Metodologias para quantificação do fator de empilhamento em vegetação de caatinga/cerrado

Abstract

Alternative methodologies were used to characterize the solid volume of wood piles as well as to describe the conversion factor from solid to stacked wood (Fe) for a transitional caatinga/cerrado vegetation. The study was carried out in an experimental area of Fazenda Aracajú, Cristino Castro, Piauí. The data were collected in 11 stacks of wood arranged on the edges of an area with 30 by 90 meters. The Fe was calculated by the reasoning of Stacked Volume by Solid Volume. To test the reduction of the sample, 7 treatments: T1: face A and B of the wood pile and one diameter (horizontal); T2: face A and B and one diameter (vertical); T3: face A and cross-diameters; T4: face B and cross diameters; T5: face A and one diameter; T6: face B and one diameter. The analyzes were done in a spreadsheet using the paired t-test (95% probability of success) was adopted to compare the treatments. The mean solid volume was 1.57 m3 and the mean stacked volume was 4.03 mst. The Fe from solid to stacked wood was 2.55. Treatment T6 obtained good results, demonstrating the possibility of reducing sampling by measuring only one face and one diameter.