摘要
郑州城区大气CO2浓度日变化比较强烈,变化幅度在26.24～64.34μmol.mol-1,全天最低值出现在15时前后,最高值则出现在夜间至清晨。从季节来看,夏、秋两季的日变化幅度比冬、春两季的大。其中,1月份平均浓度达到最高,为455.80μmol.mol-1;7月份平均浓度则最低,为369.25μmol.mol-1。影响郑州城区大气CO2浓度变化的原因是人为取暖活动及植被的季节变化,另外一些气象因素也对CO2浓度有一定的影响。
The diurnal change of the atmospheric CO2 concentration is greatly in Zhengzhou urban area. The change range is from 26.24 to 64.34 μmol·mol^-1, the lowest value appeared at about 15：00 and the highest value appeared during nighttime to morning. The diurnal change range in summer and fall are bigger than that of winter and spring. It showed that the mean CO2 concentration maximum value is 455.80 μmol·mol^-1 , which appeared in January; and the minimum value is 369.25 μmol·mol^-1 , which appeared in July. The influence factors of the atmospheric CO2 concentration in Zhengzhou are the anthropogenic heating activities, the vegetation seasonal variation, and some meteorological factors.
出处
《气象与环境科学》
2013年第1期40-43,共4页
Meteorological and Environmental Sciences
基金
公益性行业(气象)科研专项(GYHY201106029)
河南省气象局科研项目(Z200707)资助
关键词
大气CO2浓度
季节变化
日变化
影响因素
atmospheric CO2 concentration
seasonal change
diurnal change
influence factor
