| GIS、RS支持下的石羊河流域景观利用优化研究 |
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| 引用本文： | 魏伟,赵军,王旭峰.GIS、RS支持下的石羊河流域景观利用优化研究[J].地理科学,2009(5). |
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| 作者姓名： | 魏伟 赵军 王旭峰 |
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| 作者单位： | 西北师范大学地理与环境科学学院;中国科学院寒区旱区环境与工程研究所; |
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| 基金项目： | 国家自然科学基金重点项目(40671067); 甘肃省自然地理学重点学科项目(5001-048)资助 |
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| 摘 要： | 选择干旱内陆河石羊河流域为研究区,分析该流域过去20 a间在生态环境自然演替和人类活动干涉下的景观格局特征。从整体上看,研究区各景观类型的利用向非均匀化方向发展,说明区域内各景观类型间的比例差异进一步增加,这种变化在一定程度上反映了人类活动对景观整体的影响。依据累积耗费距离理论,采用最小累积阻力表面(MARS)和耗费表面(MCR)模型,借助表面扩散技术,研究了该流域景观结构紧密性和生态功能空间差异,进而构建源地、生态廊道和生态节点等景观组分来加强生态网络的空间联系,最后提出景观利用优化方案。
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| 关 键 词： | 地理信息系统 遥感 耗费阻力表面 景观利用优化 石羊河流域 |
Landscape Optimal Utilization of Shiyang River Basin Based on RS and GIS |
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| WEI Wei,ZHAO Jun,WANG Xu-feng.Landscape Optimal Utilization of Shiyang River Basin Based on RS and GIS[J].Scientia Geographica Sinica,2009(5). |
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| Authors: | WEI Wei ZHAO Jun WANG Xu-feng |
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| Institution: | WEI Wei1,ZHAO Jun1,WANG Xu-feng2(1.College of Geographical , Environment Science,Northwest Normal University,Lanzhou,Gansu 730070,2.Cold , Arid Regions Environmental , Engineering Research Institute,Chinese Academy of Sciences,Gansu 730000) |
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| Abstract: | Taking an arid interior district of the Shiyang River basin as study area,this paper analyzed the natural succession of ecological environment and the landscape pattern characteristics under the human activity interference in the past 20 years.The results showed that the landscape utilization developed to the heterogeneous direction,indicating the proportional difference between various landscape types was increasing.This kind of change has reflected the human activity's influence to the whole landscape on ... |
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| Keywords: | GIS RS cost resistance surface landscape optimization Shiyang River basin |
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