| 东莞市城市热环境时空变化及其驱动机制 |
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| 引用本文： | 陈明辉,陈颖彪,郭冠华,冯志新.东莞市城市热环境时空变化及其驱动机制[J].地理研究,2011,30(8):1431-1438. |
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| 作者姓名： | 陈明辉 陈颖彪 郭冠华 冯志新 |
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| 作者单位： | 1. 中山大学地理科学与规划学院,广州 510275;
2. 东莞市地理信息与规划编制研究中心,东莞 523129;
3. 广州大学地理科学学院,广州 510006 |
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| 基金项目： | 国家自然科学基金重点项目(40830532);住房和城乡建设部科学计划项目(2009-K9-2) |
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| 摘 要： | 东莞市处于快速城市化进程中,基于19902005年Landsat TM/ETM＋反演地表温度,对地表温度数据进行归一化处理,分析东莞市热环境格局的时空变化特征,并引入建筑密度和交通干道对区域热环境格局的形成机制进行分析。研究表明：东莞市在近15年间城市热环境格局发生重大变化,随着城市建设用地的扩张,热岛由起初的分散点状...
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| 关 键 词： | 热环境 时空变化 驱动力 东莞市 |
| 收稿时间： | 2011-05-25 |
Temporal and spatial changes of urban thermal environment and driving mechanism in Dongguan City |
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| CHEN Ming-hui,CHEN Ying-biao,GUO Guan-huan,FENG Zhi-xin.Temporal and spatial changes of urban thermal environment and driving mechanism in Dongguan City[J].Geographical Research,2011,30(8):1431-1438. |
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| Authors: | CHEN Ming-hui CHEN Ying-biao GUO Guan-huan FENG Zhi-xin |
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| Institution: | 1. Geography and Planning School of Sun Yat-Sen University, Guangzhou 510275, China;
2. The Research Center of Geographic Information and Urban Planning of Dongguan City, Dongguan 523129, China;
3. School of Geographical Sciences, Guangzhou University, Guangzhou 510006, China |
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| Abstract: | This paper takes Dongguan with rapid urbanization development as a typical example. It uses Landsat TM/ETM+ remote sensing images as data sources to calculate the land surface temperature in the study area. After having the land surface temperature normalized we analyzed the spatial pattern changes of heat environment. What''s more, we introduced built-up density and main roads to explore the mechanism of heat environment spatial pattern and find the relationship between these factors and urban heat pattern. The results showed that the spatial pattern of urban thermal environment in Dongguan changed a lot in the past 15 years. With the expansion of urban areas, heat island changed from a diffuse heat spot to a strip or zonal shape. Relativity analysis showed that the urban heat spatial pattern in Donguang is closely related with built-up density. Urban heat effect became feeble as the distance far from the main roads. |
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| Keywords: | urban thermal environment changes of spatial pattern mechanism Dongguan |
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