Tephrosia candida D.C. e Mimosa velloziana Mart : biomassa, serapilheira e fertilidade do solo
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Data
2013-02-25
Autores
Sperandio, Huezer Viganô
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Universidade Federal do Espírito Santo
Resumo
Recovering an area is to make it productive again, either for conservation or production. It is necessary to generate knowledge about techniques to perform this procedure. Among them the revegetation site from species with potential insertion of organic matter and efficient nutrient cycling, becomes promising in the case of legumes. It is essential to the understanding of such desirable traits in species. Therefore, this study aimed to study nutrient cycling in two legume species (Tephrosia candidaandMimosa velloziana) and Tableland Atlantic Forest, and characterize soil fertility. The vegetation cover is established under Yellow Red Oxisol in Linhares, ES. The aboveground biomass of legumes was compartmentalized into: leaves, branches and dried branches for Mimosa, and leaves, and branches with a diameter greater and less than 2 cm, and dry branches, for Tefrosia, being quantified biomass and nutrients. It was also evaluated the litter accumulated in legumes and Tableland Atlantic Forest and its nutrients, in the rainy season and drought and soil fertility in the depths 0-5, 5-15 and 15 - 30 cm. It was found that the Tefrosia showed the highest production of biomass above ground, the leaves being compartmentalized the highest levels of nutrients. Litter biomass accumulated was not influenced by the dry and rainy seasons, being found more value in the area with Mimosa. Nitrogen is the nutrient with the highest content in the litter, followed by calcium> magnesium> potassium> phosphorus> manganese> boron> zinc > cuprum. The Tableland Atlantic Forest presented the soil with lower nutrient levels, with the highest levels found in the surface layer. The sites which are established legumes presented similarities regarding soil fertility. Not verified superiority of a legume species thus presenting in both species, potential for inclusion in restoration projects, according to their processes of nutrient cycling.
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Tableland atlantic forest , Forest sustainability , Restoration of degraded areas , Legumes , Floresta de Tabuleiros , Sustentabilidade Florestal , Recuperação de áreas degradadas
Citação
SPERANDIO, Huezer Viganô. Tephrosia candida D.C. e Mimosa velloziana Mart: Biomassa, Serapilheira e Fertilidade do Solo. 2013. Dissertação (Mestrado em Ciências Florestais) – Universidade Federal do Espírito Santo, Jerônimo Monteiro, 2013.