Plantios florestais na Amazônia Central: biometria, ciclagem bioquímica e alterações edáficas
The timber harvest is one the economic pillars of the north region of Brazil, however this harvest has been practiced in a inadequate way, predatory, at the most time disrespecting technical criteria, abdicating the timber industry supply at a long time. There are the forest planting, that beyond a...
| Autor principal: | Machado, Murilo Rezende |
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| Grau: | Dissertação |
| Idioma: | por |
| Publicado em: |
Instituto Nacional de Pesquisas da Amazônia - INPA
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/5060 http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4734348U1 |
| Resumo: |
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The timber harvest is one the economic pillars of the north region of Brazil, however this harvest has been practiced in a inadequate way, predatory, at the most time disrespecting technical criteria, abdicating the timber industry supply at a long time. There are the forest planting, that beyond a more simple planning adequate itself in the propose of de rational use of the region, based on the native forest sustainability and
protection criteria. So, this study have objectify to evaluate the growing averages, the internal use of nutrient and the physical and chemical proprieties of five forest species
(Acacia mangium, Swietenia macrophylla, Parkia decussata Dipteryx odorata, Jacaranda copaia) soil planted uniformly in bright daylight in changed areas by the Grazing in the Central Amazon at four years old. It was determinated too, the form
factor for each specie beyond the scaling of three standing individuals per parcel, using the Smalian method, and estimating the volume for hectare. In the Parcels, was collected too mature leafs of three individuals per parcel and per specie and was even collected too, just felled leafs to estimate the percentage of nutrients redistribuition. In the soil study was collected a sample composed by parcels in three depths for all the species and also in native forest and pasture area. The native species, in exception of Jacaranda copaia obtained high surviving taxes. All the native species presented a good
volumetric production com appropriate characteristics to the production of timber to sawmill, except the Swietenia macrophylla that suffered plague attach. The Acacia
mangium had a volumetric production above the region standard, being indicated to the firewood production. The most redistributed elements was P, N, K and the forest species, mainly the natives achieved to improve the soil chemistry proprieties. |