Parent Sylvain, Simard Marie-Josée, Morin Hubert et Messier Christian. (2003). Establishment and dynamics of the balsam fir seedling bank in old forests of northeastern Quebec. Canadian Journal of Forest Research, 33, (4), p. 597-603.
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URL officielle: http://dx.doi.org/doi:10.1139/x02-194
Résumé
This study examines balsam fir (Abies balsamea (L.) Mill.) recruitment in old fir stands. Studying the regeneration of these stands is essential to understand the regeneration dynamic of the species in the absence of standdestroying disturbances. The objectives were (1) to obtain substrate-seedling associations for different age-classes and according to the presence or absence of adventitious roots; (2) to evaluate the contribution of the seed rain to seedling recruitment; (3) to re-examine age structures using the most appropriate method that minimizes estimation errors due to the presence of adventitious roots. A total of 90 quadrats (1 m2) were established along transects. In each quadrat, subtrates were characterized (type and topography) and their area was estimated. All balsam fir seedlings (<50 cm tall) present in the quadrats were located, harvested whole (root and shoot), and described (age, height, presence of adventitious roots, etc). Fir seedlings were strongly associated with woody mounds covered with thin mats of mixed mosses and Pleurozium shreberi (Bird.) Mitt. but negatively associated with flat topography particularly dominated by Hylocomium splendens (Hedw.) B.S.G. The presence of adventitious root is related to seedling age more than substrate type or topography. The age structure is in agreement with seed production and disturbance regime.
Type de document: | Article publié dans une revue avec comité d'évaluation |
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ISSN: | 0045-5067 |
Volume: | 33 |
Numéro: | 4 |
Pages: | p. 597-603 |
Version évaluée par les pairs: | Oui |
Date: | 2003 |
Identifiant unique: | 10.1139/x02-194 |
Sujets: | Sciences naturelles et génie > Sciences naturelles > Biologie et autres sciences connexes |
Département, module, service et unité de recherche: | Départements et modules > Département des sciences fondamentales Unités de recherche > Centre de recherche sur la Boréalie (CREB) |
Mots-clés: | adventitious root, old-growth forest, population dynamics, recruitment, regeneration, seed rain, seedling establishment, balsam fir (Abies balsamea), Canada |
Déposé le: | 04 juill. 2023 15:51 |
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Dernière modification: | 04 juill. 2023 15:51 |
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