| 上海城市热场与植被覆盖的关系研究 |
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| 引用本文： | 武佳卫,徐建华,谈文琦.上海城市热场与植被覆盖的关系研究[J].遥感技术与应用,2007,22(1):26-30. |
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| 作者姓名： | 武佳卫 徐建华 谈文琦 |
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| 作者单位： | (1.华东师范大学地理系地理信息科学教育部重点实验室,上海 200062;2.上海绿化管理信息中心,上海 200040) |
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| 摘 要： | 以TM和ETM+遥感数据,反演了自20世纪80年代以来的6个特定年份的上海市地表温度,并以此来分析上海城市热岛扩展的时空演变格局,结果表明:上海城市热岛范围不断扩大,强度不断增加,分布格局逐渐由集中分布呈现片状破碎化分布;上海市建成区的扩展是导致城市热岛范围扩大、强度加大的最直接,也是最根本的原因之一。相关分析和回归分析的结果表明:植被覆盖与地表温度具有明显的负相关关系,植被分布面积的增加对城市热岛强度的降低具有非常积极的
作用。
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| 关 键 词： | 城市热岛 地表温度 植被覆盖 Landsat 上海市 |
| 文章编号： | 1004-0323（2007）01-0026-05 |
| 收稿时间： | 2006-05-22 |
| 修稿时间： | 2006-09-19 |
Study on the Relationship of Urban Heat Island and Vegetation Abundance in Shanghai City |
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| WU Jia-wei,XU Jian-hua,TAN Wen-qi.Study on the Relationship of Urban Heat Island and Vegetation Abundance in Shanghai City[J].Remote Sensing Technology and Application,2007,22(1):26-30. |
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| Authors: | WU Jia-wei XU Jian-hua TAN Wen-qi |
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| Affiliation: | (1.Key Laboratory of Giscience Ministry of Education,Department of Geography,East China Normal;
University,Shanghai200062,China; 2.Shanghai Information Center for Virescence Management,Shanghai200040,China) |
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| Abstract: | Land surface temperature in six specific time since 1980 s were retrieved from TM and ETM remotely sensed data.The temporal-spatial evolvement patterns were analyzed and the results showed that the range of urban heat island in Shanghai city enlarged,and so did intensity.The concentrated distributions of UHI gradually turned to dispersed situation.The sprawl of built-up area is the main cause of enlargement of UHI's range and intensity.Correlation and regression analysis suggest that there is obvious negative correlationship between vegetation abundance and land surface temperature.It is very important to decrease UHI by increasing vegetation abundance in urban environmental management. |
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| Keywords: | Landsat |
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