Question

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? 1.5 kcal/m²/yr 2 kcal/m²/yr 3 kcal/m²/yr 4 kcal/m²/yr

Explanation:

Step1: Recall net - primary - productivity formula

Net Primary Productivity (NPP)=Gross Primary Productivity (GPP)-Respiration (R)

Step2: Substitute given values

NPP = 6 kcal/m²/yr - 3 kcal/m²/yr

Step3: Calculate result

NPP = 3 kcal/m²/yr

Answer:

3 kcal/m²/yr