Nutrients in the aerial biomass and litter in Caatinga areas in floresta, Pernambuco State, Brazil

Authors

  • Allyson Rocha Alves Universidade Federal Rural do Semiárido
  • Rinaldo Luiz Caraciolo Ferreira Federal Rural University of Pernambuco image/svg+xml
  • José Antônio Aleixo da Silva Federal Rural University of Pernambuco image/svg+xml
  • José Carlos Batista Dubeux Júnior Federal Rural University of Pernambuco image/svg+xml
  • Gabriela Salami Universidade Federal Rural do Semiárido

DOI:

https://doi.org/10.4336/2017.pfb.37.92.1060

Keywords:

Biogeochemical cycle, Regeneration, Dry forest

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.

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Author Biographies

  • Allyson Rocha Alves, Universidade Federal Rural do Semiárido
    http://lattes.cnpq.br/6394888436141621
  • Rinaldo Luiz Caraciolo Ferreira, Federal Rural University of Pernambuco
    http://lattes.cnpq.br/8002371435811689

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Published

2017-12-29

Issue

Vol. 37 No. 92 (2017): out./dez.

Section

Articles

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How to Cite

ALVES, A. R. et al. Nutrients in the aerial biomass and litter in Caatinga areas in floresta, Pernambuco State, Brazil. Pesquisa Florestal Brasileira, v. 37, n. 92, p. 413–420, 29 Dec.2017.

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