CuellarAllaireLangeEtAl2017

Référence

Cuellar, M.A., Allaire, S.E., Lange, S.F., Bradley, R.L., Parsons, W.F.J., Rivest, D., Cogliastro, A. (2017) Greenhouse gas dynamics in a tree-based intercropping system compared with an organic conventional system. Canadian Journal of Soil Science, 97(3):382-393. (Scopus )

Résumé

Tree-based intercropping (TBI) system has been suggested as an alternative to conventional mono-cropping (CM) for decreasing overall greenhouse gas (GHG) emissions. However, little is known about the advantages of TBI compared with organic CM system with low fertilizer inputs. This project compared CO2 and N2 O dynamics in replicated TBI and CM in Saint-Paulin (QC, Canada), established about 12 yr prior to this study under organic production, with horse manure and pruning residues as soil amendments. An experimental field, using a complete randomized block design, was instrumented in both systems. A five-point sampling transect was established between tree rows in each of the six plots. Surface CO2 and N2 O fluxes, CO2 and N2 O soil concentrations, and other physicochemical properties were analyzed at 0.125 and 0.25 m depths over two growing seasons. CO2 and N2 O concentrations in TBI soil were similar to or lower than in CM soil. Lower CO2 and N2 O emissions suggest that TBI would decrease overall GHG mitigation, even when compared with organic production with low fertilizer inputs, in addition to its potential for carbon sequestration in wood and other advantages that are not discussed in this study. © 2017, Agricultural Institute of Canada. All rights reserved.

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@ARTICLE { CuellarAllaireLangeEtAl2017,
    AUTHOR = { Cuellar, M.A. and Allaire, S.E. and Lange, S.F. and Bradley, R.L. and Parsons, W.F.J. and Rivest, D. and Cogliastro, A. },
    TITLE = { Greenhouse gas dynamics in a tree-based intercropping system compared with an organic conventional system },
    JOURNAL = { Canadian Journal of Soil Science },
    YEAR = { 2017 },
    VOLUME = { 97 },
    NUMBER = { 3 },
    PAGES = { 382-393 },
    NOTE = { cited By 1 },
    ABSTRACT = { Tree-based intercropping (TBI) system has been suggested as an alternative to conventional mono-cropping (CM) for decreasing overall greenhouse gas (GHG) emissions. However, little is known about the advantages of TBI compared with organic CM system with low fertilizer inputs. This project compared CO2 and N2 O dynamics in replicated TBI and CM in Saint-Paulin (QC, Canada), established about 12 yr prior to this study under organic production, with horse manure and pruning residues as soil amendments. An experimental field, using a complete randomized block design, was instrumented in both systems. A five-point sampling transect was established between tree rows in each of the six plots. Surface CO2 and N2 O fluxes, CO2 and N2 O soil concentrations, and other physicochemical properties were analyzed at 0.125 and 0.25 m depths over two growing seasons. CO2 and N2 O concentrations in TBI soil were similar to or lower than in CM soil. Lower CO2 and N2 O emissions suggest that TBI would decrease overall GHG mitigation, even when compared with organic production with low fertilizer inputs, in addition to its potential for carbon sequestration in wood and other advantages that are not discussed in this study. © 2017, Agricultural Institute of Canada. All rights reserved. },
    AFFILIATION = { Département des sols, Université Laval, 2480 rue Hochelaga, Québec, QC, Canada; Université de Sherbrooke, 2500 boulevard de l'Université, Sherbrooke, QC, Canada; Université du Québec en Outaouais, 283 boulevard Alexandre-Taché, Gatineau, QC, Canada; Jardin botanique de Montréal, 4101 Sherbrooke East, Montréal, QC, Canada },
    AUTHOR_KEYWORDS = { Agroforestry; Carbon dioxide; Emission fluxes; Nitrous oxide; Soil physics; Trees },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1139/cjss-2016-0081 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85028716042&doi=10.1139%2fcjss-2016-0081&partnerID=40&md5=2aa27ee1507b06d3fa5f6208bd7ec2d7 },
}

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