Spatial Variability of Carbon Dioxide Emission by Soils in the Main Types of Forest Ecosystems at the Zvenigorod Biological Station of Moscow State University
Carbon dioxide (CO2) emission from the soil surface in forest biogeocenoses of the Zvenigorod Biological Station of Moscow State University in summer varies on average from 120 to 350 mg C–CO2/(m2 h) and depends on the hydrothermal conditions (soil moisture and temperature) and the type of phytocenosis. The intensity of CO2 emission in the biogeocenosis does not depend on its parcel structure and varies with respect to plant microgroups: it is maximum in oxalis pine–spruce and maple–lime forests and bracken spruce–birch forests and minimum in areas of forest fall without vegetation. The upper (from 0 to 20 cm thick) soil layer provides up to 50% of the total soil CO2 emission. The role of microbial respiration in the total CO2 emission from soils is determined by weather conditions and varies from 9–33% in a dry summer to 55–75% in a summer with favorable temperature and moisture.
Keywordscarbon fluxes soil respiration root respiration microbial biomass temperature soil moisture
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- 1.Dobrovol’skii, G.V. and Nikitin, E.D., Ekologiya pochv. Uchenie ob ekologicheskikh funktsiyakh pochv (Soils Ecology. Theory of Soils Ecological Functions), Moscow, 2012.Google Scholar
- 5.Karelin, D.V., Pochikalov, A.V., and Zamolodchikov, D.G., The increasing effect of CO2 emission at Valday forests decay gaps, Izv. Akad. Nauk, Ser. Geogr., 2017, no. 2.Google Scholar
- 7.Koptsik, G.N., Vladychenskii, A.S., and Gavrilov, V.M., Organization of soil-ecological monitoring in forest ecosystems Zvenigorod Biological Station of Moscow State University, Tr. Zvenigorodsk. Biol. Stn., Mosk. Gos. Univ., 2011, vol. 5.Google Scholar
- 9.Kurganova, I.N., Carbon dioxide emission and balance in Russian ecosystems, Extended Abstract of Doctoral (Biol.) Dissertation, Moscow, 2010.Google Scholar
- 11.Naumov, A.V., Dykhanie pochvy: sostavlyayushchie, ekologicheskie funktsii, geograficheskie zakonomernosti (Soil Respiration: Components, Ecological Functions, and Geographic Regularities), Novosibirsk, 2009.Google Scholar
- 12.Puly i potoki ugleroda v nazemnykh ekosistemakh Rossii (Carbon Pools and Flows in Russian On-Ground Ecosystems), Zavarzin, G.A., Ed., Moscow, 2007.Google Scholar
- 13.Smagin, A.B., Gazovaya faza pochv (Soils Gas Phase), Moscow, 2005.Google Scholar
- 18.Jassal, R., Black, A., Novak, M., et al., Relationship between soil CO2 concentrations and forest floor CO2 effluxes, Agric. For. Meteorol., 2005, vol. 130, nos. 3–4.Google Scholar
- 19.Schlesinger, W.H. and Andrews, J.A., Soil respiration and the global carbon cycle, Biogeochemistry, 2000, vol. 48, no. 1.Google Scholar