摘要
以国内生态系统服务价值研究成果为基础,结合当地实际情况,计算出当地不同土地利用生态系统服务价值系数。以贵州省麻江县为例,分析了岩溶山区生态系统服务价值时空演变特征。结果显示:麻江县生态系统服务价值快速增加,林地对生态系统服务价值贡献率大幅提高,而耕地、草地、水域、其他土地的贡献率不断降低;生态系统服务价值空间特征由西高东低向均衡方向发展;退耕还林政策的实施、石漠化治理、土地开发特点是影响岩溶山区生态系统服务价值时空差异的主要因素。
Based on the actual local situation and domestic research results of ecosystem services value, the paper works out the coefficients of ecosystem service value of land use and analyzes the spatial - temporal evolution characteristics of ecosystem service value in Majiang county of Guizhou Province. The results show that： （ 1 ） the ecosystem service value increased significantly in Majiang County, where the woodland contribution rate of ecosystem service value had a substantial increase, while the contribution rate of farmland, grassland, waters, and other land de- creased ; （2） the spatial characteristics of ecosystem service value evolved from western high, eastern Low to equilibrium and the increased total value and change rate of ecosystem services value in eastern towns is significantly higher than western towns; （3） the implementation policy of returning farmland to forest, rocky desertification control, land development characteristics are the main factors affecting the spatial -temporal evolution characteristics of ecosystem service value in karst mountains.
出处
《贵州师范学院学报》
2014年第12期26-29,共4页
Journal of Guizhou Education University
基金
贵州省软科学研究项目"贵州工业化
城市化加快推进时期耕地保护研究"[黔科合体R字(2012)2030]
贵州省环境科学教学团队项目(黔教高[2012]426号)
贵州师范学院环境科学教学团队项目(贵师院[2012]47号)
国家自然科学基金项目(31100187)
关键词
岩溶山区
生态服务价值
土地利用
karst mountains
ecosystem service value
land use
GIS
