Influência da distância na exatidão da cubagem não destrutiva de Qualea sp. no bioma Amazônia.

De Angeli CURTO, Rafaella; Teodoro dos ANJOS, Arthur Faganello; Gomes de ARAÚJO, Emanuel José; WINK, Charlote; KOHLER, Sintia Valerio

The objective was to evaluate the effect of distance on the accuracy of the digital dendrometer Criterion RD 1000®, on the estimate of the diameter and volume of Qualea sp. in the Amazon biome. Thirty trees were selected and scaled by the Smalian method to commercial height with climbing and with a Criterion RD 1000®, in the distances between the observer and the 11 m, 13 m, 15 m and the longest distance that the observer managed to install the equipment in relation to the tree. To analyze diameter along the stem, commercial volume and volume per segment, the t test for dependent samples was performed, with a 95% probability, as well as residual analysis and complementary statistics. There was no significant difference between the mean values of the variables analyzed, obtained with the climb and estimated with a Criterion. There was a smaller amplitude of residues in the lower sections of the stem with tendency to underestimate smaller diameters. The complementary statistics showed greater errors with the equipment closest to the tree and smaller when it was 15 m away, corresponding to a distance greater than the average commercial height of the trees. The equipment made it possible to accurately estimate the diameters and volumes of standing trees, enabling the non-destructive scaling of Qualea sp. in the Amazon biome forest.

Nativa, 2020, Vol 8, Issue 5, p663

2318-7670

Academic Journal

10.31413/nativa.v8i5.10843