贵阳市土地利用变化对生态系统服务价值的影响

Effects of Land Use Variations on Ecosystem Services Value of Guiyang City

为贵阳市(喀斯特山区)土地可持续利用、生态环境保护和生态文明城市建设提供依据,以2000-2011年贵阳市土地利用数据为基础,参照谢高地等对中国陆地生态系统单位面积生态服务价值表,研究贵阳市土地利用变化对生态系统服务价值的影响。结果表明:1)2000-2011年贵阳市土地利用变化显著,其中耕地、草地面积减少,建设用地、林地和水域面积增加;2)11年间贵阳市生态系统服务价值增加118 087.29万元,年均变化率0.13%,主要是因为林地面积的逐年增加所致;3)11年间贵阳市人均生态服务价值净减少227.81元,年均变化率-0.083%。贵阳市应加强耕地、林地和水域等高生态价值生态用地的保护,提高喀斯特生态系统的服务价值,促进城市的可持续发展。

In order to provide a basis for Guiyang （Karst mountainous area）land sustainable use, environmental protection and ecological civilization city construction,the land use change and its effects on ecosystem service value are analyzed in the rapidly developed region of Guiyang city from 2000 to 2011.The methods used in the paper are based on the ecosystem service value computing formula and coefficients of the land ecosystems in China advanced by XIE Gaodi et al.Results：1 ）the changes of land use were obvious during 2000 to 2011.The cultivated land and grass land decreased largely,while construction land,forest land and water land increased.2）The ecosystem services value（ESV）of Guiyang increased by 1180872.9 thousand Yuan,with the annual percent change of 0.13% from 2000 to 2011,which due to the annual forest area increase.3）The average decreased by 227.81 Yuan during 2000 to 2011,with the annual percent change of -0.083%.As a result,Guiyang should strengthen the ecological land protection of farmland,woodland and waters,and improve the value of ecosystem services in Karst ecosystem in order to achieve sustainable development of Guiyang.