[1]WU Baojun,LEI Yakai,DUAN Yanbo,et al.Assessment and Prediction of Urban Heat Island Effect in Zhengzhou City Based on Markov Model[J].Research of Soil and Water Conservation,2017,24(03):241-245.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 03
Page number:
241-245
Column:
Public date:
2017-06-28
- Title:
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Assessment and Prediction of Urban Heat Island Effect in Zhengzhou City Based on Markov Model
- Author(s):
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WU Baojun, LEI Yakai, DUAN Yanbo, PENG Dandan, TIAN Guohang
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College of Forestry, He’nan Agricultural University, Zhengzhou 450002, China
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- Keywords:
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heat island effect; Markov model; Zhengzhou City
- CLC:
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X171.1
- DOI:
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- Abstract:
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The dynamic changes of the thermal environment were analyzed based on the TM remote sensing of Zhengzhou City, and the thermal environment development trend in the next 9 years was predicted by the Markov model. The results showed that during the period from 2000 to 2013, the heat island effect changed with the movement of urban development in Zhengzhou City. The heat island type within the fourth Rings deteriorated. The heat island type in the third ring was transferred from the sub low temperature zone and the middle temperature zone to the high temperature zone. The heat island type was transferred from the sub low temperature zone to the middle temperature zone between the third ring and the fourth ring region. The rise of surface temperature of southeast fourth ring region was caused by the factory relocation. Most of the rest zones were still in the low temperature regions. In the next 9 years, the effect of urban heat island in Zhengzhou City is likely to be intensified by the existing human factors. By the end of 2022, the areas of heat island in the low temperature zone, sub low temperature, middle temperature zone, high temperature zone, and super high temperature area were 0.41%, 21.01%, 68.96%, 9.19%, and 0.38%, respectively. The decrease of vegetation and the increase of buildings were the main reasons for the enhancement of heat island effect, and vegetation and water area will decrease the heat island effect.