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Acta Botanica Brasilica

Print version ISSN 0102-3306

Abstract

PIMENTA, José Antonio et al. Litter production and nutrient cycling in a reforested area and a seasonal semideciduous forest in southern Brazil. Acta Bot. Bras. [online]. 2011, vol.25, n.1, pp.53-57. ISSN 0102-3306.  https://doi.org/10.1590/S0102-33062011000100008.

The aim of this study was to evaluate litter production, N, P, K, Ca and Mg content, nutrient transfer, and litter decomposition rate of a seasonal semideciduous forest and an adjacent reforested area. The study was carried out in Godoy Forest State Park (GFST), Paraná state, Brazil. Estimated annual litter production was 8,212 kg.ha-1.year-1 in the forest and 5,341 kg.ha-1.year-1 in the reforested area. The forest presented higher deposition in post-drought months (September and October). In both areas nutrient concentration (g.kg-1) followed the same order in forest - Ca(31.85) > N(19.94) > K(7.14) > Mg(2.28) > P(0.217), and reforested area - Ca(23.02) > N(19.62) > K(7.67) > Mg(1.74) > P(0.302). Nutrient transfer varied more during the year and the decomposition rate was lower in the reforested area.

Keywords : forest fragment; litter deposition; litter decomposition; nutrient transfer.

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