araucaria dataset

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

These are stand variables data from Araucaria araucana forests in southern Chile, measured in 2009. The data was based on fixed-area plots of 1000 m$^2$. There are two forest stands. data

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, in 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).

data(araucaria)

Examples

data(araucaria)    
head(araucaria)

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. tools:::Rd_expr_doi("10.4067/S0717-92002010000300002")