EQUATION FOR VOLUME ?? í TREES OF A FOREST IN DENSE MUNICI ?? PIO Anapu, WEST OF THE STATE OF PARI ??, EASTERN AMAZON
Abstract
The present study tested eight regression models, five simple input and three dual input, to estimate the volume of standing trees, with the aim of selecting the best model for soil and climatic conditions of the western region of the state of Pará. Were felled 212 trees distributed among 34 species and covering a range of 25 cm to 130 cm DBH, which were determined in their respective DAP, actual length of the shaft and the actual volume obtained by the methodology Smalian. Among the models tested were pre-selected two models of simple
entry and two double entry. Based on statistical criteria, such as: higher values of Fe R2 and lower values of Sxy and CV%, the IF- Furnival index for comparisons with the DMP and logarithmic models% - Average Deviation Percent of waste. Based on these criteria, proposed by Brenac simple input model resulted in the volume equation logV -3.54174100488 + = 2.285072281554 1.290856892227 * + * logDAP 1 / DAP to be used in calculating the volume of standing trees the study area, by entering into the equation with the value of DAP expressed in centimeters. Since this is an equation of local volume, this has restricted its applicability to the area that presents the same floristic and environmental characteristics of the Anapu (PA), where the data were collected and established within the diametrical amplitude region.
Downloads
Authors retain copyright and grant the Journal the right to the first publication. Authors are encouraged to and may self-archive a created version of their article in their institutional repository, or as a book chapter, as long as acknowledgement is given to the original source of publication. As the Journal provides open access to its publications, articles may not be used for commercial purposes. The contents published are the sole and exclusive responsibility of their authors; however, the publishers can make textual adjustments, adaptation to publishing standards and adjustments of spelling and grammar, to maintain the standard patterns of the language and the journal. Failure to comply with this commitment will submit the offenders to sanctions and penalties under the Brazilian legislation (Law of Copyright Protection; nº 9,610; 19 February 1998).
.jpg)
