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Original Research Papers

Annual and seasonal CO2 fluxes from Russian southern taiga soils

Authors:

I. Kurganova ,

Institute of Physicochemical and Biological Problems in Soil Science, RAS, Pushchino, Moscow Region 142290, RU
About I.

ikurg@mail.ru

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V. Lopes De Gerenyu,

Institute of Physicochemical and Biological Problems in Soil Science, RAS, Pushchino, Moscow Region 142290, RU
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L. Rozanova,

Institute of Physicochemical and Biological Problems in Soil Science, RAS, Pushchino, Moscow Region 142290, RU
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D. Sapronov,

Institute of Physicochemical and Biological Problems in Soil Science, RAS, Pushchino, Moscow Region 142290, RU
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T. Myakshina,

Institute of Physicochemical and Biological Problems in Soil Science, RAS, Pushchino, Moscow Region 142290, RU
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V. Kudeyarov

Institute of Physicochemical and Biological Problems in Soil Science, RAS, Pushchino, Moscow Region 142290, RU
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Abstract

Annual and seasonal characteristics of CO2 emission from five different ecosystems were studied in situ (Russia, Moscow Region) from November 1997 through October 2000. The annual behaviour of the soil respiration rate is influenced by weather conditions during a particular year. Annual CO2 fluxes from the soils depend on land use of the soils and averaged 684 and 906 g C m−2 from sandy Albeluvisols (sod-podzolic soils) under forest and grassland, respectively. Annual emission from clay Phaeozems (grey forest soils) was lower and ranged from 422 to 660 g C m−2; the order of precedence was arable < grassland < forest. The coefficients of variation for annual CO2 fluxes caused by weather conditions ranged from 18% (forest ecosystem on Phaeozems) to 31% (agroecosystem). The contribution from the cold period (with snow, November—April) to the annual CO2 flux was substantial and averaged 21% and 14% for natural and agricultural ecosystems, respectively. The CO2 fluxes comprised approximately 48–51% in summer, 23–24% in autumn, 18–20% in spring and 7–10% in winter of the total annual carbon dioxide flux.

How to Cite: Kurganova, I., De Gerenyu, V.L., Rozanova, L., Sapronov, D., Myakshina, T. and Kudeyarov, V., 2003. Annual and seasonal CO2 fluxes from Russian southern taiga soils. Tellus B: Chemical and Physical Meteorology, 55(2), pp.338–344. DOI: http://doi.org/10.3402/tellusb.v55i2.16724
  Published on 01 Jan 2003
 Accepted on 22 Nov 2002            Submitted on 11 Jan 2002

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