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Estudos silviculturais de uma populacao natural de Copaifera multijuga Hayne - leguminosae, na amazonia central, 3: Distribuicao espacial da regeneracao natural pre-existente

by Alencar, J. da C.
Publisher: 1984Subject(s): COPAIFERA MULTIJUGA | REGENERACION NATURAL | DINAMICA DE LA POBLACION | DISTRIBUCION DE LA POBLACION | FENOLOGIA | CRECIMIENTO | AMAZONIA | BRASIL | NATURAL REGENERATION | POPULATION DISTRIBUTION | PHENOLOGY | GROWTH | AMAZONIA | BRAZIL | REGENERATION NATURELLE | DISTRIBUTION DES POPULATIONS | PHENOLOGIE | CROISSANCE | AMAZONIE | BRESIL In: Acta Amazonica (Brasil) v. 14(1-2) p. 255-279Summary: The author presents results concerning the spacial distribution of the natural regeneration of Copaifera multijuga Hayne in Ducke Forest Reserve. All the statistical parameters were calculated and the expected relative frequencies according to the Poisson equation shows that the distribution pattern of the regeneration for all the 12 mother trees studied is "in group". The natural regeneration in a not disturbed area is variable according to the greater or minor seed production, the competition among plantules of this species and the competition between the plantules of C. multijuga with others species, besides the probable predation by animals and the struggle to survive at low levels of radiation. The plantules frequency distribution sugests the shape of a J inverted. The difference in the variance of the plantules height is significant at 5 per cent. The plantules height varied from 10 cm until 50 cm, being height mean for the 12 mother trees of 20,66 cm and 15,54 cm at the first and second inventory, respectively. The number of the natural regeneration is high after a good seed production, and seems to be silviculturely interesting their utilization for planting purposes, since the adaptability of the plantules to the nursery conditions be studied.
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The author presents results concerning the spacial distribution of the natural regeneration of Copaifera multijuga Hayne in Ducke Forest Reserve. All the statistical parameters were calculated and the expected relative frequencies according to the Poisson equation shows that the distribution pattern of the regeneration for all the 12 mother trees studied is "in group". The natural regeneration in a not disturbed area is variable according to the greater or minor seed production, the competition among plantules of this species and the competition between the plantules of C. multijuga with others species, besides the probable predation by animals and the struggle to survive at low levels of radiation. The plantules frequency distribution sugests the shape of a J inverted. The difference in the variance of the plantules height is significant at 5 per cent. The plantules height varied from 10 cm until 50 cm, being height mean for the 12 mother trees of 20,66 cm and 15,54 cm at the first and second inventory, respectively. The number of the natural regeneration is high after a good seed production, and seems to be silviculturely interesting their utilization for planting purposes, since the adaptability of the plantules to the nursery conditions be studied.

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