forestSAS (version 1.0.1)

treedata: Sample data for analizing the forest spatial structure.

Description

A sample data of field survey, to help us understanding the method of forest spatial structure analysis.

Usage

data("treedata")

Format

A data frame with 41 observations on the following 11 variables.

tree.id

Specific identification number of trees in the point pattern

x

x coordinates of trees

y

y coordinates of trees

sp.code

Specific code of tree species in the point pattern

dbh.cm

Diameter at breast height (DBH),1.3 m. unit:cm

h.m

Tree height,unit:m

storey

forest storey

crownwid.m

Crown width,unit:m

group

Tree group, which can be divided exotic,pioneer,transtional,climax,5 types

biomass.kg

Tree biomass,unit:kg

quality

Quality of individual trees

References

None

Examples

# NOT RUN {
data(treedata)
# }