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地理科学  2010 

最小数据方法在生态补偿中的应用——以甘南黄河水源补给区为例

, PP. 748-754

Keywords: 甘南黄河水源补给区,最小数据方法,新增水源涵养量,生态补偿标准

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Abstract:

甘南黄河水源补给区蓄水、补水功能对整个黄河流域水资源调节起了关键作用,亟需建立生态补偿机制保护生态环境。采用最小数据方法模拟出了草地水源涵养服务供给曲线,根据不同的生态恢复目标,确定补偿标准,估算新增水源涵养量。研究结果显示(1)通过生态补偿提高甘南黄河水源补给区水源涵养能力是可行的;(2)当合作、夏河、玛曲、碌曲、卓尼、临潭的补偿额分别达1024.3、999.79、861.74、1008.54、585.54、983.22元/hm2时,该区退化草地将全部禁牧,将新增水源涵养量2.253×109m3;(3)草地提供的水源涵养服务和农户经济行为存在空间异质性,因此应建立差别化、动态化补偿标准。

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