Chinese Science Bulletin

, Volume 47, Issue 14, pp 1217–1220 | Cite as

CO2 background concentration in the atmosphere over the Chinese mainland

  • Gengchen Wang
  • Yupu Wen
  • Qinxin Kong
  • Lixin Ren
  • Mulin Wang


Based on the long-term monitoring data on CO2 concentration, variation trend and characteristics of CO2 background concentration in the atmosphere over the Chinese mainland are analyzed. Results show that the increasing trend of CO2 background concentration in the atmosphere over the Chinese mainland has appeared during the period of 1991–2000. The average annual CO2 growth increment is 1.59 μL/L, and the average annual CO2 growth rate is 0.44%. Distinct seasonal variations of CO2 background concentration are observed, and the averaged amplitude of CO2 seasonal variations is 10.35 μL/L. Regional variation characteristics of CO2 background concentration in the atmosphere and possible impact of human activities on these variations over the Chinese mainland are discussed as well.


CO2 background concentration Chinese mainland CO2 growth rate CO2 seasonal variation CO2 regional variation CO2 variation trend 


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Copyright information

© Science in China Press 2002

Authors and Affiliations

  • Gengchen Wang
    • 1
  • Yupu Wen
    • 2
  • Qinxin Kong
    • 1
  • Lixin Ren
    • 1
  • Mulin Wang
    • 2
  1. 1.Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina
  2. 2.Academy of Meteorological SciencesChina Meteorological AdministrationBeijingChina

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