Litter production and nutrient cycling in a reforested area and a seasonal semideciduous forest in southern Brazil

José Antonio Pimenta Leopoldo Bopp Rossi José Marcelo Domingues Torezan Alba Lúcia Cavalheiro Edmilson Bianchini About the authors

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.

forest fragment; litter deposition; litter decomposition; nutrient transfer


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