logBiomass

the data frame holding the measures needed to perform the estimation

The name of the data frame column holding diameter of the lower section in cm

lowerD

The name of the data frame column holding the diameter of the higher section (usually smaller!) in cm

higherD

The name of the data frame column holding the length of the log or branch in m

logLength

The name of the data frame column holding the fresh density of the wood, defined as $D=\frac{V_f}{W_f}$ where $V_f$ is wood volume measured in the field (i.e. satured with water) in $m^3$ and $W_f$ is wood fresh weight in kg. Fresh density is measured in $\frac{kg}{m^3}$

density


Estimates the wood biomass of logs and truncated branches by
computing their volume (using Smalian's formula) and converting it
to fresh weight using wood fresh density.<p></p><p>Smalian's formula: $V=\frac{Sb+Sd}{2}l$ where $V$ is the log volume, 
$Sb$ is the aerea of the basal (lower) section, $Sd$ is the 
area of the higher section and $l$ is the length of the log.
</p>

The centre of mass is a crucial data for arborists in order to
consolidate a tree using steel or dynamic cables. Given field-recorded data
on branchiness of a tree, the package: (i) computes and plots the centre of
mass of the tree itself, (ii) computes branches slenderness coefficient in
order to aid the arborist identify potentially dangerous branches, and
(iii) computes the force acting on a ground plinth and its best position
relating to the tree centre of mass, should the tree need to be stabilized
by a steel cable.

logBiomass: Estimates the wood biomass of logs and truncated branches

Description

Usage

Arguments

References

See Also