摘要
通过对江苏省沿海地区1990年、2000年、2009年三期遥感影像数据结果的分析,获取了江苏省沿海地区土地利用类型的信息,分析了研究年份该区域土地利用变化,对区域土地利用变化的生态系统服务价值进行了核算。结果表明:1990—2009年江苏省沿海地区耕地、建设用地及盐田面积分别增加了51.25,446.56,95.51km2,其他地类面积处于减少状态,其中未利用地、水域、林地及湿地类型分别减少了288.80,199.42,68.07,37.03km2;江苏省沿海地区生态系统服务总价值从1990年的172.049 9亿元减少到2009年的166.306 0亿元,其中,耕地、建设用地、盐田的生态服务价值分别增加了0.182 5亿元、0.073 8亿元、0.015 8亿元,林地、水域、湿地及未利用地的生态服务价值分别减少了0.859 6亿元、4.065 0亿元、0.911 1亿元、0.180 3亿元。土地利用结构变化深刻影响区域生态系统服务价值,地方政府在制定相关发展规划时应统筹考虑土地利用结构变化带来的生态系统服务价值变化影响,优化土地利用结构,建立环境友好型土地利用格局。
Through the analysis of remote sensing data of Jiangsu Coastal Area in 1990,2000 and 2009,landuse types across the area were gathered,and the land-use changes over the years were tracked.Based on the sets of data,the value of ecosystem services resulted from the changes were calculated.During 1990—2009,the areas of arable land,construction land and salt pan increased by 51.25km^2,446.56km^2 and 95.51km^2,respectively,while the areas of other land types reduced,wherein the area of unused land,water area,woodlands and wetlands reduced 288.80km^2,199.42km^2,68.07km^2 and 37.03km^2,respectively.The total value of ecosystem services decreased from 17.205 billion yuan in 1990 to 16.631 billion yuan in 2009,thereinto the value of ecosystem services of arable land,construction land and salt pan increased by 18.25 million yuan,7.38 million yuan and 1.58 million yuan,respectively.The values of ecosystem services of woodland,water area,wetlands and unused land reduced 85.96 million yuan,406.5million yuan,91.11 million yuan and18.03 million yuan,respectively.The results show that land use changes have the great impacts upon ecology service values.Therefore,the local governments should attach more importance to ecology when making relevant development plans,so as to optimize land use structure and make the land use pattern environment-friendly.
出处
《水土保持研究》
CSCD
北大核心
2015年第1期252-256,共5页
Research of Soil and Water Conservation
基金
国家自然科学基金"基于分层视角的工业用地集约利用机理研究"(41201573)
