| 近20年上海市不透水地表时空格局分析 |
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| 引用本文： | 谭春阳,匡文慧,徐天蜀,魏锦宏.近20年上海市不透水地表时空格局分析[J].测绘信息与工程,2014(3):71-74. |
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| 作者姓名： | 谭春阳 匡文慧 徐天蜀 魏锦宏 |
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| 作者单位： | 西南林业大学林学院;中国科学院地理科学与资源研究所;中国科学院东北地理与农业生态研究所; |
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| 摘 要： | 选取上海市近20年时间3期Landsat TM遥感影像，运用线性光谱混合模型和距离谱空间分析方法，提取城市不透水地表信息，分析其时空变化情况。研究结果表明，上海市近20年城市不透水地表迅速增长；不透水地表的平均密度从市中心到郊区随距离增加而梯度递减；不透水地表面积与密度水平存在分区差异。
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| 关 键 词： | 不透水地表 时空格局 线性光谱混合模型 |
Analyzing Spatio-temporal Pattern of Impervious Surface for Recent Two Decades in Shanghai |
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| TAN Chunyang,KUANG Wenhui,XU Tianshu,WEI Jinhong.Analyzing Spatio-temporal Pattern of Impervious Surface for Recent Two Decades in Shanghai[J].Journal of Geomatics,2014(3):71-74. |
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| Authors: | TAN Chunyang KUANG Wenhui XU Tianshu WEI Jinhong |
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| Institution: | 1 Southwest Forestry University, 300 Bailongsi, Kunming, 650224, China ; 2 Institute of Geographic Sciences and Nalural Resources Researeh, CAS .A 11 Datun Road, Beijing 100101 . China 3 Northeast institute of Geography and Agroecology, CAS, 3195 Weishan Road, Changchun, 130102. China ) |
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| Abstract: | In this paper, we developed a method of Linear Spec- tral Mixture Analysis （LSMA）to map impervious surface of Shanghai, which was derived from Landsat TM medium resolu- tion imageries in recent 20 years. Research result indicates that in the overall past two decades, impervious surface of Shanghai had a rapid growth, a regular decrease of impervious surface mean density occurred from downtown to suburbs with distance, and the area and its rate of impervious surface differs partially in administrative division. |
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| Keywords: | impervious surface spatio-temporal pattern spectral mixture aAnalysis |
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