引用本文:解淑艳.1994—2010年东亚地区CO2浓度变化特征及成因分析[J].环境监控与预警,2014,6(2):35-39
XIE Shu yan.Analysis of Source and Concentration Variations of Atmospheric CO2 in East Asia in 1994—2010[J].Environmental Monitoring and Forewarning,2014,6(2):35-39
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1994—2010年东亚地区CO2浓度变化特征及成因分析
解淑艳
中国环境监测总站
摘要:
在东亚地区选取5个大气本底观测站1994年以来观测的CO2监测资料,分析了各站大气CO2的时空变化特征,以及CO2主要人为源的变化及其影响。结果表明,5个本底站大气CO2年均值均呈明显升高趋势,2010年较1994年增长幅度为8.4%~9.0%;在北半球国家,CO2月均值有明显的季节变化,高值多出现在冬春等寒冷季节,低值多出现在夏季。减少化石燃料消耗量、增加森林覆盖率及农业覆盖率将对大气中CO2有削减作用。
关键词:  东亚地区  二氧化碳  大气本底观测站
DOI:
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基金项目:
Analysis of Source and Concentration Variations of Atmospheric CO2 in East Asia in 1994—2010
XIE Shu yan
Abstract:
Based on observed atmospheric CO2 concentrations at 5 background stations in East Asia since 1994,temporal and spatial variation characteristics and changesand impacts of the anthropogenic sourcesof atmospheric CO2 are analyzed.Results reveal that the annual average CO2 concentrations showed a clear upward trend, the concentration increased by 8.4%~9.0% in 2010 compared with 1994. Monthly average CO2 concentrations exhibit strong seasonal variations.The higher values prefer to present in cold seasons such as winter and spring,while the lower values appear mostly in summer seasons in northern hemisphere. Reducing the fossil fuel consumption, increasing the forest coverage and improving the agricultural coverage will help reduce the mean CO2 concentration in the atmosphere.
Key words:  East asia  CO2  Atmospheric background station