Regeneração natural e enriquecimento de sub-bosque de Mimosa caesalpiniifolia Benth (sabiá), em reflorestamentos do Rio de Janeiro. / Regeneração natural e enriquecimento de sub-bosque de Mimosa caesalpiniifolia Benth (sabiá), em reflorestamentos do Rio de Janeiro.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2003

RESUMO

This study was carried out in two comunitys of Rio de Janeiro, Morro do Salgueiro and Urubu. Plants of the family Leguminosa are able to associate to bacterium(rizóbio) and funges micorrízicos, became resistant to ambiental stress. Since they are resistant species, made pure plantations during the years as follows: leucena (Leucaena spp.) and sabiá (Mimosa caesalpiniifolia). With the purpose to improve this pure plantation, were made 2 experiment on Sabia species with diferent tecniches of replantation on the comunitys in study. This experiment were made in casual blocks: Opening dosall, Not opening dossal with a subtreatments, Litter of forest, Litter of forest with seeds, Plantation of seedling, and Mixture Litter Analised Parameters Couting of natural regeneration in parcel, Height of planted seedling The soil fauna worked like a bioindicator of suistenable florest planted when compared to Original Florest. A part of Litter of Original Florest added under plantation of sabiá, was taken to green house analising the potencial propagulum of this material. Also was collected the litter of sabia under forest to study the potencial propagulum of this material and obtain the dry matter by area. The results show the eficience of the treatment (b) mixture of litter with opening dossal, in that case most of capim colonião (Panicum maximum) e leucena. Another treatment that show a good result is due to low operacional cost was the (a) Natural litter without opening dossal 10 propagulum/m2. Among the planted species the most height reach was Chorisia speciosa (Paineira).The potencial litter of original florests can be explore for richness of replantation, and easist acquisition, thefeore, must be implemented in the best aplication way.

ASSUNTO(S)

enriquecimento mimosa caesalpiniifolia serrapilheira litter técnicas de revegetação tecniques of revegetation agronomia fauna of soil. fauna do solo. enrichment

ACESSO AO ARTIGO

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