| 基于综合生态损失度的顺义区生态风险评价 | |
| 彭羽 ; 刘雪华 ; 张爽 ; 靳强 ; PENG Yu ; LIU Xuehua ; ZHANG Shuang ; JIN Qiang | |
| 2010-05-13 ; 2010-05-13 | |
| 关键词 | 生态风险评价 综合生态损失度 生态系统类型 地理信息系统 ecological risk assessment integrated ecological loss ecosystem types geographical information system X820.4 |
| 其他题名 | Ecological risk assessment of the Shunyi District,Beijing based on an analysis of the integrated ecological loss |
| 中文摘要 | 生态风险评价广泛应用于区域的生态影响评价,通过风险源、受体和暴露分析,来确定生态风险等级。该文以北京市顺义区为例,从分析区域生态系统类型入手,计算不同生态系统类型的生态指数、脆弱度和生态损失度,根据不同种类和级别生态风险源的综合风险权重,运用ArcGIS软件进行叠加分析,形成了3146个生态风险小区。结果部分确定了3个生态风险等级及其空间分布、风险特点以及管理对策,从而使生态风险评价过程更为完善。; Ecological risk assessments are widely applied in regional ecological impact assessments.The degree of ecological risk is normally determined by risk source analysis,risk receptor selection,exposure and hazard analysis of the risk receptor,and an integrated risk assessment.The Shunyi District of Beijing with its five ecosystems was used as an example.The ecological indices of fragility degree,ecological loss and risk source level of agriculture,forest,grassland,wetland and urban ecosystems were analyzed for 3 146 risk patches after overlaying the analysis within ArcGIS.Three regions with various risk levels were then developed by using statistical analysis.The characteristics of the three ecological regions in the Shunyi District are summarized with suggestions improved management of the areas.Therefore,this method could improve the assessment process. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/30420]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 彭羽,刘雪华,张爽,等. 基于综合生态损失度的顺义区生态风险评价[J],2010, 2010. |
| APA | 彭羽.,刘雪华.,张爽.,靳强.,PENG Yu.,...&JIN Qiang.(2010).基于综合生态损失度的顺义区生态风险评价.. |
| MLA | 彭羽,et al."基于综合生态损失度的顺义区生态风险评价".(2010). |
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