JOURNAL OF NATURAL RESOURCES >
Evaluation of Climate Comfortability for Human Settlement Environment in Northern Coastal Cities in Recent 60 Years——Taking Liaoning as a Case
Received date: 2012-01-10
Revised date: 2012-10-30
Online published: 2013-05-20
Urban settlement climate comfortability is human’s direct response of the weather condition. China’s northern coastal region has long been considered as one of the best living comfort climate regions. This paper evaluates the human settlement climate comfortability of Liaoning coastal cities based on the analysis of the basic climate change characteristics from 1951 to 2010, and evaluates urban human settlement climate comfortability of Liaoning coastal cities by the method of human comfort index, R/S and correlation analysis. The results showed: 1) Temperature change presents a warming trend at a rate of 0.311℃/10 a, which is consistent with global temperature change characteristics; precipitation, wind speed and relative humidity show a downward trend, being -12.795 mm/10 a, -0.193 m/s/10 a and -0.678%/10 a; the meteorological elements in the period 1960-1980 had evident mutations. 2) The settlement climate comfortability in Liaoning coastal cities is good over the past 60 years, the BCMI showed a clear upward trend during 1951 to 2010, which is consistent with global warming. Most people feel comfortable from April to October, and the most comfortable months are from June to September. Dalian is the city with best settlement climate comfortability in Liaoning coastal region. 3) The correlation analysis found that the temperature and wind speed are the most important factors affecting climate comfortability. By R/S analysis, it was found that the Hurst values of most elements were greater than 0.5, indicating that in the future temperature will continue to raise, precipitation, wind speed and relative humidity will maintain the current decreasing trend, the BCMI in Liaoning costal cities will increase too. According to interaction among urban development, climate change and habitat climate comfortability, we should respond to the global climate change actively and reduce the impact of human activities on climate.
Key words： coastal cities; urban human settlement; climate comfortability; Liaoning
REN Xue-hui, LI Ying, WANG Jian . Evaluation of Climate Comfortability for Human Settlement Environment in Northern Coastal Cities in Recent 60 Years——Taking Liaoning as a Case[J]. JOURNAL OF NATURAL RESOURCES, 2013 , 28(5) : 811 -821 . DOI: 10.11849/zrzyxb.2013.05.010
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