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Branching, biomass distribution, and light capture efficiency in a pioneer tree, Rhus trichocarpa, in a secondary forest

Osada, N

Botany, 2005-12, Vol.83 (12), p.1590-1598 [Revista revisada por pares]

Ottawa: Canadian Science Publishing NRC Research Press

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Título:
Branching, biomass distribution, and light capture efficiency in a pioneer tree, Rhus trichocarpa, in a secondary forest
Autor: Osada, N
Materias: allometry ; allométrie ; Anacardiaceae ; architecture du houppier ; Biomass energy ; Botany ; branching ; Changes ; crown architecture ; dry matter partitioning ; début de ramification ; Efficiency ; forest succession ; forest trees ; Forests ; hauteur des arbres ; height ; index de surface foliaire ; individual leaf area ; leaf area ; leaf area index ; light ; light interception ; onset of branching ; Photosynthesis ; pioneer species ; plant architecture ; Plant growth ; radiation use efficiency ; Rhus ; Rhus trichocarpa ; Sample size ; secondary forests ; surface foliaire individuelle ; tree crown ; tree height ; Trees
Es parte de: Botany, 2005-12, Vol.83 (12), p.1590-1598
Notas: http://dx.doi.org/10.1139/b05-133
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Descripción: Crown architecture and biomass distribution patterns were investigated in relation to branching and tree size in a pioneer species, Rhus trichocarpa Miq. (Anacardiaceae), in a Japanese secondary forest. Crown architecture changed with tree size and with branching. Crown depth and area were greater in taller trees. In addition, branched trees had crowns of greater depth, and crown area increased more rapidly with increasing height in branched trees as compared with unbranched trees. In contrast, biomass distribution to nonphotosynthetic and photosynthetic organs changed only with tree size and was similar in unbranched and branched trees of similar size. Light capture efficiency was related to neither height nor branching status for trees with heights of 1-2.5 m. Coexistence of unbranched and branched trees at the height around the onset of branching is possible because these trees realize similar biomass distribution patterns and light capture efficiencies. Individual leaf area and leaf area index increased with tree size in unbranched trees but decreased with tree size in branched trees. These results suggest that several leaf clusters of limited size are sparsely arranged in a large three-dimensional space in tall trees.
Editor: Ottawa: Canadian Science Publishing NRC Research Press
Idioma: Inglés

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Branching, biomass distribution, and light capture efficiency in a pioneer tree, Rhus trichocarpa, in a secondary forest

Osada, N

Ottawa: Canadian Science Publishing NRC Research Press

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