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Can distribution of...
Can distribution of trees explain variation in nitrous oxide fluxes?
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- Von Arnold, Karin (författare)
- Linköpings universitet,Tema vatten i natur och samhälle,Filosofiska fakulteten
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- Ivarsson, Maria (författare)
- Gothenburg University,Göteborgs universitet,Botaniska institutionen,Botanical Institute,Botanical Institute, Göteborg University, Göteborg, Sweden
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- Öqvist, Mats (författare)
- Department of Forest Ecology, Swedish University of Agricultural Sciences, Umå, Sweden
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- Majdi, Hooshang (författare)
- Högskolan i Gävle,Ämnesavdelningen för naturvetenskap,Biologi
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- Björk, Robert G., 1974 (författare)
- Gothenburg University,Göteborgs universitet,Botaniska institutionen,Botanical Institute,Botanical Institute, Göteborg University, Göteborg, Sweden
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- Weslien, Per, 1963 (författare)
- Gothenburg University,Göteborgs universitet,Botaniska institutionen,Botanical Institute,Botanical Institute, Göteborg University, Göteborg, Sweden
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- Klemedtsson, Leif, 1953 (författare)
- Gothenburg University,Göteborgs universitet,Botaniska institutionen,Botanical Institute,Botanical Institute, Göteborg University, Göteborg, Sweden
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(creator_code:org_t)
- 2007-02-18
- 2005
- Engelska.
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Ingår i: Scandinavian Journal of Forest Research. - : Informa UK Limited. - 0282-7581 .- 1651-1891. ; 20:6, s. 481-489
- Relaterad länk:
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http://urn.kb.se/res...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://gup.ub.gu.se...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The impact of distance to tree stems on nitrous oxide (N2O) fluxes was examined to determine whether it is possible to improve the accuracy of flux estimates from boreal forest soils. Dark static chambers were placed along transects between pairs of trees within a Norway spruce stand and fluxes of N2O and carbon dioxide (CO2) were measured during the period 1999-2003. The groundwater table was measured on every sampling occasion along the transects. In addition, radiation transmission, potential diffusion rate and biomass of forest floor vegetation were measured once at each chamber site along one of the transects and soil samples were collected at three depths, from which pH, denitrification enzyme activity, soil moisture, organic matter, and carbon and nitrogen content were determined. There was a high level of variation in the N2O fluxes, both spatially and temporally. However, the spatial variation in the N2O fluxes within the transect could not be explained by differences in any of the measured variables. Sometimes, mainly when no major peaks occurred, N2O fluxes were significantly correlated with CO2 release. It is concluded that distance to stems cannot be used to improve the design of sampling schemes or for extrapolating flux levels to larger scales.
Ämnesord
- NATURVETENSKAP -- Biologi -- Annan biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Other Biological Topics (hsv//eng)
Nyckelord
- Denitrification
- nitrogen transformation
- nitrous oxide emission
- root dynamics
- spatial variation
- spruce (Picea abies)
- NATURAL SCIENCES
- NATURVETENSKAP
- Denitrification
- nitrogen transformation
- nitrous oxide emission
- root dynamics
- spatial variation
- spruce (Picea abies)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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