| 基于RS/GIS和AHP-GPCA模型的青藏高原生态环境变迁综合评价 |
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| 引用本文： | 张继承,潘新春.基于RS/GIS和AHP-GPCA模型的青藏高原生态环境变迁综合评价[J].地球科学与环境学报,2011,33(4):434-440. |
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| 作者姓名： | 张继承 潘新春 |
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| 作者单位： | 国家海洋局海洋咨询中心,北京,100860 |
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| 基金项目： | 中国地质调查局项目(1212010510218) |
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| 摘 要： | 运用层次分析和全局主成分分析结合的综合统计评价模型(AHP-GPCA模型),以县域和流域为评价单元,以气温、降水、归一化差异植被指数(NDVI)、冰川密度、湿地密度、湖泊率、人口密度、荒漠化率等数据为评价指标基础,基于GS/GIS对20世纪70年代末期至2000年青藏高原生态环境变迁进行综合评价,并探讨了研究区生态环境...
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| 关 键 词： | AHP-GPCA模型 遥感 地理信息系统 生态环境变迁 综合评价 青藏高原 |
Comprehensive Assessment for Change of Ecological Environment in Qinghai-Tibet Plateau Based on RS/GIS and AHP-GPCA Model |
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| ZHANG Ji-cheng
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PAN Xin-chun.Comprehensive Assessment for Change of Ecological Environment in Qinghai-Tibet Plateau Based on RS/GIS and AHP-GPCA Model[J].Journal of Earth Sciences and Environment,2011,33(4):434-440. |
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| Authors: | ZHANG Ji-cheng PAN Xin-chun |
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| Institution: | ZHANG Ji-cheng,PAN Xin-chun(National Oceanic Consultation Center,State Oceanic Administration,Beijing 100860,China) |
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| Abstract: | Based on the comprehensive statistical assessment model with analytical hierarchy process and global principal component analysis(AHP-GPCA model) and RS/GIS,the changes of ecological environment in Qinghai-Tibet Plateau from late 1970s to 2000 were comprehensively assessed,and then the change of ecological environment and its spatial distribution were discussed.The assessment units were county and river basin,the assessment indicators were temperature,precipitation,normalized difference vegetation index(NDV... |
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| Keywords: | AHP-GPCA model RS GIS change of ecological environment comprehensive assessment Qinghai-Tibet Plateau |
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