HUBEI AGRICULTURAL SCIENCES ›› 2019, Vol. 58 ›› Issue (24): 80-83.doi: 10.14088/j.cnki.issn0439-8114.2019.24.019

• Resource & Environment • Previous Articles     Next Articles

Research on relationship among CO2,CH4 and N2O emission fluxes from different marshs in Xiaoxing’an Mountains

SHI Lan-ying1, MOU Chang-cheng2   

  1. 1.College of History and Culture,Mudanjiang Teachers’College,Mudanjiang 157011,Heilongjiang,China;
    2.College of Forestry,Northeast Forestry University,Harbin 150040, China
  • Received:2019-03-20 Online:2019-12-25 Published:2019-12-25

Abstract: CO2,CH4 and N2O fluxes were measured using the technique of closed opaque chamber and gas chromatography system. The experiment was carried out during 2007—2008 growing seasons in field of Carex schmidtii marsh and Betulaovalifolia-Carex schmidtii shrub swamp ecosystems in Xiaoxing’an Mountains. The results showed that the two wetlands both were emission sources of greenhouse gases during growing seasons, except for the weak sink of N2O in shrub swamps in 2008. Excepted for CH4 and N2O were negatively correlated in the early growing season of Carex schmidtii marsh, there was a positively correlation between CO2 and CH4 emission fluxes, CO2 and N2O emission fluxes, and CH4 and N2O emission fluxes. But the level was different in various wetlands or seasons.

Key words: CO2 fluxes, CH4 fluxes, N2O fluxes, Carex schmidtii marshes, Betula ovalifolia-Carex schmidtii shrub swamp, Xiaoxing’, an Mountains

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