Hi, the question is incomplete. However, it is about the calculation of NPP and GPP.
Answer:
NPP is known as Net Primary Productivity while GPP is known as Gross Primary Production. NPP is the total amount of carbon consumed during the process of photosynthesis. It is equivalent to the difference between GPP and the amount of carbon used up during respiration (R). GPP is the production rate of the material.
Step-by-step explanation:
NPP is known as Net Primary Productivity while GPP is known as Gross Primary Production. NPP is the total amount of carbon consumed during the process of photosynthesis. It is equivalent to the difference between GPP and the amount of carbon used up during respiration (R). GPP is the production rate of the material.
NPP = GPP - R