What is the net primary productivity of the tropical rainforest if gross primary productivity in a tropical rainforest is 6 kcal/m2/yr and respiration is 3 kcal/m2/yr? A) 1.5 kcal/m2/yr B) 2 kcal/m2/yr C) 3 kcal/m2/yr D) 4 kcal/m2/yr

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