Gce Model Questions Vol1 2018 Agricultural Science Question 26
Practice objective / multiple choice question 26 from the 2018 Gce Model Questions Vol1 Agricultural Science examination.
A forest plantation covers 100 ha and is initially stocked with 120 trees per hectare. At age 10 years a thinning removes 25 % of the trees uniformly. After thinning, each remaining tree grows at a constant rate of 3 % per year in volume and reaches a volume of 0.6 m³ at age 30 years. \(\text{(i)}\) Determine the volume of a tree at age 10 years. \(\text{(ii)}\) Calculate the total timber harvested over the whole rotation, including the thinning at age 10 and the final harvest at age 30. \(\text{(iii)}\) Find the average annual timber yield (total timber divided by the 30‑year rotation).
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About This Question
This is Gce Model Questions Vol1 2018 Agricultural Science Question 26. It is one of the objective questions from the 2018 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Hard .
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