Gce Model Questions Vol1 2022 Agricultural Science Question 34
Practice objective / multiple choice question 34 from the 2022 Gce Model Questions Vol1 Agricultural Science examination.
A forest stand follows logistic growth described by \(\frac{dV}{dt}=rV\left(1-\frac{V}{K}\right)\), where \(V\) is timber volume (m³ ha^{-1}), \(r=0.08\) yr^{-1} and the carrying capacity \(K=200\) m³ ha^{-1}. Currently the stand is at \(V_{0}=120\) m³ ha^{-1}.\n\n(a) What is the maximum constant annual harvest \(H_{max}\) (m³ ha^{-1} yr^{-1}) that can be sustained indefinitely?\n(b) If no harvest is taken, how many years will it take for the stand to reach \(V=150\) m³ ha^{-1}? Give your answer to one decimal place.
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About This Question
This is Gce Model Questions Vol1 2022 Agricultural Science Question 34. It is one of the objective questions from the 2022 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Hard .
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