecological protection.
作者
何泽雁
林惠花
武国胜
HE Zeyan;LIN Huihua;WU Guosheng(School of Geographical Sciences,Fujian Normal University,Fuzhou 350007,China;Institute of Geography,Fujian Normal University,Fuzhou 350007,China)
出处
《亚热带资源与环境学报》
2021年第4期38-47,共10页
Journal of Subtropical Resources and Environment
基金
福建省属公益类科研院所专项(2018R1034-7)。
