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)