volume {dyntaper}

Volume between two height levels.

Description

Volume between two height levels.

Usage

volume(h1, h2, H, D, b, bh, rhd)

Arguments

h1, h2

The two height levels.

H

Tree total height.

D

Tree diameter at breast height.

b

Vector with the 5 parameters.

bh

Breast height. Typically 1.2, 1.3 or 1.4 m, or 4.5 ft.

rhd

Ratio between the height and diameter units. E.g., 100 for m and cm, or 12 for feet and inches.

Value

Volume between h1 and h2.

Examples

   b <- c(2.569, 0, 1.042, 0.3012, -1)  # parameters
   Dib <- 0.956 * 24  # convert dbh outside bark to inside bark 
   volume(0, 32, 32, Dib, b, 1.3, 100)  # total volume
   h15 <- hlevel(15, 32, Dib, b, 1.3)  # height for diameter 15
   volume(0.3, h15, 32, Dib, b, 1.3, 100)  # volume between stump and h15