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Genetic effects of forest management practices: Global synthesis and perspectives

Ratnam W., Rajora O.P., Finkeldey R., Aravanopoulos F., Bouvet J.M., Vaillancourt R.E., Kanashiro M., Fady B., Tomita M., Vinson C.. 2014. Forest Ecology and Management, 333 : p. 52-65.

Understanding the genetic impacts of forest management practices is crucial for conservation and management of forest genetic resources. Forest management practices based on selective and clear cut systems followed by natural or artificial regeneration can impact population structure and mating patterns, thus gene flow and genetic diversity. Survival and productivity of both tree and non-tree species can be compromised or, possibly, enhanced. The extent of genetic impacts depend on the management system applied, stand structure as well as species' distribution, demography, biological attributes and ecology. The impact of management practices is reviewed and synthesized for temperate, boreal and tropical forests based on experimental and simulation studies. In addition, the effects of genetically improved planting materials and establishment of large scale plantations on natural forests are examined. Recommendations are made for genetically sustainable forest management practices. (Résumé d'auteur)

Mots-clés : régénération artificielle; régénération naturelle; opération forestière; conservation des ressources; ressource génétique végétale; caractéristique du peuplement; composition botanique; forêt primaire; plantations; impact sur l'environnement; génétique des populations; sylviculture; aménagement forestier; forêt boréale; forêt tropicale; forêt tempérée; forêt; région méditerranéenne; australie; asie du sud-est; amérique latine; amérique du nord; europe; monde; forêt naturelle

Thématique : Génétique et amélioration des plantes; Foresterie - Considérations générales; Conservation de la nature et ressources foncières; Production forestière

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