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Energy and Mass Exc...
Energy and Mass Exchange and the Productivity of Main Siberian Ecosystems (from Eddy Covariance Measurements). 2. Carbon Exchange and Productivity
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Tchebakova, N. M. (author)
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Vygodskaya, N. N. (author)
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- Arneth, Almut (author)
- Lund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science
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Marchesini, L. Belelli (author)
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Kurbatova, Yu. A. (author)
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Parfenova, E. I. (author)
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Valentini, R. (author)
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Verkhovets, S. V. (author)
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Vaganov, E. A. (author)
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Schulze, E. -D. (author)
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(creator_code:org_t)
- 2015
- 2015
- English.
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In: Biology Bulletin of the Russian Academy of Science. - 1062-3590. ; 42:6, s. 579-588
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Abstract
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- Direct measurements of CO2 fluxes by the eddy covariance method have demonstrated that the examined middle-taiga pine forest, raised bog, true steppe, and southern tundra along the Yenisei meridian (similar to 90 degrees E) are carbon sinks of different capacities according to annual output. The tundra acts as a carbon sink starting from June; forest and bog, from May; and steppe, from the end of April. In transitional seasons and winter, the ecosystems are a weak source of carbon; this commences from September in the tundra, from October in the forest and bog, and from November in the steppe. The photosynthetic productivity of forest and steppe ecosystems, amounting to 480-530 g C/(m(2) year), exceeds by 2-2.5 times that of bogs and tundras, 200-220 g C/(m(2) year). The relationships between the heat balance structure and CO2 exchange are shown. Possible feedback of carbon exchange between the ecosystems and atmosphere as a result of climate warming in the region are assessed.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Multidisciplinär geovetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geosciences, Multidisciplinary (hsv//eng)
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- By the author/editor
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Tchebakova, N. M ...
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Vygodskaya, N. N ...
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Arneth, Almut
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Marchesini, L. B ...
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Kurbatova, Yu. A ...
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Parfenova, E. I.
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show more...
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Valentini, R.
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Verkhovets, S. V ...
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Vaganov, E. A.
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Schulze, E. -D.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Climate Research
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Geosciences Mult ...
- Articles in the publication
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Biology Bulletin ...
- By the university
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Lund University