Heat island effect and human body comfortable degree in Zhengzhou city

Abstract

Abstract: In this paper,the key factors of heat island effect in Zhengzhou city were monitored by grid method to study the diurnal and seasonal changes and the spatial distribution of the effect,and to evaluate the comfortable degree of human bodies at different sites of the city.The results showed that on the whole,the heat island effect had a unimodal diurnal change,while its intensity was distinctly different among seasons,being decreased in order of winter>spring>autumn>summer.The spatial distribution of heat island center was significantly related to its nearby industrial heat resources.As for the comfortable degree of human bodies,the People's Park was the best site because of its arbor virescence,while in the Xiliu Lake Park with lawn as its main greening type,its capability of improving microclimate was weaker.The railway station square still had 16% frequency of most comfortable degree,because of its open space and better air fluidity.

Key words: Zhengzhou city, Heat island effect, Heat island intensity, Comfortable degree

CLC Number:

ZHENG Jinggang, ZHANG Jingguang, LI You . Heat island effect and human body comfortable degree in Zhengzhou city[J]. Chinese Journal of Applied Ecology, 2005, 16(10): 1838-1842.

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