Journal
RUSSIAN JOURNAL OF ECOLOGY
Volume 45, Issue 3, Pages 174-180Publisher
PLEIADES PUBLISHING INC
DOI: 10.1134/S1067413614030072
Keywords
forest ecosystems; mycorrhiza; heterotrophs; CO2 emission; carbon cycle
Categories
Funding
- Russian Foundation for Basic Research [10-04-92518-IK_a]
- Siberian Branch of the Russian Academy of Sciences [122]
- CRDF [RUG1-2979-KR-10]
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Mycorrhizal ingrowth collars were used to study the effect of tree species on the seasonal dynamics of carbon dioxide flux from three major sources of soil respiration: (1) plant roots, (2) mycorrhizal hyphae, and (3) microorganisms. Distinct seasonality in carbon transport to mycorrhizae was revealed, with its highest values being observed during the second half of the growing season. The annual amount of C transferred through mycorrhizae did not differ between the two tree species, and the contribution of mycorrhizae to soil surface CO2 emission was about 20%.
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