maple: Tree biomass of sugar maple (Acer saccharum) trees.

In datana: Datasets and Functions to Accompany Analisis De Datos Con R

Tree biomass of sugar maple (Acer saccharum) trees.

Description

These are tree-level measurement data of sample trees in the US.

Usage

data(maple)

Format

Contains tree-level variables, as follows:

tree

Sample tree identification number.

dbh

Diameter at breast height, in cm

leaf

Leaf biomass, in kg.

branch

Branches biomass, in kg.

bole

Stem, or bole, biomass, in kg.

bark

Bark biomass, in kg.

total

Total biomass, in kg.

Source

The data were provided courtesy of Dr Timothy Gregoire, Yale University, in New Haven, CT, USA.

References

• Prof. Christian Salas-Eljatib at Universidad de Chile, Santiago, Chile.

Examples

data(maple)    
head(maple) 
plot(total~dbh,data=maple)

datana documentation built on Aug. 18, 2025, 5:18 p.m.