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basal_area_and_trees_per_acre_table_for_prism_sampling
Basal Area and Trees Per Acre Table for Prism Sampling
| Plots (trees) | Plots (trees) | ||||
|---|---|---|---|---|---|
| DBH | Basal Area | Per Acre | DBH | Basal Area | Per Acre |
| Inches | Sq. Feet | BAF = 10 | Inches | Sq. Feet | BAF = 10 |
| 4 | .087 | 114.94 | 18 | 1.767 | 5.66 |
| 5 | .136 | 73.53 | 19 | 1.969 | 5.08 |
| 6 | .196 | 51.02 | 20 | 2.182 | 4.58 |
| 7 | .267 | 37.45 | 22 | 2.640 | 3.79 |
| 8 | .349 | 28.65 | 24 | 3.142 | 3.18 |
| 9 | .442 | 22.62 | 26 | 3.69 | 2.71 |
| 10 | .545 | 18.35 | 28 | 4.28 | 2.34 |
| 11 | .660 | 15.15 | 30 | 4.91 | 2.04 |
| 12 | .785 | 12.74 | 32 | 5.59 | 1.79 |
| 13 | .922 | 10.84 | 34 | 6.31 | 1.58 |
| 14 | 1.069 | 9.35 | 36 | 7.07 | 1.41 |
| 15 | 1.227 | 8.15 | 38 | 7.88 | 1.27 |
| 16 | 1.396 | 7.16 | 40 | 8.73 | 1.14 |
| 17 | 1.576 | 6.35 | |||
For a prism calibrated to BAF = 10, a tree with a DBH of
10 inches represents a plot of (1/18.35) of an acre.
For other prisms calculate the plots per acre by using this
formula:
Plots per Acre = (BAF of prism/Basal Area)
To obtain Basal Area, multiply (DBH)2 by .00545
Example no. 1: (10“)2 X .00545 = .545sq.ft.
Example no. 2: (16”)2 X .00545 = 1.395sq.ft
basal_area_and_trees_per_acre_table_for_prism_sampling.txt · Last modified: 2013/10/11 19:55 by ddrummond
