[1]CHEN Qian,ZHOU Qi-gang,JIN Ya-mei.Research on Temporal and Spatial Changes of Land Thermal Environment Based on Landsat TM in Chongqing Metropolitan Area[J].Research of Soil and Water Conservation,2014,21(06):84-89.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 06
Page number:
84-89
Column:
Public date:
2014-12-28
- Title:
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Research on Temporal and Spatial Changes of Land Thermal Environment Based on Landsat TM in Chongqing Metropolitan Area
- Author(s):
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CHEN Qian, ZHOU Qi-gang, JIN Ya-mei
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School of Tourism and Land Resources, Chongqing Technology and Business University, Chongqing 400067, China
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- Keywords:
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urban thermal environment; generalized single channel method; construction expansion; underlying surface; Chongqing metropolitan area
- CLC:
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X144
- DOI:
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- Abstract:
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With the speedup of the urbanization and economic, a series changes of urban structure happened, which had a great influence on urban ecological environment, particularly on the heat island effect. Chongqing metropolitan area was taken as study area, the three periods of TM images from 1988 to 2011 in summer were chosen as the basic data sources. Based on GIS and RS, land surface temperature was inversed by the single-window method. The temporal and spatial changes of land surface temperature, translation of heat island center and urban center were analyzed systematically in this paper. The relationship between urban thermal environment, urban expansion and city underlying surface were investigated. The results indicate that there are obvious distributions of land surface temperature from 1998 to 2011 and regional temperature increased. The effects of thermal environment become serious. The heat center has highly consistency with migration of urban center. The intensity of thermal environment effects has positive correlation with distribution of construction, but has negative correlation with distribution of vegetation cover or water area. The results can provide references for improving effects of thermal environment and optimizing ecological environment of urban area.