Caracterização da relação hipsométrica em um fragmento de cerrado sensu stricto, sul do Tocantins

Abstract

This study aimed to avaliate the hypsometric equations utilization in cerrado sensu stricto, focusing on the sampling method of hypsometric relationship data. To this end, five samples of 1000m² (20x50m) were used, in a cerrado sensu stricto area situated in south Tocantins. Forty hypsometric models and five sampling methods were used with relative area to total area. In this avaliation, besides the waste distribution analysis, standart error of waste and coefficient of determination, this statistc criteria were also adopted: completely randomized design in a split plot scheme, Dunett test, absolute mean deviation, standart deviation of differences, squares sum of relative residues, percentage residue, medium error square root, standart deviation of absolutes differences and multiple linear correlation. It was concluded that the funcional relation Ln (h)=f[Ln(N/d);Ln(dq/d);1/d; Ln(G)] was the best option to characterize the hyposometric relationship in forest inventory of cerrado sensu stricto and it must be ajusted with the obtained data in a 40% area of the plot total area.