水土保持研究2011，Vol.18Issue(1)：71-76,81,7.
土地覆盖变化对盐城海岸带湿地生态系统服务价值的影响
Effects of Land Cover Change on the Ecosystem Services Values in Yancheng Coastal Wetlands
摘要
Abstract
Using Costanza's ecosystem services value computing formula and Chinese land ecosystem services value per unit area of coefficients, according to the local market price, based on the existing literatures of coastal wetland ecosystem service value to determine the value of coefficient of ecosystem services, and combined with field survey results and two-period land cover dynamic data from remote sensing image of Yancheng coastal wetland, this paper analyzed change in land use and cover and subsequent loss of ecosystem services value.The results showed that: from 1992 to 2008, this wetland's land cover has experienced significant changes.A large number of natural wetlands transform into productive land, aquaculture ponds and farmland area change is most obvious, Phragmites communis and Suaeda salsa area reduced 75.27％ and 72.83％ respectively in the natural wetlands, while Spartina alterniflora area increased 369.09％.Total ecosystem service values of study area increased 2.534 9 × 109 Yuan in period 1992-2008, aquaculture pond's expansion is the primary reasons for the ecosystem services value increased.Atmospheric composition regulation, water regulation,pollutant degradation, recreation, cultural and biodiversity conservation values were significantly reduced.Among the various land cover types, aquaculture ponds and Spartina alterniflora were increased in the value of ecosystem services, while the Phragmites communis and Suaeda salsa were substantially reduced.Numerous natural wetland transformed into productive land and large-scale Spartina alterniflora invasion were the mainly reasons which led different land cover type's ecosystem service value to change.关键词
土地覆盖变化/盐城海岸带湿地/生态系统服务价值分类
资源环境引用本文复制引用
邢伟,王进欣,王今殊,仲崇庆,张维康,毛霞丽..土地覆盖变化对盐城海岸带湿地生态系统服务价值的影响[J].水土保持研究,2011,18(1):71-76,81,7.基金项目
林业科技支撑计划子专题(2006BAD03A1903) （2006BAD03A1903）
江苏省高校自然科学研究计划一般项目(06KJB170112) （06KJB170112）
徐州师范大学基金理科培育项目(07PYL07) （07PYL07）
