| 禁牧对典型草原生态系统服务功能影响的价值评价 |
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| 引用本文： | 许晴,许中旗,王英舜.禁牧对典型草原生态系统服务功能影响的价值评价[J].草业科学,2012,29(3):364-369. |
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| 作者姓名： | 许晴 许中旗 王英舜 |
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| 作者单位： | 河北农业大学,河北保定,071000;内蒙古锡林浩特国家气候观象台,内蒙古锡林浩特,026000 |
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| 基金项目： | 基金项目:国家自然科学基金重点项目 |
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| 摘 要： | 为了定量评价禁牧对典型草原生态系统的影响，采用生态系统服务功能经济价值评价方法对放牧及禁牧时间不同（2、7和17年）的典型草原生态系统服务功能进行了评价。结果表明，禁牧可以显著提高典型草原生态系统物质生产、碳吸收、氧气释放及物质循环功能的价值量；物质生产功能价值量随禁牧时间的增加而增加，以禁牧17年典型草原为最高；碳吸收、氧气释放及物质循环功能的价值量则以禁牧2年的典型草原为最高。禁牧可以显著提高典型草原的生态系统服务功能，但长期禁牧不利于典型草原生态系统服务功能的提高和维持。
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| 关 键 词： | 禁牧 典型草原 生态系统服务 价值评价 |
Evaluation on the impact of non-grazing on the services of typical steppe ecosystems |
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| XU Qing,XU Zhong-qi,WANG Ying-shun.Evaluation on the impact of non-grazing on the services of typical steppe ecosystems[J].Pratacultural Science,2012,29(3):364-369. |
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| Authors: | XU Qing XU Zhong-qi WANG Ying-shun |
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| Institution: | 1.Agricultural University of Hebei,Baoding 071000,China;2.The State Meteorological Observation Station of Xilinhot Department of Meteorology of Xilinguole League,Xilinhot 026000,China) |
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| Abstract: | In order to understand the impact of non-grazing on the services of typical steppe ecosystems quantitatively,the services of typical steppes under grazing and non-grazing with different periods(2 years,7 years and 17 years) were evaluated.The result showed that non-grazing could raise the valuation of the services of typical steppe ecosystems,such as production,carbon sequestration,oxygen release,nutrient circle.The evaluation of production of typical steppes increased as the period of non-grazing increased,and that of the typical steppes with 17 years of non-grazing was highest.The evaluation of others,such as carbon sequestration,oxygen release,nutrient circle,is highest for typical steppes with 2 years of non-grazing.Non-grazing could improve services of typical steppe ecosystems,but non-grazing for a long time is not conducive to the improvement and maintenance of services of typical steppe ecosystems. |
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| Keywords: | non-grazing typical steppes ecosystem services evaluation |
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