What is net primary productivity?

What is primary productivity? Give brief description that affect primary productivity.

Define Productivity. What is primary productivity? Give brief description of factors that affect primary productivity.

What is primary productivity? In what units could you express productivity?

What is primary productivity? Explain the factors effecting it.

What is primary productivity? Why does it vary in different types of ecosystems?

What is primary productivity? List two factors affecting it. What is the major difference between GPP and NPP?

How will you calculate net primary productivity?

What is primary production?

According to David Tilman, greater the diversity, greater is the primary productivity. Can you think of a very low diversity man-made ecosystem that has high productivity ?

Show the relationship between gross primary productivity and net primary productivity.