Search results
Primary production is the production of chemical energy in organic compounds by living organisms. The main source of this energy is sunlight but a minute fraction of primary production is driven by lithotrophic organisms using the chemical energy of inorganic molecules.
1 Jan 2021 · Primary production provides the organic carbon that ultimately supports the metabolism of autotrophs and heterotrophs in ecosystems. Understanding the pathways that organic carbon follows through an ecosystem leads to distinctions among GPP, NPP, and NEP.
10 Jun 2024 · Primary production is the creation of new organic matter from inorganic substrates, and it is this organic matter that serves as the base of the food web for most marine consumers. Primary production generally refers to the process of photosynthesis, or the utilization of light energy to produce chemical fuels that is undertaken by plants and ...
primary productivity, in ecology, the rate at which energy is converted to organic substances by photosynthetic producers (photoautotrophs), which obtain energy and nutrients by harnessing sunlight, and chemosynthetic producers (chemoautotrophs), which obtain chemical energy through oxidation.
Land plants, or autotrophs, are terrestrial primary producers: organisms that manufacture, through photosynthesis, new organic molecules such as carbohydrates and lipids from raw inorganic...
15 Feb 2021 · Basically, primary production is generation of food by making organic matter from inorganic matter. Primary process is photosynthesis (in shallow surface waters), and small amount from chemosynthesis (at deep sea vents and underground).
Primary producers (usually plants and other photosynthesizers) are the gateway for energy to enter food webs. Productivity is the rate at which energy is added to the bodies of a group of organisms (such as primary producers) in the form of biomass. Gross productivity is the overall rate of energy capture.
