standgrowth: Data for construction of stand growth model.

In forestGYM: Forest Growth and Yield Model Based on Clutter Model

Data for construction of stand growth model.

Description

The forest survey data of two periods typically contain valuable information for analyzing forest growth and changes.

Usage

data("standgrowth")

Format

A data frame with 330 observations on the following 16 variables from the forest survey data of two periods

plot

Id of forest plot.

SI

Site index

t1

Time period 1, the unit is year.

D1

Average DBH in t1, the unit is cm.

H1

Average tree height in t1, the unit is m.

DH1

Top height in t1, the unit is m.

N1

Stand density in t1, the unit is N/ha.

G1

Basal area in t1, the unit is m2/ha.

M1

Volume in t1, the unit is m3/ha.

t2

Time period 2, the unit is year.

D2

Average DBH in t2, the unit is cm.

H2

Average tree height in t2, the unit is m.

DH2

Top height in t2, the unit is m.

N2

Stand density in t2, the unit is N/ha.

G2

Basal area in t2, the unit is m2/ha.

M2

Volume in t2, the unit is m3/ha.

Details

The forest survey data of two periods typically contain valuable information for analyzing forest growth and changes.

Author(s)

Zongzheng Chai, [e-mail]

Examples

data(standgrowth)
standgrowth

forestGYM documentation built on April 3, 2025, 6:12 p.m.