allometry.data: Sapwood area and depth, and bark allometric measurements

In the-Hull/TREX: Tree Sap Flow Extractor

Sapwood area and depth, and bark allometric measurements

Description

Returns raw allometric data obtained for 14 spepcies from several North-American sites. These data are used to develop allometric equations for the parameters sapwood area and depth, as well as bark thickness. A detailed description on collection method and sites is provided in Pappas et al. (2021; in prep.). The parameters were measured along an increment core extracted at breast height (DBH, 1.3 m) with a Haglof borer. Bark thickness (Bark_cm) was measured directly, while sapwood depth (Sap_cm) was estimated through discoloration and translucence. Sapwood area (Saparea_cm2 was then calculated using:

Saparea_cm = \pi (DBH/2 - Bark_cm)^2 - \pi (DBH/2 - Bark_cm - Sap_cm)

Usage

allometry.data

Format

Provides a data.frame with 651 rows and 8 columns.

Plot

Measurement plot (character)

treeID

Unique tree ID (character)

Species

Assessed species (character)

DBH_cm

Diameter at breast height (1.3 m) in cm (numeric)

Bark_cm

Bark thickness in cm (numeric)

Sap_cm

Depth of sapwood in cm (numeric)

Saparea_cm2

Sapwood area in cm^2 (numeric)

Site

Measurement site character)

Details

Currently included species are:

• Abies balsamea

• Acer rubrum

• Acer saccharum

• Betula alleghaniensis

• Betula papyrifera

• Fagus grandifolia

• Fraxinus nigra

• Picea glauca

• Picea mariana

• Picea rubens

• Pinus banksiana

• Populus tremuloides

• Quercus rubra

• Thuja occidentalis

the-Hull/TREX documentation built on Feb. 15, 2024, 9:13 a.m.