| 社会-生态系统框架（SES）下区域生态系统适应能力建模研究 |
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| 引用本文： | 徐瑱,祁元,齐红超,林长伟.社会-生态系统框架（SES）下区域生态系统适应能力建模研究[J].中国沙漠,2010,30(5):1174-1181. |
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| 作者姓名： | 徐瑱 祁元 齐红超 林长伟 |
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| 作者单位： | 中国科学院,寒区旱区环境与工程研究所,甘肃,兰州,730000 |
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| 摘 要： | 基于社会-生态系统框架下适应能力的概念，通过不良影响、抵御能力、恢复能力3个指标构建了生态系统适应能力指数模型ACI=CC·RC/EI，定量衡量区域生态系统对特定胁迫的适应能力并获得其空间分布情况。基于该模型，以兰州市为研究区，以水土流失为外界胁迫因素，评价了兰州市生态系统对水土流失的适应能力。结果表明,兰州市74%以上面积的区域水土流失适应能力指数为0.06~0.61，适应能力表现为中或低，生态系统总体具有高水土流失不良影响、低水土流失抵御能力及低水土流失恢复能力，在过耕、过牧等与水土流失恢复能力不一致的人类活动的胁迫下，易发生生态环境退化。
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| 关 键 词： | 适应能力 不良影响 抵御能力 恢复能力 兰州 水土流失 |
| 收稿时间： | 2009-10-15 |
| 修稿时间： | 2010-2-19 |
Modeling of Ecosystem Adaptive Capability under the Framework of Social-Ecological System |
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| XU Zhen,QI Yuan,QI Hong-chao,LIN Chang-wei.Modeling of Ecosystem Adaptive Capability under the Framework of Social-Ecological System[J].Journal of Desert Research,2010,30(5):1174-1181. |
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| Authors: | XU Zhen QI Yuan QI Hong-chao LIN Chang-wei |
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| Institution: | Cold and Arid Regions Environment and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China |
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| Abstract: | Under the framework of Social-Ecological System(SES), the assessment of ecosystem adaptive capability is based on three factors: exposure index, coping capacity and recovering capacity. This paper presents a ecosystem adaptive capability model, ACI=CC·RC/EI (ACI is Adaptive Capacity Index; EI, CC, RC is Exposure Index, Coping Capacity, and Recovering Capacity respectively), to assess quantitatively ecosystem vulnerability. Then the ecosystem adaptive capability to soil erosion in Lanzhou is assessed based on the model. The results show that 74% of Lanzhou land has a low or medium adaptive capability to soil erosion, with adaptive capability index ranging from 0.06 to 0.61. As a whole, the adaptive capability to soil erosion in Lanzhou is presented as high exposure index, low coping capacity and low recovering capacity. |
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| Keywords: | adaptive capability exposure index coping capacity recovering capacity Lanzhou soil erosion |
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