Ecosystem Productivity

Question 1

What is HANPP?

Answer 1

The Human Appropriation of Net Primary Production (HANPP) is a socioecological indicator that quantifies the effects of human iduced changes in productivity and harvest on ecological biomass flows.

Question 2

What is gross primary production?

Answer 2

Gross primary production (GPP) is the amount of chemical energy as biomass that primary producers create in a given length of time. (GPP is sometimes confused with Gross Primary productivity, which is the rate at which photosynthesis or chemosynthesis occurs.)

Question 3

What is Net Primary Production (NPP) and how does it vary from Gross Primary Production (GPP)

Answer 3

Net primary production is the rate at which all the plants in an ecosystem produce net useful chemical energy; it is equal to the difference between the rate at which the plants in an ecosystem produce useful chemical energy (GPP) and the rate at which they use some of that energy during respiration.

Question 4

What are the inputs and outputs of photosynthesis?

Answer 4

H2O + CO2 —-> O2

Question 5

What is the most important enzyme in the world.

Answer 5

Rubisco,