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An analysis of sucker regeneration of trembling aspen

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Abstract:

Aspen (Populus tremuloides Michx.) is a clonal tree species that commonly regenerates via root suckering after disturbance. This paper reviews the literature and identifies critical gaps in our understanding of the dynamics of aspen root suckering. The role of plant growth regulators (e.g., hormones, carbohydrates), environmental conditions (e.g., soil moisture, temperature, nutrient availability), overstory disturbance (e.g., harvesting, wildfire), ground disturbance (e.g., soil compaction, wounding or severing of roots), vegetation competition, predisturbance stand condition, and clonal (genetic) differences are discussed as they relate to sucker initiation, sucker growth, and (or) patterns of site establishment. The paper presents a series of conceptual figures summarizing our knowledge of the factors controlling suckering dynamics and identifies areas of future research.

Le peuplier faux-tremble (Populus tremuloides Michx.) est une espèce clonale qui se régénère généralement par drageonnement racinaire après une perturbation. Cet article passe en revue la littérature et identifie les points critiques qui font défaut dans notre compréhension de la dynamique du drageonnement racinaire chez le peuplier faux-tremble. Le rôle des régulateurs de croissance (p. ex. hormones, hydrates de carbone), les conditions environnementales (p. ex. humidité du sol, température, disponibilité des nutriments), la perturbation du couvert (p. ex. récolte, feux de forêt), la perturbation du sol (p. ex. compaction du sol, bris ou dommages aux racines), la végétation compétitrice, les caractéristiques du peuplement antérieurement à une perturbation et les variations clonales (génétiques) sont abordés en lien avec l'initiation et la croissance des drageons et les patrons d'établissement sur un site. L'article contient une série de schémas conceptuels qui résument nos connaissances à propos des facteurs qui contrôlent la dynamique du drageonnement et identifient les préoccupations futures de recherche.[Traduit par la Rédaction]

Document Type: Research Article

Publication date: 2003-07-01

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  • Published since 1971, this monthly journal features articles, reviews, notes and commentaries on all aspects of forest science, including biometrics and mensuration, conservation, disturbance, ecology, economics, entomology, fire, genetics, management, operations, pathology, physiology, policy, remote sensing, social science, soil, silviculture, wildlife and wood science, contributed by internationally respected scientists. It also publishes special issues dedicated to a topic of current interest.
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