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Chinese Journal of Applied Ecology ›› 2017, Vol. 28 ›› Issue (10): 3385-3392.doi: 10.13287/j.1001-9332.201710.017

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Effects of urban wetlands with different shapes on the temperature and humidity of ambient environment.

JI Peng1,ZHU Chun-yang2, SHENG Yun-yan1*   

  1. 1. College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China;
    2. Department of Landscape Architecture, Huazhong Agricultural University, Wuhan 430070, China
  • Received:2016-12-28 Revised:2017-06-30 Online:2017-10-18 Published:2017-10-18
  • Supported by:

    This work was supported by the Science and Technology Research Project of Department of Education, Heilongjiang Province, China (12541581).

Abstract: To quantify the effects of urban wetlands on temperature and humidity of ambient environment, five urban wetlands with different shapes and surroundings were selected in Daqing City, and the air temperature and relative humidity were investigated in spring, summer and autumn using small-scale quantitative measurement method. The results indicated that the urban wetlands with different shapes all could decrease the temperature and increase the humidity, with the effect being strongest in summer, followed by in spring, and the smallest effect in autumn. The shape of the urban wetland had significant effect on temperature and humidity, which decreased in the order of irregular-shaped wetland > regular-shaped wetland (subcircular-shaped wetland, subcuboid-shaped wetland) > long-shaped wetland. The diurnal variation of temperature and humidity was influenced by the ambient temperature, namely the effect of wetlands was weak in morning and evening, but strong at noon. The maximum effect occurred at12:00-14:00 in spring and autumn, and at 14:00-16:00 in summer.