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Pools and fluxes of...
Pools and fluxes of carbon in three Norway spruce ecosystems along a climatic gradient in Sweden
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- Bergkvist, Bo (author)
- Lund University,Lunds universitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Department of Biology,Faculty of Science
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- Svensson, Magnus (author)
- KTH,Mark- och vattenteknik
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- Majdi, Hooshang (author)
- Biologi
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- Jansson, Per-Erik (author)
- KTH,Mark- och vattenteknik
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Langvall, O. (author)
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Bergkvist, B. (author)
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- Johansson, Maj-Britt (author)
- Swedish University of Agricultural Sciences
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- Weslien, Per, 1963 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för växt- och miljövetenskaper,Department of Plant and Environmental Sciences
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Truusb, L. (author)
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- Lindroth, Anders (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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Agren, G. I. (author)
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Berggren Kleja, Dan (author)
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(creator_code:org_t)
- 2007-07-12
- 2008
- English.
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In: Biogeochemistry. - : Springer Science and Business Media LLC. - 0168-2563 .- 1573-515X. ; 89:1, s. 7-25
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Abstract
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- This paper presents an integrated analysis of organic carbon (C) pools in soils and vegetation, within-ecosystem fluxes and net ecosystem exchange (NEE) in three 40-year old Norway spruce stands along a north-south climatic gradient in Sweden, measured 2001-2004. A process-orientated ecosystem model (CoupModel), previously parameterised on a regional dataset, was used for the analysis. Pools of soil organic carbon (SOC) and tree growth rates were highest at the southernmost site (1.6 and 2.0-fold, respectively). Tree litter production (litterfall and root litter) was also highest in the south, with about half coming from fine roots (< 1 mm) at all sites. However, when the litter input from the forest floor vegetation was included, the difference in total litter input rate between the sites almost disappeared (190-233 g C m(-2) year(-1)). We propose that a higher N deposition and N availability in the south result in a slower turnover of soil organic matter than in the north. This effect seems to overshadow the effect of temperature. At the southern site, 19% of the total litter input to the O horizon was leached to the mineral soil as dissolved organic carbon, while at the two northern sites the corresponding figure was approx. 9%. The CoupModel accurately described general C cycling behaviour in these ecosystems, reproducing the differences between north and south. The simulated changes in SOC pools during the measurement period were small, ranging from -8 g C m(-2) year(-1) in the north to +9 g C m(-2) year(-1) in the south. In contrast, NEE and tree growth measurements at the northernmost site suggest that the soil lost about 90 g C m(-2) year(-1).
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Keyword
- soil carbon
- boreal ecosystems
- climatic gradient
- coupmodel
- root litter
- dissolved organic carbon
- dissolved organic-carbon
- swedish forest soils
- nutrient availability
- nitrogen deposition
- root carbon
- matter
- turnover
- temperature
- decomposition
- dynamics
- CoupModel
- root
- litter
- soil carbon
- FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Bergkvist, Bo
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Svensson, Magnus
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Majdi, Hooshang
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Jansson, Per-Eri ...
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Langvall, O.
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Bergkvist, B.
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show more...
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Johansson, Maj-B ...
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Weslien, Per, 19 ...
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Truusb, L.
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Lindroth, Anders
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Agren, G. I.
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Berggren Kleja, ...
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- 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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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Physical Geograp ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Ecology
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
- Articles in the publication
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Biogeochemistry
- By the university
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University of Gothenburg
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Lund University
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Royal Institute of Technology
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University of Gävle