LarocquePareBoutinEtAl2014

Référence

Larocque, G.R., Pare, D., Boutin, R., Sarr, L., Lacerte, V., Ansseau, C. (2014) Comparing carbon pools and tree growth in balsam fir (Abies balsamea) and black spruce (Picea mariana) forest ecosystems located along a climatic gradient. Ecoscience, 21(3-4):265-277. (Scopus )

Résumé

Carbon (C) content in several forest ecosystem pools, including trees, understory species, downed logs, litter, soil organic and mineral layers, and fine roots, and tree growth were compared in balsam fir (Abies balsamea) and black spruce (Picea mariana) ecosystems located along a climatic gradient in eastern Canada spanning regions that differed by 4 °C in mean annual temperature. A total of 19 experimental sites were established, 12 in balsam fir ecosystems and 7 in black spruce ecosystems. Diameter at breast height (dbh), height growth rate, and C contents in trees, understory species, downed logs, litter, and soil organic and mineral layers did not differ significantly between northern and southern experimental sites (P < 0.05). The only C pool that differed significantly among the regions was fine roots. Tree ring data collected on trees greater than 5 cm in dbh at all the sites were related to monthly climatic data between April and October, the active physiological season at the latitudes of the study. The relationships derived indicated that the differential effects of significant climatic variables along the climatic gradient were more important for black spruce than balsam fir. These results suggest that the changes in climatic conditions in the next 100 y may have a relatively small effect on the productivity and C allocation of both forest types when located within a range of climatic conditions similar to those of this study.

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@ARTICLE { LarocquePareBoutinEtAl2014,
    AUTHOR = { Larocque, G.R. and Pare, D. and Boutin, R. and Sarr, L. and Lacerte, V. and Ansseau, C. },
    TITLE = { Comparing carbon pools and tree growth in balsam fir (Abies balsamea) and black spruce (Picea mariana) forest ecosystems located along a climatic gradient },
    JOURNAL = { Ecoscience },
    YEAR = { 2014 },
    VOLUME = { 21 },
    NUMBER = { 3-4 },
    PAGES = { 265-277 },
    NOTE = { cited By 1 },
    ABSTRACT = { Carbon (C) content in several forest ecosystem pools, including trees, understory species, downed logs, litter, soil organic and mineral layers, and fine roots, and tree growth were compared in balsam fir (Abies balsamea) and black spruce (Picea mariana) ecosystems located along a climatic gradient in eastern Canada spanning regions that differed by 4 °C in mean annual temperature. A total of 19 experimental sites were established, 12 in balsam fir ecosystems and 7 in black spruce ecosystems. Diameter at breast height (dbh), height growth rate, and C contents in trees, understory species, downed logs, litter, and soil organic and mineral layers did not differ significantly between northern and southern experimental sites (P < 0.05). The only C pool that differed significantly among the regions was fine roots. Tree ring data collected on trees greater than 5 cm in dbh at all the sites were related to monthly climatic data between April and October, the active physiological season at the latitudes of the study. The relationships derived indicated that the differential effects of significant climatic variables along the climatic gradient were more important for black spruce than balsam fir. These results suggest that the changes in climatic conditions in the next 100 y may have a relatively small effect on the productivity and C allocation of both forest types when located within a range of climatic conditions similar to those of this study. },
    AFFILIATION = { Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, 1055 du PEPS, Québec, QC G1V 4C7, Canada; 3720 rue Gabrielle Vallée, Québec, QC G1W 2Z7, Canada; Agence de Développement Local (ADL), VDN Liberté VI Lot No 23, Dakar Yoff, Ninea, 4406311 2G3, Senegal; 13 des Jacinthes, St-Lambert de Lauzon, QC G0S 2W0, Canada; Département de Biologie, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada },
    AUTHOR_KEYWORDS = { carbon pools; climatic gradient; fine roots; tree growth },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.2980/21-(3-4)-3701 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-84945944612&doi=10.2980%2f21-%283-4%29-3701&partnerID=40&md5=a4391de1f1bf5faf16c74e49890a0182 },
}

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