0
is the production of organic compounds from atmospheric or aquatic carbon dioxide, principally through the process of photosynthesis, with chemosynthesis being much less important. All life on earth is directly or indirectly reliant on primary production. The organisms responsible for primary production are known as primary producers or autotrophs, and form the base of the food chain. In terrestrial ecoregions, these are mainly plants, while in aquatic ecoregions algae are primarily responsible. Primary production is distinguished as either net or gross, the former accounting for losses to processes such as cellular respiration, the latter not.
Wiki User
∙ 15y ago
Wiki User
∙ 13y agoits a production in ecosystem using net. >_<
Wiki User
∙ 10y agoWell, the formula is: dry mass (of plants)/area (of the place where they were growing)*time (of their growth). Units, for example: gramms/cm2*weeks.
Wiki User
∙ 10y agobiomass, organic material that can be consumed
Add your answer:
Earn +20 pts
How are gross and net primary productivity of a community related?
Gross Primary Productivity- Total amount of chemical energy stored by photosynthesis. Net Primary Productivity- Remaining energy, which is available to the consumers as food.
What has an immediate effect on net primary productivity?
light temperature, and precipitation
Equals the gross primary productivity minus the respiration rate of producers?
net
Is the net primary productivity more at he equator or poles?
NPP decreases from the equator to the poles as a result of the amount of solar radiation available. Therefore, NPP is more at the equator.
Which organisms are responsible for the majority of the net primary productivity in shallow marine waters?
Phytoplankton
What is the difference between net primary productivity and primary productivity?
primary productivity is defined as the amount of . organic matter produced per unit area over a time period by plant during photosynthesis. and gross primary productivity minus respiration losses is the net primary productivity .
How are gross and net primary productivity of a community related?
Gross Primary Productivity- Total amount of chemical energy stored by photosynthesis. Net Primary Productivity- Remaining energy, which is available to the consumers as food.
What has an immediate effect on net primary productivity?
light temperature, and precipitation
What is the gross primary productivity minus the respiration rate of producers?
net
Equals the gross primary productivity minus the respiration rate of producers?
net
Is the net primary productivity more at he equator or poles?
NPP decreases from the equator to the poles as a result of the amount of solar radiation available. Therefore, NPP is more at the equator.
Which organisms are responsible for the majority of the net primary productivity in shallow marine waters?
Phytoplankton
Net primary productivity is greatest on land?
The oxygen in the atmosphere is primarily derived from plant respiration
What name given to describe the amount of plant biomass available for consumption by heterotrophs?
net primary productivity
The amount of organic material that the autotrophic organisms of an ecosystem produce?
primary productivity.
What is the difference between gross primary productivity and net primary productivity?
Gross primary production consists of the amount of light energy that is converted to chemical energy by photosynthesis per unit of time. This chemical energy is going to two places-- respiration and growth of new biomass. Net primary production omits the energy used in respiration... just the energy going to new plant growth. Mathematically: (R = respiration) NPP = GPR - R
How can primary productivity be increased?
wooboo
