Wutzler08BeechStem: Wutzler08BeechStem

In twNlme: Standard errors for basic nlme and gnls model predictions

Description

Tree weights by tree and stand properties.

Usage

Wutzler08BeechStem

Format

data.frame with columns

author

Original author of the data

stand

Identifier of the forest plot

alt

Altitude above sea level in m

si

site index of the plot, i.e. expected tree height at age 100, in m

age

tree age in yr

stockden

stocking density

dbh

tree diameter at breastheight (1.3m) in cm

height

tree height in m

stem

stem weight in kg

Source

http://pubs.nrc-cnrc.gc.ca/rp/rpsuppl/x07-194e.RData

References

Wutzler, T.; Wirth, C. & Schumacher, J. (2008) Generic biomass functions for Common beech (Fagus sylvatica L.) in Central Europe - predictions and components of uncertainty. Canadian Journal of Forest Research, 38, 1661-1675

Examples

     	data(Wutzler08BeechStem)
     	plot( log(stem)~dbh, col=author, data=Wutzler08BeechStem)
     

twNlme documentation built on May 2, 2019, 6:48 p.m.