Mathematics · Forest Mensuration
Using a wedge prism with a Basal Area Factor (BAF) of 2 m2/ha, the tally of trees from a sampling point is as follows: i. Trees with overlapping images ('in' trees): 8 ii. Trees with margins just touching ('borderline' trees): 11 Calculate the estimated total basal area per hectare.
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- 127.0 m2/ha (Note: borderline trees count as half, so Tally = 8 + 11/2 = 13.5, and Basal Area = 13.5 × 2 = 27 m2/ha)✓
- 240.5 m2/ha
- 327.0 m2/ha
- 413.5 m2/ha
Correct answer
27.0 m2/ha (Note: borderline trees count as half, so Tally = 8 + 11/2 = 13.5, and Basal Area = 13.5 × 2 = 27 m2/ha)
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