Net Primary Productivity Represents

Question

Net primary productivity represents
A) the rate at which energy is captured during photosynthesis.
B) the amount of biomass in excess of that needed to support plant cell respiration.
C) the amount of carbon dioxide produced by plants.
D) plant reproduction per unit area per unit time.
E) energy production in an area per unit time.

Accepted Answer

Net primary productivity (NPP) is the amount of organic matter (biomass) produced by plants minus the organic matter used by plants for respiration. It essentially measures the net amount of carbon that is being fixed by plants and made available for growth or consumption by other organisms.