shape

The shape coefficient of the tree is the ratio of the actual
volume of the tree to the volume of a cylinder having as base the surface of
the section at 1.3 m (or a given breast height) and as length, the height
(at bole level) of the tree.

Computation of dendrometric and structural
parameters from forest inventory data. The objective is to provide an
user-friendly R package for researchers, ecologists, foresters,
statisticians, loggers and others persons who deal with forest inventory
data. Useful conversion of angle value from degree to radian, conversion from
angle to slope (in percentage) and their reciprocals as well as principal
angle determination are also included. Position and dispersion parameters
usually found in forest studies are implemented. The package contains
Fibonacci series, its extensions and the Golden Number computation.
Useful references are Arcadius Y. J. Akossou, Soufianou Arzouma,
Eloi Y. Attakpa, Noël H. Fonton and Kouami Kokou (2013) <doi:10.3390/d5010099>
and W. Bonou, R. Glele Kakaï, A.E. Assogbadjo, H.N. Fonton, B. Sinsin (2009)
<doi:10.1016/j.foreco.2009.05.032> .

Narcisse Yehouenou

dendrometry

Forest Estimations and Dendrometric Computations

Information and Communication Technology for you ONG (ICT4U-ONG) 

shape function

<dl><dt>volume</dt>
<dd>numeric, tree real volume.</dd>
<dt>height</dt>
<dd>numeric, tree height.</dd>
<dt>dbh</dt>
<dd>numeric, diameter at breast height (DBH).</dd>
<dt>basal</dt>
<dd>numeric, basal area. Is used when <code>dbh</code> is not specified.</dd></dl>

Arguments

The shape coefficient — shape

<dl>

<dt>volume</dt>
<dd>numeric, tree real volume.</dd>


<dt>height</dt>
<dd>numeric, tree height.</dd>


<dt>dbh</dt>
<dd>numeric, diameter at breast height (DBH).</dd>


<dt>basal</dt>
<dd>numeric, basal area. Is used when <code>dbh</code> is not specified.</dd>

</dl>

shape: The shape coefficient

Description

Usage

Value

Arguments

See Also

Examples