城市热岛效应及对锡林浩特气候变化的影响

利用气候相似性原理和锡林郭勒盟地区气象站站址变迁造成的温度序列变化差异,分析城市热岛效应对城市气温变化的作用,以及对气候变化趋势的影响。选取锡林浩特为代表城市,采用线性趋势分析、相关分析等方法,分析、讨论了城市与郊区气温差异,城市与草原温度历史演变差异,以及城市热岛效应对气候变化的影响等,结果表明：城市热岛效应对城市增温作用明显,使锡林浩特市区年平均气温比周围郊区增高了0.57℃;城市热岛效应对锡林浩特市气候变暖趋势也有一定影响,使锡林浩特相对草原区有0.07℃/10a的增温趋势。

The Influence of Urban Heat Island on Climatic Change of Xilinhot

Using climate similarity principle and the variation difference of temperature sequence caused by vicissitudes of meteorological station,the effect of urban heat island on temperature variation and climatic variation tendency was analyzed.Xilinhaote is the representative city,the temperature difference between city and suburbs,the historical development variation of temperature between city and grassland and the influence of urban heat island on temperature variation were analyzed and discussed by using linear trend analysis,correlation analysis and other methods.The results showed that the effect of urban heat island on temperature variation was obvious,the annual mean temperature of Xilinhot was high than suburbs,with the value was 0.57 ℃,the urban heat island also had effect on the tendency of climate warming,it engender warming trend with 0.07℃/10a on Xilinhot relative to suburbs.