江苏沿海地区耕地利用转型及其生态系统服务价值变化响应

发布时间：2018-06-20 01:40

本文选题：耕地利用转型 + 生态系统服务价值　；参考：《自然资源学报》2017年06期

【摘要】：论文以江苏沿海地区1990、2000和2010年3期土地利用空间数据为基础,在GIS、地学信息图谱理论和Costanza等生态系统服务价值测算方法的支持下合成时间序列表征下的耕地利用转型图谱、耕地利用转型模式图谱和生态系统服务价值图谱,据此揭示江苏沿海地区耕地转型时空变化特征及其生态系统服务价值变化响应规律。结果表明:1)1990—2000年阶段耕地以建设用地、水域和林地占用为主,补充耕地来源除建设用地、水域和林地外,还包括了草地,耕地占用大于补充。空间差异以"耕地→建设用地"、"草地→耕地"最为明显,空间分离度低。2)2000—2010年阶段耕地占用的去向增加了未利用地,草地仍是主要的耕地补充来源。空间上以"耕地→建设用地"和"耕地→水域"图谱变化最为显著,空间分离度变大。3)1990—2010年耕地利用转型模式以后期变化最为显著。4)近20 a间,江苏沿海生态系统服务总价值由170.85×108元提升为182.23×108元,水域是提高生态系统服务价值最主要的贡献类型。耕地利用转型导致耕地的生态系统服务价值降低,"耕地→建设用地"是最主要的生态减值图谱类型。
[Abstract]:Based on the land use spatial data of 1990 / 2000 and 2010 in the coastal areas of Jiangsu Province, the paper synthesizes the cultivated land use transition map under the support of GISs, the theory of geoscience information atlas and the calculation method of ecosystem service value, such as Costanza, etc., under the representation of time series. The pattern map of cultivated land use transformation and ecosystem service value map reveal the temporal and spatial characteristics of cultivated land transformation and the response law of ecosystem service value change in coastal areas of Jiangsu Province. The results showed that the cultivated land was mainly occupied by construction land, water area and forest land in 1990-2000 period. Besides construction land, water area and forest land, the source of supplementary cultivated land included grassland, and the occupation of cultivated land was larger than that of supplement. The spatial difference was between "cultivated land and construction land", "grassland cultivated land" was the most obvious, and the land occupied by cultivated land was increased in the period of 2000-2010 with low spatial separation degree. Grassland is still the main source of arable land supplement. In space, the maps of "cultivated land for construction" and "cultivated land area" have the most significant changes, and the spatial separation degree has become larger. 3The pattern of cultivated land use transformation from 1990 to 2010 is the most significant in the late stage. 4) during the past 20 years, the change of the pattern of cultivated land utilization is significant. The total value of ecosystem services in Jiangsu coastal areas increased from 170.85 脳 10 ~ 8 yuan to 182.23 脳 10 ~ 8 yuan. The transformation of cultivated land use leads to the decrease of ecosystem service value of cultivated land, and "cultivated land for construction" is the most important atlas of ecological impairment.
【作者单位】：曲阜师范大学地理与旅游学院;国土资源部海岸带开发与保护重点实验室;南京大学地理与海洋科学学院;
【基金】：国家自然科学基金项目(41301185,41671176) 山东省自然科学基金项目(ZR2013DQ018) 国土资源部海岸带开发与保护重点实验室开放基金项目(2015CZEPK02)~~
【分类号】：F323.211

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