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dc.contributor.author
Berhongaray, Gonzalo
dc.contributor.author
Verlinden, Melanie S.
dc.contributor.author
Broeckx, Laura S.
dc.contributor.author
Janssens, Ivan A.
dc.contributor.author
Ceulemans, Reinhart
dc.date.available
2018-12-07T20:26:35Z
dc.date.issued
2017-02
dc.identifier.citation
Berhongaray, Gonzalo; Verlinden, Melanie S.; Broeckx, Laura S.; Janssens, Ivan A.; Ceulemans, Reinhart; Soil carbon and belowground carbon balance of a short-rotation coppice: assessments from three different approaches; Blackwell Publishing Ltd; GCB Bioenergy; 9; 2; 2-2017; 299-313
dc.identifier.issn
1757-1707
dc.identifier.uri
http://hdl.handle.net/11336/66104
dc.description.abstract
Uncertainty in soil carbon (C) fluxes across different land-use transitions is an issue that needs to be addressed for the further deployment of perennial bioenergy crops. A large-scale short-rotation coppice (SRC) site with poplar (Populus) and willow (Salix) was established to examine the land-use transitions of arable and pasture to bioenergy. Soil C pools, output fluxes of soil CO2, CH4, dissolved organic carbon (DOC) and volatile organic compounds, as well as input fluxes from litter fall and from roots, were measured over a 4-year period, along with environmental parameters. Three approaches were used to estimate changes in the soil C. The largest C pool in the soil was the soil organic carbon (SOC) pool and increased after four years of SRC from 10.9 to 13.9 kg C m−2. The belowground woody biomass (coarse roots) represented the second largest C pool, followed by the fine roots (Fr). The annual leaf fall represented the largest C input to the soil, followed by weeds and Fr. After the first harvest, we observed a very large C input into the soil from high Fr mortality. The weed inputs decreased as trees grew older and bigger. Soil respiration averaged 568.9 g C m−2 yr−1. Leaching of DOC increased over the three years from 7.9 to 14.5 g C m−2. The pool-based approach indicated an increase of 3360 g C m−2 in the SOC pool over the 4-year period, which was high when compared with the −27 g C m−2 estimated by the flux-based approach and the −956 g C m−2 of the combined eddy-covariance + biometric approach. High uncertainties were associated to the pool-based approach. Our results suggest using the C flux approach for the assessment of the short-/medium-term SOC balance at our site, while SOC pool changes can only be used for long-term C balance assessments.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Blackwell Publishing Ltd
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Bioenergy
dc.subject
Carbon Fluxes
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Carbon Pools
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Land-Use Change
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Poplar
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Populus Sp
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Second-Generation Biofuels
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Soil Organic Carbon
dc.subject.classification
Agricultura
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Agricultura, Silvicultura y Pesca
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CIENCIAS AGRÍCOLAS
dc.title
Soil carbon and belowground carbon balance of a short-rotation coppice: assessments from three different approaches
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-11-27T16:33:31Z
dc.journal.volume
9
dc.journal.number
2
dc.journal.pagination
299-313
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Berhongaray, Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universiteit Antwerp; Bélgica
dc.description.fil
Fil: Verlinden, Melanie S.. Universiteit Antwerp; Bélgica
dc.description.fil
Fil: Broeckx, Laura S.. Universiteit Antwerp; Bélgica
dc.description.fil
Fil: Janssens, Ivan A.. Universiteit Antwerp; Bélgica
dc.description.fil
Fil: Ceulemans, Reinhart. Universiteit Antwerp; Bélgica
dc.journal.title
GCB Bioenergy
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1111/gcbb.12369
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1111/gcbb.12369
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