biomass: Beech Trees

Description Usage Format Source References Examples

Description

Several measurements of 42 beech trees (Fagus Sylvatica) taken from a forest in Navarra (Spain).

Usage

1

Format

A data frame with 42 observations on the following 4 variables:

Dn

diameter of the stem in centimeters

H

height of the tree in meters

PST

weight of the stem in kilograms

PSA

aboveground weight in kilograms

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

1
plot(log(PSA)~log(Dn), data=biomass)


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