东北土地利用变化的影响-《现代农业研究》

文章信息/Info

Keywords:: LUCC change; The value of ecosystem services; Sensitivity index; The northeast sample; China

摘要:: 根据中国东北样带上不同的土地利用组合类型作为典型区。运用GIS 和遥感技术分析近30年来不同类型区土地利用变化对生态系统服务价值的影响。本文选取基于货币量的价值量评价法，参考Costanza等人的研究成果。结合研究区的实际情况。运中国陆地生态系统服务单位面积价值的平均值来分析研究区的生态系统服务价值变化情况。研究结果表明，东北样带土地利用类型变化很大。土地利用程度均呈加大趋势，耕地、林地和草地的ESV 均有较大变动，不同类型区单位面积的ESV差别也很大。其基本分布规律为林区>农林交错区>牧区>农牧交错区>农区。敏感性分析结果表明。研究区内ESV对生态服务功能价值指数是缺乏弹性的，研究结果是可信的。

Abstract:: According to the sample with different combination types of land use in China's northeast as a typical area. Using GIS and remote sensing analysis on different type areas in nearly 30 years the effects of land use change on ecosystem service value. Selection in this paper, based on the amount of value evaluation method, the research results of the reference Costanza et al. Combined with the actual uation in the study area. Using mean value of Chinese land ecosystem service value per unit area to analyze changes in ecosystem services value in the study area. The research results show that the northeast sample with land use types changed a lot. Are in increasing trend, the degree of land use of cultivated land, woodland and grassland ESV have major changes, different type of unit area ESV ifference is very big also. The basic distribution laws of forest > crisscross zone of agriculture and forestry > > farming-pastoral zone > pasture farming areas. Results showed that the sensitivity analysis. ESV research areas of ecological service function value index is lack of elasticity, the results are credible.