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Titolo:
GROWTH OF YOUNG BEECHES (FAGUS-SYLVATICA L) IN AN EVEN-AGED, 18-YEAR OLD NATURAL BEECH REGENERATION
Autore:
THIEBAUT B; COMPS B; RUCART M; SOROSTE S; OKWO CN;
Indirizzi:
UNIV MONTPELLIER 2,INST BOT,163 AUGUSTE BROUSSONNET F-34000 MONTPELLIER FRANCE CTR LOUIS EMBERGER,CNRS F-34033 MONTPELLIER FRANCE UNIV BORDEAUX 1,DEPT BIOL VEGETAUX LIGNEUX F-33405 TALENCE FRANCE
Titolo Testata:
Annales des Sciences Forestieres
fascicolo: 2, volume: 49, anno: 1992,
pagine: 111 - 131
SICI:
0003-4312(1992)49:2<111:GOYB(L>2.0.ZU;2-7
Fonte:
ISI
Lingua:
FRE
Soggetto:
STAND STRUCTURE; ARCHITECTURE; TREES;
Keywords:
NATURAL SEEDLING; FAGUS-SYLVATICA; STRATIFICATION; GROWTH;
Tipo documento:
Article
Natura:
Periodico
Citazioni:
52
Recensione:
Indirizzi per estratti:
Citazione:
B. Thiebaut et al., "GROWTH OF YOUNG BEECHES (FAGUS-SYLVATICA L) IN AN EVEN-AGED, 18-YEAR OLD NATURAL BEECH REGENERATION", Annales des Sciences Forestieres, 49(2), 1992, pp. 111-131

Abstract

In an even-aged 18-year old natural beech regeneration, the growth ofyoung plants has been analysed using only the main stem under 3 daylight intensities: full-light, half-light, and shade. The structure shows 3, 2 and 1 layers respectively under these light conditions (table I). The variations in total height and root collar diameter had 2 components in full-light and in half-light only, ie among- and within-layers (figs 1, 2 and 3). In full-light, the height variations were responsible for the differences among the layers and those of root collar diameter for the differences within the layers, fig 1. In half-light the variations in height and root collar diameter were simultaneously responsible for the differences among and within the layers (fig 2). The structure appeared early with a single or several layer(s) (fig 8). Theannual and multiannual growth exhibited 3 periods: establishment, differentiation, and regression or stabilisation, (figs 5, 6, 8 and 9). In full-light where differentiation is best between the layers, stratification had an influence on the vigour of the seedlings and to some degree on their shape, but not in half-light (fig 10). The layers may beconsidered as reflecting social status in full-light where the heightis regulated by stratification. The classification of seedlings according to their total height over the 18-year period will be analysed ina subsequent paper.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 12:01:45