| baiTreelines {datana} | R Documentation |
Annual basal area increment for four tree species.
Description
The dataset contains 157 observations of the last ten years in 6-8 adult trees of different species at three elevations of altitudinal gradients sampled in four locations in Chile and two in Spain.
Usage
data(baiTreelines)
Format
Contains seven columns, as follows:
- climate
Climate of each location, mediterranean and temperate.
- site
Name of Location of study (termmas:Termas de Chillan , antillanca:Antillanca area within Puyehue National Park, castillo:Cerro Castillo Natural Reserve, farellones:Farellones in Central Chile, pyrenees: Sierra de Cutas area in Spanish Central Pyrenees,sierra:Sierra Nevada).
- species
name species of study (lenga: Nothofagus pumilio, frangel: Kageneckia angustifolia, uncinata: Pinus uncinata, sylvestris: Pinus sylvestris).
- elevation
Type of elevation. "Treeline", intermediate named as "inter", and closed or montane forest named as low.
- tree
Sample tree code.
- delta.g
Increment in basal area (in cm
^{2}) during the last 10 years.- pai.g
Periodic annual increment of basal area (in cm
^{2}/yr), during the last 10 years.
Source
The data were obtained from the DRYAD repository at doi:10.5061/dryad.ks97h.
References
Piper F, Vinegla B, Linares J, Camarero J, Cavieres L, Fajardo A. 2016. Mediterranean and temperate treelines are controlled by different environmental drivers. Journal Ecology. 104: 691-702.
Examples
data(baiTreelines)
head(baiTreelines)
with(baiTreelines, tapply(pai.g, list("Elevation"=elevation.class, "Climate"=climate), mean))