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Titolo:
Functional ecology of advance regeneration in relation to light in boreal forests
Autore:
Messier, C; Doucet, R; Ruel, JC; Claveau, Y; Kelly, C; Lechowicz, MJ;
Indirizzi:
Univ Quebec, Dept Sci Biol, Grp Rech Ecol Forestiere, GREFI,Ctr Ville Branch, Montreal, PQ H3C 3P8, Canada Univ Quebec Montreal PQ Canada H3C 3P8 anch, Montreal, PQ H3C 3P8, Canada Minist Ressources Nat, Direct Rech, St Foy, PQ G1P 3W8, Canada Minist Ressources Nat St Foy PQ Canada G1P 3W8 St Foy, PQ G1P 3W8, Canada Univ Laval, Fac Foresterie & Geomat, Dept Sci Bois & Foret, St Foy, PQ G1K7P4, Canada Univ Laval St Foy PQ Canada G1K 7P4 is & Foret, St Foy, PQ G1K7P4, Canada McGill Univ, Dept Biol, GREFI, Montreal, PQ H3A 1B1, Canada McGill Univ Montreal PQ Canada H3A 1B1 REFI, Montreal, PQ H3A 1B1, Canada
Titolo Testata:
CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE
fascicolo: 6, volume: 29, anno: 1999,
pagine: 812 - 823
SICI:
0045-5067(199906)29:6<812:FEOARI>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
NORTHWESTERN BRITISH-COLUMBIA; NEOTROPICAL RAIN-FOREST; SHADE-SHOOT STRUCTURE; CROWN ARCHITECTURE; ABIES-AMABILIS; SUCCESSIONAL STATUS; LEAF-AREA; BIOMASS ALLOCATION; CANOPY GAPS; TREE HEIGHT;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
149
Recensione:
Indirizzi per estratti:
Indirizzo: Messier, C Univ Quebec, Dept Sci Biol, Grp Rech Ecol Forestiere, GREFI,CtrVille Branch, POB 8888, Montreal, PQ H3C 3P8, Canada Univ Quebec POB 8888 Montreal PQ Canada H3C 3P8 H3C 3P8, Canada
Citazione:
C. Messier et al., "Functional ecology of advance regeneration in relation to light in boreal forests", CAN J FORES, 29(6), 1999, pp. 812-823

Abstract

This paper reviews aspects of the functional ecology of naturally established tree seedlings in the boreal forests of North America with an emphasis on the relationship between light availability and the growth and survival of shade tolerant conifers up to pole size. Shade tolerant conifer species such as firs and spruces tend to have a lower specific leaf mass, photosynthetic rate at saturation, live crown ratio, STAR (shoot silhouette area to total needle surface area ratio), and root to shoot ratio than the shade intolerant pines. The inability of intolerant species such as the pines and aspen to survive in shade appears to be mainly the result of characteristicsat the. shoot, crown, and whole-tree levels and not at the leaf level. Although firs and spruces frequently coexist in shaded understories, they do not have identical growth patterns and crown architectures. We propose a simple framework based on the maximum height that different tree species can sustain in shade, which may help managers determine the timing of partial orcomplete harvests. Consideration of these functional aspects of regeneration is important to the understanding of boreal forest dynamics and can be useful to forest managers seeking to develop or assess novel silvicultural systems.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/12/20 alle ore 16:08:44