Partitioning of ecosystem respiration in a paludified shallow-peat spruce forest in the southern taiga of European Russia
Soil, tree stems, and ecosystem carbon dioxide fluxes were measured by chambers and eddy covariance methods in a paludified shallow-peat spruce forest in the southern taiga of European Russia (Tver region, 56° N 33° E) during the growing seasons of 2002–2012. The site was established in 1998 as part...
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IOP Publishing
2013-01-01
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Series: | Environmental Research Letters |
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Online Access: | https://doi.org/10.1088/1748-9326/8/4/045028 |
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author | J Kurbatova F Tatarinov A Molchanov A Varlagin V Avilov D Kozlov D Ivanov R Valentini |
author_facet | J Kurbatova F Tatarinov A Molchanov A Varlagin V Avilov D Kozlov D Ivanov R Valentini |
author_sort | J Kurbatova |
collection | DOAJ |
description | Soil, tree stems, and ecosystem carbon dioxide fluxes were measured by chambers and eddy covariance methods in a paludified shallow-peat spruce forest in the southern taiga of European Russia (Tver region, 56° N 33° E) during the growing seasons of 2002–2012. The site was established in 1998 as part of the EUROSIBERIAN CARBONFLUX project, an international field experiment examining atmosphere–biosphere interaction in Siberia and European Russia. In all years the observed annual cumulative net ecosystem flux was positive (the forest was a source of carbon to the atmosphere). Soil and tree stem respiration was a significant part of the total ecosystem respiration (ER) in this paludified shallow-peat spruce forest. On average, 49% of the ER came from soil respiration. We found that the soil fluxes exhibited high seasonal variability, ranging from 0.7 to 10 μmol m ^−2 s ^−1 . Generally, the soil respiration depended on the soil temperature and ground water level. In drought conditions, the soil respiration was low and did not depend on temperature. The stem respiration of spruces grew intensively in May, had permanently high values from June to the end of September, and in October it dramatically decreased. The tree stem respiration in midsummer was about 3–5 μmol m ^−2 s ^−1 for dominant trees and about 1–2 μmol m ^−2 s ^−1 for subdominant trees. The respiration of living tree stems was about 10–20% of the ER. |
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spelling | doaj.art-20387c94c90d4504ba5a69005c3c319c2023-08-09T14:40:07ZengIOP PublishingEnvironmental Research Letters1748-93262013-01-018404502810.1088/1748-9326/8/4/045028Partitioning of ecosystem respiration in a paludified shallow-peat spruce forest in the southern taiga of European RussiaJ Kurbatova0F Tatarinov1A Molchanov2A Varlagin3V Avilov4D Kozlov5D Ivanov6R Valentini7A N Severtsov Institute of Ecology and Evolution RAS , Leninsky Prospekt 33, Moscow 119071, Russia; Russian State Agrarian University—Moscow Timiryazev Agricultural Academy , Timiryazevskaya Str., 49, 127550 Moscow, Russian FederationA N Severtsov Institute of Ecology and Evolution RAS , Leninsky Prospekt 33, Moscow 119071, Russia; Weizmann Institute of Science , Rehovot, IsraelInstitute of Forest Science , Uspenskoye, Moscow region 143030, RussiaA N Severtsov Institute of Ecology and Evolution RAS , Leninsky Prospekt 33, Moscow 119071, RussiaA N Severtsov Institute of Ecology and Evolution RAS , Leninsky Prospekt 33, Moscow 119071, Russia; Russian State Agrarian University—Moscow Timiryazev Agricultural Academy , Timiryazevskaya Str., 49, 127550 Moscow, Russian FederationRussian State Agrarian University—Moscow Timiryazev Agricultural Academy , Timiryazevskaya Str., 49, 127550 Moscow, Russian Federation; Lomonosov Moscow State University , Leninskie Gory, Moscow 119991, RussiaRussian State Agrarian University—Moscow Timiryazev Agricultural Academy , Timiryazevskaya Str., 49, 127550 Moscow, Russian FederationRussian State Agrarian University—Moscow Timiryazev Agricultural Academy , Timiryazevskaya Str., 49, 127550 Moscow, Russian Federation; Tuscia University , Tuscia, ItalySoil, tree stems, and ecosystem carbon dioxide fluxes were measured by chambers and eddy covariance methods in a paludified shallow-peat spruce forest in the southern taiga of European Russia (Tver region, 56° N 33° E) during the growing seasons of 2002–2012. The site was established in 1998 as part of the EUROSIBERIAN CARBONFLUX project, an international field experiment examining atmosphere–biosphere interaction in Siberia and European Russia. In all years the observed annual cumulative net ecosystem flux was positive (the forest was a source of carbon to the atmosphere). Soil and tree stem respiration was a significant part of the total ecosystem respiration (ER) in this paludified shallow-peat spruce forest. On average, 49% of the ER came from soil respiration. We found that the soil fluxes exhibited high seasonal variability, ranging from 0.7 to 10 μmol m ^−2 s ^−1 . Generally, the soil respiration depended on the soil temperature and ground water level. In drought conditions, the soil respiration was low and did not depend on temperature. The stem respiration of spruces grew intensively in May, had permanently high values from June to the end of September, and in October it dramatically decreased. The tree stem respiration in midsummer was about 3–5 μmol m ^−2 s ^−1 for dominant trees and about 1–2 μmol m ^−2 s ^−1 for subdominant trees. The respiration of living tree stems was about 10–20% of the ER.https://doi.org/10.1088/1748-9326/8/4/045028CO2 fluxespaludified spruce foresttree stem respirationsoil respiration |
spellingShingle | J Kurbatova F Tatarinov A Molchanov A Varlagin V Avilov D Kozlov D Ivanov R Valentini Partitioning of ecosystem respiration in a paludified shallow-peat spruce forest in the southern taiga of European Russia Environmental Research Letters CO2 fluxes paludified spruce forest tree stem respiration soil respiration |
title | Partitioning of ecosystem respiration in a paludified shallow-peat spruce forest in the southern taiga of European Russia |
title_full | Partitioning of ecosystem respiration in a paludified shallow-peat spruce forest in the southern taiga of European Russia |
title_fullStr | Partitioning of ecosystem respiration in a paludified shallow-peat spruce forest in the southern taiga of European Russia |
title_full_unstemmed | Partitioning of ecosystem respiration in a paludified shallow-peat spruce forest in the southern taiga of European Russia |
title_short | Partitioning of ecosystem respiration in a paludified shallow-peat spruce forest in the southern taiga of European Russia |
title_sort | partitioning of ecosystem respiration in a paludified shallow peat spruce forest in the southern taiga of european russia |
topic | CO2 fluxes paludified spruce forest tree stem respiration soil respiration |
url | https://doi.org/10.1088/1748-9326/8/4/045028 |
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