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Properties of boundary-line release criteria in North American tree species / Bryan A. Black in Annals of Forest Science, Vol 66 n° 2 (march 2009)  

Public [article]  inAnnals of Forest Science > Vol 66 n° 2 (march 2009) . - n° 205 Titre : Properties of boundary-line release criteria in North American tree species Titre original : Propriétés des critères des lignes limites de dégagement chez les arbres Nord Américains Type de document : Article/Communication Auteurs : Bryan A. Black, Auteur ; Marc D. Abrams, Auteur ; James S. Rentch, Auteur ; Peter J. Gould, Auteur Année de publication : 2009 Article en page(s) : n° 205 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] Amérique du nord [Termes IGN] Bootstrap (statistique) [Termes IGN] dégagement de semis [Termes IGN] dendrologie [Termes IGN] perturbation écologique [Vedettes matières IGN] Ecologie forestière Résumé : (auteur) Boundary line release criteria are increasingly applied to evaluate forest disturbance histories from tree-ring data. However, a number of important properties central to the technique have not been evaluated, including: (i) the ability of boundary line release criteria to standardize releases across various sites, species, and tree life stages (ii) the minimum sample sizes necessary for developing boundary lines, and (iii) the degree to which the criteria can resolve the degree of crown exposure following a disturbance event. In an analysis of eleven North American tree species, boundary line release criteria do not fully compensate for declines in release response a tree experiences with increasing age and size, with the exception Tsuga canadensis. A bootstrapping analysis indicates that approximately 50 000 ring width measurements are necessary to develop boundary line release criteria for a given species. In a Quercus prinus stand, boundary line release criteria better predict the degree of crown exposure following a disturbance than an earlier running mean technique. Despite certain limitations, boundary line release criteria have the potential to standardize release calculation across most life stages of a tree, and possibly among sites and species. Numéro de notice : A2009-716 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1051/forest/2008087 Date de publication en ligne : 28/02/2009 En ligne : https://www.afs-journal.org/articles/forest/abs/2009/02/f08160/f08160.html Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=71945 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
IFN-001-P000317	PER	Revue	Nogent-sur-Vernisson	Salle périodiques	Exclu du prêt