县域土地利用生态系统服务价值评估研究——以内蒙古和林格尔县为例

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土地利用生态系统服务价值是土地资源价值的组成部分.随着社会经济的发展,土地的生态功能和生态价值日益受到关注.基于内蒙古和林格尔县1997~2007年的土地利用变化数据,运用经济学和环境科学的评估方法并借鉴了科斯坦萨(Costanza)和谢高地等人的评价模型,评估了和林格尔县土地利用生态系统服务价值的变化情况.研究结果表明:1997~2007年和林格尔县土地里利用生态系统直接服务价值逐年增长,间接服务价值呈现出“先增后减”的变化趋势,土地利用生态系统服务价值与GDP具有一定的相关性.研究结果不仅量化了土地资源生态价值,也可为今后制定土地利用政策和构建土地生态补偿机制提供科学依据和支撑.
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