largeplot: Tree spatial coordinates in a large sample plot in...
In biometrics: A Package for Biometrics and Modelling

largeplot

R Documentation

Tree spatial coordinates in a large sample plot in Fennoscandia

Description

Data from a large (8.8 ha) fully mapped plot in a Norway spruce (Picea abies) dominated old-growth forest in the subarctic region of Fennoscandia.

Usage

data(largeplot)

Format

Contains Cartesian position of trees and other variables in a large sample plot, as follows:

tree: Tree ID.
spp.code: Species code as follows: 1=Pinus sylvestris,2=Picea abies,3=Betula pubescens, 5=Salix caprea, 8: Sorbus aucuparia.
x.coord: Cartesian position in the X-axis, in m.
y.coord: Cartesian position in the Y-axis, in m.
status: Measurement year.
dbh: Diameter at breast-height, in cm.
toth: Total height, in m.

Source

Data were retrieved from the paper cited below, where several details might be worth reading.

References

Pouta P, Kulha N, Kuuluvainen T, Aakala T. 2022. Partitioning of space among trees in an old-growth spruce forest in subarctic Fennoscandia. Frontiers in Forests and Global Change 5: 817248. \Sexpr[results=rd]{tools:::Rd_expr_doi("https://doi.org/10.3389/ffgc.2022.817248")}

Examples

data(largeplot)
head(largeplot)
df<-largeplot
pine <- df[df$spp.code==1,]
spruce <- df[df$spp.code==2,]
birch <- df[df$spp.code==3,]
plot(spruce$x.coord,spruce$y.coord,cex=(spruce$dbh)/30,col="blue")
points(birch$x.coord,birch$y.coord,cex=(birch$dbh)/30,col="green")
points(pine$x.coord,pine$y.coord,cex=(pine$dbh)/30,col="red")

biometrics documentation built on March 20, 2026, 5:09 p.m.