Answer:
Net primary productivity of the tropical rain-forest = 3 kcal/m2/yr
Explanation:
Given:
Gross primary productivity in a tropical rain-forest = 6 kcal/m2/yr .
Respiration = 3 kcal/m2/yr
Find:
Net primary productivity of the tropical rain-forest
Computation:
⇒ Net primary productivity of the tropical rain-forest = Gross primary productivity in a tropical rain-forest - Respiration
⇒ Net primary productivity of the tropical rain-forest = 6 kcal/m2/yr - 3 kcal/m2/yr
Net primary productivity of the tropical rain-forest = 3 kcal/m2/yr