[ABE-L] seminário, online, dia 30/6, às 11h

[Clarice Garcia Borges Demetrio]

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Saudações, Clarice

30/06, 11h

Online

Breno Gabriel da Silva (ESALQ/USP)

A historical review on hypsometric regression models

*Data/Horário:* 30/06, 11h – Online (português)

*Palestrante:* Breno Gabriel da Silva

*Title:* A historical review on hypsometric regression models

*Summary:*

Regression models have been widely used in forest sciences. In relation to
hypsometric modeling, they bring a series of potentialities associated with
obtaining height estimates considering homogeneous or non-homogeneous
stands. The models initially proposed for height estimation as a function
of diameter at breast height, thanks to computational advances, have been
extended to include other variables. This article aims to present a
literature review, following the methodological procedures described by
Cervo and Bervian (2011), and to expose a support material for forest
biometricians, regarding the choice of a hypsometric model, in which
historical information is brought, the generating process of such models,
species in which they have been commonly applied and how some of them can
be generated from ordinary differential equations. The results showed that
most models were developed according to the characteristics of the forest
stand and/or the behavior of the hypsometric curve. It is noted that the
work of Trorey (1932) was the pioneer in the use of a mathematical equation
to demonstrate the relationship between tree height and diameter. The use
of non-linear models in forestry studies emerged with the work of Turnbull
(1963), while generic models gained ground in forest biometry after the
developments of Curtis (1967). It was possible to show in this study that
two generic ordinary differential equations can give rise to a number of
existing models.
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