primary production

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primary production

the production by living organisms (AUTOTROPHS) of organic material from inorganic sources. Gross primary production is the total amount of organic material synthesized in a given time, whereas net primary production is the amount of organic material formed in excess of that used in respiration. Compare SECONDARY PRODUCTION.
References in periodicals archive ?
"Net primary productivity of Bruguiera parviflora dominated mangrove forest at Kuala Selangor, Malaysia".
Our objective was to determine how N- and P-addition influence seasonal patterns of shallow soil moisture, canopy development, ecosystem C[O.sub.2] exchange, and above ground net primary productivity (ANPP).
The purpose of this study was to simulate the entire Sichuan grassland net primary productivity and then analyze the spatiotemporal dynamics through parameter calibration and verification for a widely accepted model.
Models may range from the simple, empirically derived, correlation of net primary productivity with air temperature and precipitation (e.g., [123]) to the detailed models with detailed biochemistry (e.g.
From 1950 to 2003, the south-west of Australia is estimated to have experienced a 15% decrease in heavy winter rainfall (Nicholls 2010), which, combined with larger temperature anomalies (Nicholls 2003), has theoretical implications for net primary productivity and associated SOC sequestration.
(1993) pointed out that global climate change and increasing concentration of atmospheric CO2 have likely to affect the net primary productivity (NPP).
Therefore, the rate of decomposition may regulate the cycle of matter in the plant community, and litterfall measurement may be an indirect way to estimate net primary productivity (Clark et al., 2001).
Aboveground net primary productivity (ANPP) in response to flooding and other environmental variables was evaluated at a 5.2-ha bottomland hardwood forest along the Olentangy River in central Ohio, USA.
Primary productivity, explain Fahey (natural resources, Cornell U.) and Knapp (biology, Colorado State U.), "is the rate at which energy is stored in the organic matter of plants per unit area of the earth's surface," while net primary productivity (NPP) is the amount left over after plant respiration.
Net primary productivity is thought to be limited by N in most temperate forests (4), but much of the N from deposition appears to be immobilized in the organic matter of the soil rather than being taken up by plants (1).
Interrelationships among the edaphic and stand characteristics, leaf area index, and aboveground net primary productivity of upland forest ecosystems in north central Wisconsin.