Determinación de la precisión de nuevas tecnologías en la medición de la altura de árboles

Forest inventories allow us to project and to estimate wood´s volume within a rodal. Historically records have been collected esignedt the field by using conventional tools such as the Bitterlich relascope which can be used to measure tree´s heights. With the development of new tools, new mobile based applications have been esigned allowing us to measure tree´s heights on smartphones. In this vein, this paper/exercise ´s main goal has been to evaluate and to determine the best Android designed applications by comparing their results which the ones from the Bitterlich relascope. The Clinometer, Clinometer, Clinômetro Florestal, Dioptra, Globe, Measure Height, MOTI, Smart Measure, Tree-h and Trees applications were evaluated. A total of sixty (60) tress were considered which have been divided into two (2) categories; smaller trees between 5 and 15 cm and longer tress between 15 and 30 cm. All trees were selected to be heterogeneous and distributed among local parks within the city of Montevideo. Clinômetro Florestal do not present significant differences with the Bitterlich relascope for trees between 5 and 15 m, and exhibit high accuracy in all categories, which is why it is one of the most convenient to operate in the field.