fagus {PASWR} | R Documentation |
Retained Carbon in Beech Trees
Description
The carbon retained by leaves measured in kg/ha is recorded for forty-one different plots of mountainous regions of Navarra (Spain), depending on the forest classification: areas with 90% or more beech trees (Fagus Sylvatica) are labeled monospecific, while areas with many species of trees are labeled multispecific.
Format
A data frame with 41 observations on the following 3 variables:
- Plot
plot number
- carbon
carbon retained by leaves measured in kg/ha
- type
a factor with levels
monospecific
andmultispecific
Source
Gobierno de Navarra and Gestion Ambiental Viveros y Repoblaciones de Navarra, 2006. The data were obtained within the European Project FORSEE.
References
Ugarte, M. D., Militino, A. F., and Arnholt, A. T. (2008) Probability and Statistics with R. Chapman & Hall/CRC.
Examples
boxplot(carbon ~ type, data=fagus)
[Package PASWR version 1.3 Index]