| 区域景观生态风险空间分析 |
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| 引用本文： | 肖杨,毛显强.区域景观生态风险空间分析[J].中国环境科学,2006,26(5):0-0. |
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| 作者姓名： | 肖杨 毛显强 |
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| 作者单位： | 北京师范大学环境学院 北京100875 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 基于传统生态风险研究的缺陷,从景观尺度研究了人类活动和自然胁迫造成的生态风险,构建了景观生态风险指数,并分析了其相应参数.以山西省平遥县作为研究案例,计算其各网格景观生态风险指数,得出了该县景观生态风险的空间分布特征.结果表明,平遥县景观生态风险分布与区域内土地利用方式和强度,具有较高的相关关系,区域水文特征和人类活动是影响景观生态风险扩散的重要原因.
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| 关 键 词： | 景观生态系统 景观生态风险指数 景观生态安全格局 山西省平遥县 |
| 文章编号： | 1000-6923(2006)05-0623-04 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 2005年11月7日 |
Spatial analysis of regional landscape ecological risk |
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| XIAO Yang,MAO Xian-qiang.Spatial analysis of regional landscape ecological risk[J].China Environmental Science,2006,26(5):0-0. |
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| Authors: | XIAO Yang MAO Xian-qiang |
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| Abstract: | Based on the traditional the accumulative effect, the ecological risk resulted from human activities and natural coerce was studied from the landscape scale. The landscape ecological risk index (LERI) was made up and its corresponding parameters were analyzed. Using Pingyao County, Shanxi Province, as study case example, the LERI of every grid was calculated, and the spatial distribution characteristics of landscape ecological risk (LER) of this county were obtained. The LER distribution and the land-use type and intensity, possessed relatively high correlativity, regional hydrology characteristic and human activity were the important causes affecting the LER diffusion. |
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| Keywords: | landscape ecosystem landscape ecological risk index ecological security pattern Pingyao County Shanxi Province |
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