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Journal of Forestry Research

, Volume 15, Issue 2, pp 107–112 | Cite as

Fluxes of soil carbon dioxide, nitrous oxide and firedamp in broadleaved/Korean pine forest

  • Xiao Dong-mei
  • Wang Miao
  • Wang Yue-si
  • Ji Lan-zhu
  • Han Shi-jie
Article

Abstract

To understand influence of litters on the emission/absorption of CO2, N2O and CH4 in broadleaved/Korean pine forest in Changbai Mountain, fluxes of soil CO2, N2O and CH4 were measured by closed static chamber technique, from Sept 3, 2002 to Oct 30, 2003 in two types of soil ecosystems, of which one was covered with litters on the surface soil, and the other had no litters. The results showed that litters had significant influences on CO2, N2O and CH4 fluxes (p<0.05). Their diurnal change patterns of plot with litters and litter-free plot were similar, and they all showed emission/absorption peak at 18:00. The diurnal change fluxes of CO2 and N2O of plot with litters were significantly higher than those of the litter-free plot, while the diurnal flux of CH4 of plot with litters was lower than that of litter-free plot. The fluxes of CO2, N2O, and CH4 showed the similar seasonal patternsfor both plots. The fluxes of CO2, CH4 showed their peak fluxes in June, but the fluxes of N2O showed its peak emissions in August. The annual fluxes of CO2 and N2O of plot with litters were significantly higher than those of the litter-free plot, while the annual flux of CH4 of plot with litters was lower than that of litter-free plot.

Keywords

Flux CO2, N2O and CH4 Seasonal variation Diurnal variation 

CLC number

S718.5 

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Copyright information

© Northeast Forestry University 2004

Authors and Affiliations

  • Xiao Dong-mei
    • 1
    • 3
  • Wang Miao
    • 1
  • Wang Yue-si
    • 2
  • Ji Lan-zhu
    • 1
  • Han Shi-jie
    • 1
  1. 1.Institute of Applied EcologyChinese Academy of SciencesShengyangP.R. China
  2. 2.Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingP. R. China
  3. 3.Graduate School of Chinese Academy of ScienceBeijingP.R China

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