| crownradii {datana} | R Documentation |
Tree crown radii
Description
Crown radii measurements in cardinal directions for sample trees at the Rucamanque experimental forest, near Temuco, Chile.
Data were collected within a sample plot of 250m^{2}, located in a secondary forest stand
dominated by Nothofagus obliqua.
Usage
data(crownradii)
Format
Contains of variables, as follows:
- spp
Species code. Ro is Roble, Co is Coigue and Ol is Olivillo.
- dbh
Diameter at breast height, in cm.
- htot
Total height, in m.
- r.n
Crown radii towards the north, in m.
- r.e
Crown radii towards the east, in m.
- r.s
Crown radii towards the south, in m.
- r.w
Crown radii towards the west, in m.
- x.coord
Cardinal position at the X-axis, in m.
- y.coord
Cardinal position at the Y-axis, in m.
- crown.d
Crown diameter, in m.
Source
Data were provided by Dr Christian Salas-Eljatib (Chile).
References
- Salas C. 2001. Caracterización básica del relicto de Biodiversidad Rucamanque. Bosque Nativo, 29:3-9. https://eljatib.com/publication/2001-06-01_caracterizacion_basi/
Salas C, and Garcia O. 2006. Modelling height development of mature Nothofagus obliqua. Forest Ecology and Management 229 (1-3): 1–6. doi:10.1016/j.foreco.2006.04.015
Examples
data(crownradii)
head(crownradii)