Basal Area per Acre (Prism Cruise)
Stand basal area per acre from a variable-radius (prism / angle-gauge) point sample: BAF x the count of trees 'in', plus the per-tree basal area (0.005454 x DBH^2) and the trees-per-acre one in-tree represents. The prism counts by angular size, not distance -- the basal area per acre is independent of any plot radius.
Formula and source
basal_area_per_acre = BAF x in_tree_count; per_tree_ba = 0.005454 x DBH^2; trees_per_acre = BAF / per_tree_ba.
Prism (variable-radius / angle-gauge) point sampling, per USDA Forest Service mensuration and Bitterlich variable-radius plots, by name.
Audience
This tile is built for trades and the adjacent professions in the Agriculture and Forestry group. The interactive calculator runs entirely in your browser. No account, no fee, no advertising, no tracking.
Related tools
Posture
Rough Logic answers the math question the working professional asks on the job. The site is a calm, fast, ad-free, account-free, ever-free reference. It does not interpret code. It does not replace the licensed professional. It does not store your inputs. The Authority Having Jurisdiction governs all installations and inspections.