datana (version 1.0.6)

largetrees: Large trees in forests near Tolga, in Eastern Norway.

Description

The study area is situated in the municipality of Tolga, located in Hedmark County, Eastern Norway. Field plots 32 m × 32 m in size were established in forests. A total of 1109 plots were sampled. In each plot, Scots pines (Pinus sylvestris L.). trees with a stem diameter larger than 35 cm were measured and counted.

Usage

data(largetrees)

Format

Contains two variables, as follows:

plot

Plot code.

y

Number of large-diameter trees in a given sample plot.

References

- Korhonen L, Salas C, Ostgard T, Lien V, Gobakken T, Naesset E. 2016. Predicting the occurrence of large-diameter trees using airborne laser scanning. Canadian Journal of Forest Research 46:461–469. tools:::Rd_expr_doi("10.1139/cjfr-2015-0384")

Examples

data(largetrees)    
head(largetrees) 
hist(largetrees$y)