Gce Model Questions Vol1 2025 Agricultural Science Question 16
Practice objective / multiple choice question 16 from the 2025 Gce Model Questions Vol1 Agricultural Science examination.
Consider a plantation of a fast‑growing timber species covering 100 ha. Each hectare is initially stocked with 80 trees of average DBH 10 cm. The volume (m³) of a single tree can be estimated by \(V = 0.0001\,\text{DBH}^{2.5}\). DBH increases linearly by 0.5 cm each year. The timber price is N 150 per m³ and the cost of re‑planting after a clear‑cut is N 2000 per ha. Using a discount rate of 5 % per annum, determine the rotation age (in whole years) that maximises the net present value per hectare. Assume the whole stand is harvested at the end of the rotation.
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This is Gce Model Questions Vol1 2025 Agricultural Science Question 16. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Hard .
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