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Moscow University Soil Science Bulletin

, Volume 73, Issue 2, pp 81–88 | Cite as

Spatial Variability of Carbon Dioxide Emission by Soils in the Main Types of Forest Ecosystems at the Zvenigorod Biological Station of Moscow State University

  • G. N. Koptsik
  • Yu. V. Kupriianova
  • M. S. Kadulin
Soil Biology
  • 12 Downloads

Abstract

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.

Keywords

carbon fluxes soil respiration root respiration microbial biomass temperature soil moisture 

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Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  • G. N. Koptsik
    • 1
  • Yu. V. Kupriianova
    • 1
  • M. S. Kadulin
    • 1
  1. 1.Faculty of Soil ScienceMoscow State UniversityMoscowRussia

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