INFLUENCE OF DIFFERENT SOURCES OF ERRORS ON THE MEASUREMENTS OF HEIGHTS OF TREES

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Gilson Fernandes da Silva Onair Mendes de Oliveira Carlos Alberto Martinelli de Souza Carlos Pedro Boechat Soares Ronielly Lemos

Abstract

The objective of this study was to evaluate the influence of different sources of variation in tree height measurements using hypsometers based on trigonometric principles. The use of this type of device requires that the measurement is at a known distance from the tree. Therefore, if these distances are small or too big, oscillations can occur during the reading of the device or difficulties to visualize the tree tops, causing errors in the height measurement. Thereby, in this study a set of tree heights were measured with a hypsometer at different distances and by three different individuals. Afterwards, the results were compared with the actual heights of the trees obtained by climbing them. Finally, after the analysis, the results indicated that the distance of measurement, along with the hypsometer used, affects in obtaining estimation of the total height.

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How to Cite
SILVA, Gilson Fernandes da et al. INFLUENCE OF DIFFERENT SOURCES OF ERRORS ON THE MEASUREMENTS OF HEIGHTS OF TREES. CERNE, [S.l.], v. 18, n. 3, p. 397-405, apr. 2016. ISSN 2317-6342. Available at: <http://cerne.ufla.br/site/index.php/CERNE/article/view/837>. Date accessed: 17 sep. 2019.
Keywords
Dendrometry, hipsometer, trigonometric principles.
Section
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