Science in China Series D: Earth Sciences

, Volume 52, Issue 11, pp 1857–1863 | Cite as

The characteristics of atmospheric CO2 concentration variation of four national background stations in China

  • LiXin Liu
  • LingXi Zhou
  • XiaoChun Zhang
  • Min Wen
  • Fang Zhang
  • Bo Yao
  • ShuangXi Fang
Article
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Accepted:

Abstract

Atmospheric carbon dioxide is an important kind of greenhouse gas which influences global temperature. Its concentration variation could indicate the distribution of human and natural activities in various regions. Through the non-dispersive infrared method, flask sampling of atmospheric CO2 concentration was measured weekly at four national background stations including Waliguan, Shangdianzi, Lin’an, and Longfengshan. Based on the data collected from September 2006 to August 2007, along with the Waliguan station’s experience on in situ observational data processing, the selection methods for sampling data through the atmospheric background CO2 concentration analysis were preliminarily discussed. On the basis of this result, the variation features of the four typical regions’ atmospheric background CO2 concentration was analyzed for the first time. The results show that the atmospheric CO2 concentration at Waliguan, Shangdianzi, Lin’an, and Longfengshan is 383.5, 385.9, 387.8, and 384.3 ppm, respectively. During the research period, CO2 concentration at the Waliguan station changed slightly. However, the CO2 concentration changed sharply at the Shangdianzi and the Lin’an stations due to the great influence of human activities in the Jingjinji and the Changjiang Delta economic zones, and changed regularly with seasons at Longfengshan station under dual influences of human activities and plant photosynthesis. The results from this study can lay the foundation for more profound studies on atmospheric CO2 concentration level of different areas in China, and could be used to improve the understanding of carbon source and sink distribution.

Keywords

atmospheric CO2 flask sampling background data selection CO2 concentration regional difference 
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Copyright information

© Science in China Press and Springer Berlin Heidelberg 2009

Authors and Affiliations

  • LiXin Liu
    • 1
  • LingXi Zhou
    • 1
  • XiaoChun Zhang
    • 1
  • Min Wen
    • 1
  • Fang Zhang
    • 1
  • Bo Yao
    • 1
  • ShuangXi Fang
    • 1
  1. 1.Key Laboratory for Atmospheric Chemistry, Centre for Atmosphere Watch and Services (CAWAS)Chinese Academy of Meteorological Sciences (CAMS), China Meteorological Administration (CMA)BeijingChina

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