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Remote Sensing Technology and Application  2012, Vol. 27 Issue (2): 256-264    DOI: 10.11873/j.issn.1004-0323.2012.2.256
    
The Variation Analysis of Surface Heat Status and Vegetation Index of Fushun City in Recent 10 Years
Jia Baoquan1,2,3,Ma Mingjuan1,2,3
(1.Research Institute of Forestry,Chinese Academy of Forestry,Beijing 100091,China;2.Key Laboratory of Tree Breeding and Cultivation,State Forestry Administration,Beijing 100091,China;3.Research Centre of Urban Forestry,State Forestry Administration,Beijing 100091,China)
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Abstract  

Land use and land cover change is one of the hot issues in the study of global change,while surface temperature and vegetation are the important parameters to describe land cover characteristics.In this paper,TM satellite remote sensing images in 1999 and 2010 have been used to quantitatively analyze the urban thermal field and vegetation index of Fushun,provided theoretical and practical basis for the spatial layout and key construction of Fushuns construction of forest city.The results showed that,in the past 11 years (1999~2010),the average temperature of the thermal field of the city increased by 1.53 ℃,and the Urban Heat Island (UHI) concentratedly distributed in the built-up urban area of Fushun,as well as the Suzi River Valley and along the Heida highway,but the space distribution has been unprecedentedly compressed,distributed only in the built-up urban area.NDVI of Fushun edged down from 0.4764 in 1999 to 0.4756 in 2010.From the overall situation of vegetation coverage,the percentage of the area of high vegetation coverage is more than 60%,even more than 78%,whereas the percentage of the area of vegetation coverage below is very small,lower than 1.5%.From the variation of vegetation coverage,in the past 11 years,the percentage of the area of both high and relatively high vegetation coverage decreased by 3.22% and 2.31% respectively,and the percentage of the area of middle vegetation coverage increased by 4.94%,which,in total,shows that the citys ecological environment has been deteriorated.From the spatial change of vegetation coverage of the city,largest change area is the urban district,whose change is about 3 to 5 times more than the whole city.The change reasons of the thermal field and vegetation are:Firstly,the influence is from the warm and dry climate in the growing season.Secondly,the cropland and grassland decreased,while the land for construction increased rapidly.In addition,it has been influenled by the ecological construction of Fushun.

Key words:  Relative brightness temperature      Vegetation index      Vegetation coverage      Dynamic change      Fushun     
Received:  12 July 2011      Published:  23 January 2013
P 463.3  
  TP 79  
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Cite this article: 

Jia Baoquan,Ma Mingjuan. The Variation Analysis of Surface Heat Status and Vegetation Index of Fushun City in Recent 10 Years. Remote Sensing Technology and Application, 2012, 27(2): 256-264.

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http://www.rsta.ac.cn/EN/10.11873/j.issn.1004-0323.2012.2.256     OR     http://www.rsta.ac.cn/EN/Y2012/V27/I2/256

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