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摘要: |
以三峡库区(万州地区)为例,研究了三峡库区万州区景观总体格局以及各景观类型格局的演变规律;利用万州区1995、2000、2006、2009年的TM影像,在3S技术支持下,结合重庆市生态环境特征,利用计算机自动分类和目视判读的方法,将影像数据矢量化,并对多样性指数、均匀度指数、优势度指数、破碎度指数、分维数指数5类景观格局指数进行了详细的分析;结果表明:研究区在14年间景观类型主体没有显著变化,仍然以耕地和林地为主,但耕地优势度总体趋于减少,林地得以回升;景观受到人为干扰因素增强,斑块形状趋于规整;景观整体 |
关键词: 景观格局 三峡库区 3S技术 景观格局指数 |
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Analysis of Landscape Pattern in Three Gorges Reservoir Area Based on RS and GIS |
CHEN Dan,ZHOU Qi-gang,HUANG Yong-an,GUO Kai-rui,WU Yan-mei,WEI Ling
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Abstract: |
Taking Three Gorges Reservoir area(Wanzhou District) as an example,this paper studies the evolution law of overall landscape pattern of Wanzhou District and each Landscape pattern type,makes image data vector by using TM images of Wanzhou District in 1995,2000 and 2009,based on 3S technology and the characteristics of eco-environment of Chongqing and by using computer automatic classification and visual identification method,and ... |
Key words: landscape pattern Three Gorges Reservoir area 3S technology landscape pattern index |