Quantifying the effect of nitrogen-induced physiological and structural changes on poplar growth using a carbon-balance model

dc.contributor.authorColl Mir, Lluís
dc.contributor.authorSchneider, Robert
dc.contributor.authorBerninger, Frank
dc.contributor.authorDomenicano, Susy
dc.contributor.authorMessier, Christian
dc.date.accessioned2020-03-26T11:31:40Z
dc.date.available2020-03-26T11:31:40Z
dc.date.issued2011-04-14
dc.description.abstractWe evaluate the importance of changes in photosynthetic capacity, respiration rates, root shoot ratio, pipe model parameters and specific leaf area in the early-growth response of hybrid poplar to nitrogen availability. Juvenile growth simulations for trees with three different levels of leaf nitrogen concentration (Nleaf) (low (1.2%), medium (2.4%) and high (3.6%)) were conducted with the carbon-balance model CROBAS. Five-year growth simulations showed the diameter and height of poplar trees to be, respectively, four and three times larger in plants with 2.4% Nleaf compared with those with 1.2% Nleaf. Increasing Nleaf from 2.4 to 3.6% resulted in 34 and 16% higher diameter and height growth of trees. According to the model, changes in the photosynthetic capacity accounted for most of the differences in growth between trees with different levels of Nleaf; the other parameters were much less influential. This suggests that in fast-growing early-successional broadleaved species such as poplars, physiological rather than allocational and morphological traits predominate in determining growth, at least under non-limiting light conditions.ca_ES
dc.description.sponsorshipThis research was supported primarily by NSERC and Domtar, Inc., with additional input from the Ligniculture Quebec Network (Réseau Ligniculture Québec) and the Quebec Ministry of Natural Resources. L.C. was supported during 2009 and 2010 by a Ramon y Cajal contract (RYC-2009-04985) from the Ministerio de Ciencia e Innovación of Spain.ca_ES
dc.identifier.doihttps://doi.org/10.1093/treephys/tpr013
dc.identifier.idgrec028867
dc.identifier.issn0829-318X
dc.identifier.urihttp://hdl.handle.net/10459.1/68348
dc.language.isoengca_ES
dc.publisherOxford University Pressca_ES
dc.relation.isformatofVersió postprint del document publicat a: https://doi.org/10.1093/treephys/tpr013ca_ES
dc.relation.ispartofTree Physiology, 2011, vol. 31, núm. 4, p. 381-390ca_ES
dc.rights(c) Coll Mir, Lluís et al., 2011ca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_ES
dc.subjectCarbon-balance modelca_ES
dc.subjectFunctional-balance hypothesisca_ES
dc.subjectGrowthca_ES
dc.subjectHybrid poplarca_ES
dc.subjectPhotosynthesisca_ES
dc.subjectPipe model ratiosca_ES
dc.titleQuantifying the effect of nitrogen-induced physiological and structural changes on poplar growth using a carbon-balance modelca_ES
dc.typeinfo:eu-repo/semantics/articleca_ES
dc.type.versioninfo:eu-repo/semantics/acceptedVersionca_ES
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