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遥感技术与应用  2009, Vol. 24 Issue (5): 635-641    DOI: 10.11873/j.issn.1004-0323.2009.5.635
技术研究与图像处理     
基于遥感和GIS技术的青海湖环湖地区生态环境脆弱性评价
白艳芬1,2,马海州3,张宝成2,4,梁 继1,2,李 哲1,2,李宏毅1,2,郝晓华1,2,王 建1
1.中国科学院寒区旱区环境与工程研究所,甘肃 兰州 730000 ;
2.中国科学院研究生院,北京 100049; 3.青海盐湖研究所,青海 西宁 810008 ;
4.中国科学院地球环境研究所,陕西 西安 710075
Eco-environmental Vulnerability Analysis around Qinghai Lake Based on RS and GIS Technology
BAI Yan-fen1,2,MA Hai-zhou3,ZHANG Bao-cheng2,4,LIANG Ji1,2,LI Zhe1,2,LI Hong-yi1,2,HAO Xiao-hua1,2,WANG Jian1
1.Cold and Arid Region Environmental and Engineering Research Institute,Chinese Academy ofScience,Lanzhou 730000,China ; 2.Graduate University of the Chinese Academy of Sciences,Beijing 100049,China ; 3.Qinghai Institute of Salt Lakes,Chinese Academy ofSciences,Xining 810008,China; 4.Institute of Earth Environment,ChineseAcademy of Sciences,Xi’an  710075,China
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 全文: PDF(1239 KB)  
摘要:

以青海湖环湖地区为研究区,从生态环境脆弱性的影响因子和脆弱性形成的结果表现入手,通过遥感与GIS技术提取出8项生态因子包括植被指数、土壤亮度和土壤湿度指数、高程和坡度以及气温降水和土地利用作为评价指标,利用层次分析法(AHP)计算各评价指标的权重,然后计算研究区综合脆弱度,并根据统计结果将脆弱度的大小划分为微度脆弱、轻度脆弱、中度脆弱和重度脆弱4个不同等级。结果表明:研究区轻度脆弱和中度脆弱所占面积比例较大,分别占到研究区陆地面积的35.2%和40.7%,说明该区总体环境质量较好。

关键词: 遥感 GIS 脆弱生态环境 层次分析法 青海湖    
Abstract:

In this study, the area around Qinghai Lake was taken as the study area. According to the main reason of the formation of eco-environment and its result, eight evaluation indexes (including vegetation index, soil luminance and soil moisture, DEM and slope, temperature, precipitation and land use) were set up based on RS and GIS technology. The weight for every evaluation index was calculated with AHP method. The study area can be marked as four degree with qualitative and quantitative analysis: tiny vulnerability, little vulnerability, middle vulnerability and heavy vulnerability. The results showed that the areas in little vulnerability and middle vulnerability account for 35.2% and 40.7% respectively. It was concluded that the current status of the integral eco-environment quality of the research area are affirmative. It could provide theoretics for the governance to protect and formulate regional management by this research.

Key words: RS    GIS    Eco-environment vulnerability    AHP    Qinghai Lake
收稿日期: 2009-04-10 出版日期: 2010-08-24
基金资助:

国家重点基础研究发展计划(973计划)项目“陆表生态环境要素主被动遥感协同反演理论与方法”(2007CB714400)资助 |中国科学院西部行动计划(二期)项目“黑河流域遥感—地面观测同步试验与综合模拟平台建设”( KZCX2-XB2-09)。
 

通讯作者: 王建(1963-),研究员,博士生导师,主要从事寒区遥感应用和积雪水文模拟模型研究。E-mail:wjian@lzb.ac.cn。   
作者简介: 白艳芬(1982-),女,博士研究生,主要从事遥感与GIS技术在生态环境中的应用研究。E-mail:baiyfen@hotmail.com。
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引用本文:

白艳芬, 马海州, 张宝成, 梁 继, 李 哲, 李宏毅, 郝晓华, 王 建. 基于遥感和GIS技术的青海湖环湖地区生态环境脆弱性评价[J]. 遥感技术与应用, 2009, 24(5): 635-641.

BAI Yan-Fen, MA Hai-Zhou, ZHANG Bao-Cheng, LIANG Ji, LI Zhe, LI Hong-Yi, HAO Xiao-Hua, WANG Jian. Eco-environmental Vulnerability Analysis around Qinghai Lake Based on RS and GIS Technology. Remote Sensing Technology and Application, 2009, 24(5): 635-641.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2009.5.635        http://www.rsta.ac.cn/CN/Y2009/V24/I5/635

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