Abstract

VIERA, Márcio  and  SCHUMACHER, Mauro Valdir. Monthly variation of litter deposition in Pinus taeda L. stand in native grass area in Cambará do Sul-RS. Rev. Árvore [online]. 2010, vol.34, n.3, pp. 487-494. ISSN 0100-6762.  http://dx.doi.org/10.1590/S0100-67622010000300012.

This study had as its objective to evaluate the litter deposition in Pinus taeda L. planted in native grass areas, during three years (5º to 7º year after forest planting), in Cambará do Sul, RS. Four plots with 18 m x 50 m were randomly allocated and 20 litter collectors with 1 m² were distributed in the plots (5 in each one). The litter was collected monthly between April /2004 and march/2007. After each collection, the litter was dried in an oven to determine the dried weight. The average annual litter deposition was 2,545.1 kg ha^-1, with the following seasonal order: autumn > summer > winter > spring. The relative humidity was the only meteorological variable with significant correlation (r=0.365; p<0.05).

Keywords : Litter; Pinus; Native grass.