Question

a valley in the rocky mountains has an annual net primary productivity of 1,320 kg c / m²/year, and the energy needed by the producers for their own respiration is 1,980 kg c / m²/year. what is the gross primary productivity of this valley? kg c / m²/year

Explanation:

Step1: Recall the formula

Gross Primary Productivity (GPP) = Net Primary Productivity (NPP) + Respiration (R).

Step2: Substitute the given values

NPP = 1320 kg C/m²/year, R = 1980 kg C/m²/year. So, GPP = 1320+1980.

Step3: Calculate the result

GPP = 3300 kg C/m²/year.

Answer:

3300 kg C/m²/year