我国西南山区城市化起步晚、发展慢,城市化水平较低.由于西南山区特殊的地形和生态条件,城市化发展对区域气候将会产生一定影响.利用相关分析和回归分析方法,探讨了绵阳市1985-2014年城镇化与区域气候(气温、降水、干燥度)的关系.研究表明,绵阳的气候要素出现了不同的变化趋势,其中温度出现了明显的上升趋势,干燥度出现了下降的趋势,降水变化不大.城镇化发展对气温产生的影响较大,随着城镇化率的升高,区域温度也会升高,城镇化率每增加1个百分点,平均气温将增加0.048 ℃;而城镇化率对降水量和干燥度的影响相对较小.%The development of urbanization in the mountainous area of Southwest China is late,the level of urbanization is low.Because of the special terrain and ecological conditions in the Southwest mountainous area,the development of urbanization will have a certain impact on regional climate.This paper uses correlation analysis and regression analysis method to discuss the relationship between urbanization and regional climate (temperature,precipitation and dryness)in Mianyang City from 1985 to 2014.Research shows the climatic factors in Mianyang have different trends,where the temperature appears a clear upward trend,there is a decline in the degree of dryness,precipitation change is not.The influence of urbanization development on air temperature is great,with the increase of urbanization rate,regional temperature will also increase.Urbanization rate increases by one percentage point,the average temperature will increase by 0.048 ℃,the influence of urbanization rate on precipitation and dryness is relatively small.
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