武汉市地表亮温与植被覆盖关系定量分析

doi:10.13249/j.cnki.sgs.2009.05.740

地理科学 ›› 2009, Vol. 29 ›› Issue (5): 740-744.doi: 10.13249/j.cnki.sgs.2009.05.740

武汉市地表亮温与植被覆盖关系定量分析

张春玲, 余华, 宫鹏, 居为民

南京大学国际地球系统科学研究所, 江苏南京 210093

收稿日期:2009-01-11 修回日期:2009-05-16 出版日期:2009-09-20 发布日期:2009-09-20
作者简介:张春玲(1976- ),女,青海西宁人,博士研究生,主要从事RS应用研究。E-mail:zcling4436@sina.com
基金资助:
国家科技支撑计划项目(2006BAJ10B03)资助。

Relationship Between Land Brightness Temperature and Vegetation Abundance in Wuhan City

ZHANG Chun-ling, YU Hua, GONG Peng, JU Wei-min

International Institute for Earth System Science, Nanjing University, Nanjing, Jiangsu 210093

Received:2009-01-11 Revised:2009-05-16 Online:2009-09-20 Published:2009-09-20

摘要/Abstract

摘要： 利用2002年7月9日的ETM影像,提取武汉市的下垫面类型、地表亮温和植被覆盖度,探讨不同下垫面类型对地表亮温的影响;并采用分形维度计算方法, 研究代表样带的地表亮温和植被覆盖的分维值之间的相关性。结果表明:植被覆盖度越高,地表亮温越低。除水域外的下垫面类型中植被覆盖度与地表亮温存在显著的负相关,这种相关性高于地表亮温与NDVI之间的相关关系。对于样带的地表亮温和植被的分维值研究表明,亮温和植被覆盖度的分维值之间的相关系数高于亮温和NDVI的分维值之间的相关系数。

Abstract: We classified land use/land cover types and vegetation fraction and calculated land brightness temperature (LBT) from a Landsat Enhanced Thematic Mapper Plus (ETM+) image acquired on July 9, 2002. The fractal analysis of LBT and vegetation abundance was also conducted on 20 transects. Results showed that unmixed vegetation fraction was more negatively correlated with UHI than NDVI for most land cover types, except for water. Fractal analysis of image texture showed that the fractal dimension correlation between LBT and vegetation abundance was higher than that between LBT and NDVI.

中图分类号:

TP79/P463.3

张春玲, 余华, 宫鹏, 居为民. 武汉市地表亮温与植被覆盖关系定量分析[J]. 地理科学, 2009, 29(5): 740-744.

ZHANG Chun-ling, YU Hua, GONG Peng, JU Wei-min. Relationship Between Land Brightness Temperature and Vegetation Abundance in Wuhan City[J]. SCIENTIA GEOGRAPHICA SINICA, 2009, 29(5): 740-744.

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武汉市地表亮温与植被覆盖关系定量分析

Relationship Between Land Brightness Temperature and Vegetation Abundance in Wuhan City

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