基于土地利用/覆被变化的南通市生态系统服务价值研究

研究土地利用变化对区域生态系统服务价值的影响具有重要意义。论文以南通市土地利用动态数据为基础,应用Costanza等提出的生态系统服务价值系数,分析了土地利用变化及其所引起的生态系统服务价值的变化。结果表明,2006年-2009年,南通市耕地面积大量减少,其它类型土地面积在增加;土地利用的变化导致了南通市生态服务价值从2006年的7.42×109元增加到2009年的8.76×109元,增加了1.34×109元,主要由于水域面积的扩大导致生态服务功能价值的增加。

Urban Ecosystem Service Values Based on Land Use Change/Cover in Nantong

It is of significance to study the influence of land use change on ecosystem service values.This paper aimed to provide support for sustainable use of resources and protection of eco-environment by assessing land use change and its consequent changes in ecosystem service values of Nantong.The land use data were obtained by interpreting remote sensing images.Based on dynamic data of land use in Nantong,this paper analyzed changes in land use and ecosystem service values using the ecosystem service value coefficients put forward by Costanza et al.Results show that from 2006 to 2009,area of farmland decreased and other categories of land use increased.The total ecosystem service values of the study area increased form 7.42×109$ yuan to 8.76×109 yuan during 2006-2009.There was a 1.34×109$ yuan net increase in the total ecosystem service values,mainly contributing to the increase of waters areas.