| carbohydrates {datana} | R Documentation |
Carbohydrates concentrations in tissues of several tree species.
Description
Dataset contains 863 observations, about total soluble carbohydrate, starch, and non structural carbohydrates concentrations per mass unit and per volume unit, in three tissues in early summer and early autumn 6-8 adult trees of different species at three elevations of altitudinal gradients sampled in four locations of Chile and Spain.
Usage
data(carbohydrates)
Format
Contains 16 variables, 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).
- tissue
Type of tissue, new developing twings, stem sapwood and branches.
- season
Meauserement season (spring or autumn).
- elevation
Type of elevation. "Treeline", intermediate named as "mid", and closed or montane forest named as "low".
- tree
Id for tree.
- tree.site
Id site for each location of study.
- tss
Value of concentrations soluble carbohydrate per mass unit.
- st
Value of concentrations starch per mass unit.
- nsc
Value of concentrations non structural carbohydrates per mass unit.
- tss.nsc
.
- wd
It might be 'wood density', but not sure.
- tss.mv
Value of concentrations soluble carbohydrate per volume unit.
- st.mv
Value of concentrations starch per volume unit.
- nsc.mv
Value of concentrations non structural carbohydrates per volume unit.
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(carbohydrates)
head(carbohydrates)
boxplot(nsc~species, data=carbohydrates)
with(carbohydrates, tapply(tss, list("Elevation"=elevation.class, "Species"=species), mean))