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- Title
Nutrientes na biomassa aérea e na serapilheira em áreas de caatinga em Floresta, PE.
- Authors
Rocha Alves, Allyson; Caraciolo Ferreira, Rinaldo Luiz; Aleixo da Silva, José Antônio; Batista Dubeux Júnior, José Carlos; Salami, Gabriela
- Abstract
This study aimed to quantify nutrient content in shoot biomass components and litter in two areas of savanna vegetation with different ecological characteristics, one in regeneration and the other as a preserved area, in Floresta, Pernambuco State, Brazil. It was carried out an initial inventory launching 40 plots of 400 m² in each area, with inclusion level of circumference at 1.3 m above ground level = 6.0 cm. The five species with highest importance value were used for biomass analysis. Chemical analysis were carried out in samples of 100 g taken from the different component of each of those species. To estimate the stock of litter assortments were made in dry and rainy seasons, using a hollow square mold with 0.5 m randomly released in plots. It was observed that the nutrient content found in total biomass in both areas followed the same sequence: N > Ca > K > Mg > P > S. Litter stock from the preserved area were higher in all fractions, however differences were observed between seasons. In the dry season the sequence was: N > Ca > S > K > Mg > P, and in the rainy season N > Ca > K > S > P > Mg in both areas. When the nutrient content was available, the litter presented the highest nutrient contents compared to those present in the biomass above the soil.
- Publication
Brazilian Journal of Forest Research / Pesquisa Florestal Brasileira, 2017, Vol 37, Issue 92, p413
- ISSN
1809-3647
- Publication type
Article
- DOI
10.4336/2017.pfb.37.92.1060