| RS和GIS支持下的生态风险评估——以塔里木河下游为例 |
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| 引用本文： | 舒成强,蒋良群,陈曦,谌柯,刘辉.RS和GIS支持下的生态风险评估——以塔里木河下游为例[J].测绘科学,2009,34(3). |
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| 作者姓名： | 舒成强 蒋良群 陈曦 谌柯 刘辉 |
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| 作者单位： | 1. 西华师范大学国土资源学院,四川,南充,637002
2. 中国科学院新疆生态与地理研究所,乌鲁木齐,830011 |
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| 基金项目： | 西华师范大学科研启动基金，国家重大工程项目，四川省教育厅科学研究项目 |
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| 摘 要： | 目前为止,生态风险评估还没有一套完整的方法体系。本文以我国最大的内陆河-塔里木河下游区段为研究区域,将遥感、地理信息系统等先进技术手段与模糊数学方法相结合,根据ERA框架和层次分析思想建立塔河下游植被的生态风险评估指标,运用模糊综合评判的方法进行塔河下游植被生态风险的遥感定量评估;在评估结果的基础上进行可视化分析。结果表明:在流域生态风险评估缺乏有效的定量评估方法的情况下,Fuzzy集合论与AH P方法结合的模糊综合评判方法是可行的,具有较高的科学性;运用遥感、地理信息系统等先进的技术手段,实现了评估结果的定性、定量和可视化。
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| 关 键 词： | 生态风险 遥感 地理信息系统 模糊综合评估 |
Ecological risk assessment based on remote sensing and geographic information system——A case study in the lower reaches of Tarim river |
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| SHU Cheng-qiang,JIANG Liang-qun,CHEN Xi,CHEN Ke,LIU Hui.Ecological risk assessment based on remote sensing and geographic information system——A case study in the lower reaches of Tarim river[J].Science of Surveying and Mapping,2009,34(3). |
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| Authors: | SHU Cheng-qiang JIANG Liang-qun CHEN Xi CHEN Ke LIU Hui |
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| Abstract: | There still being short of a set of integrated method to assess ecological risk at present.Taking the lower breaches of Tarim river,the biggest continental river in China,as study area,a vegetation ecological risk assessment was accomplished based on fuzzy synthetic evaluation and remote sensing and geographic information system.The conceptual frame of ERA and ideology of analytic hierarchy process(AHP) were used to establish the index system in the process of assessment.On the basis of the results from eco... |
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| Keywords: | ecological risk remote sensing geographic information system fuzzy synthetic evaluation |
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