araucaria {datana}R Documentation

Contains plot-level variables in Araucaria araucana forests in southern Chile.

Description

These are plot-level measurement data from the Araucaria araucana forests in southern Chile, measured in 2009. The data was based on fixed-area plots of 1000 m^{2}. They are two forest stands.

Usage

data(araucaria)

Format

Contains plot-level variables as follows:

stand

Stand number

plot.no

Plot sample identificator number

x.utm

UTM coordinate in X-axis, in km

y.utm

UTM coordinate in Y-axis, in km

slope

Slope, in %

aspect

Aspect, in degrees

eleva

Elevation, in msnm

nha

Tree density, in trees/ha

gha

Basal area, in m^{2}/ha

hdom

Dominant height, in m

vha

Gross stand volume, m^{3}/ha

dg

Diameter of the average basal area tree of the plot, in cm

Source

The data are provided courtesy of Dr Nelson Ojeda at Universidad de La Frontera (Temuco, Chile).

References

Salas C, Ene L, Ojeda N, Soto H. 2010. Metodos estadísticos parametricos y no parametricos para predecir variables de rodal basados en Landsat ETM+: una comparacion en un bosque de Araucaria araucana en Chile [Parametric and non-parametric statistical methods for predicting plotwise variables based on Landsat ETM+: a comparison in an Araucaria araucana forest in Chile]. Bosque 31(3): 179-194.

Examples

data(araucaria)    
head(araucaria) 

[Package datana version 1.0.5 Index]