gross primary production


Also found in: Medical.

gross primary production

[¦grōs ′prī‚mer·ē prə′dək·shən]
(ecology)
The incorporation of organic matter or biocontent by a grassland community over a given period of time.
References in periodicals archive ?
This is a dangerous inference though, as there is no scientific consensus on the most basic metrics of Amazonian carbon exchange: the gross primary production (GPP) and its response to moisture deficits in the soil and atmosphere.
Pollination Movement of floral gametes Biological control Trophic-dynamic regulations of populations Refugia Habitat for resident and transient populations Food production That portion of gross primary production extractable as food Raw materials That portion of gross primary production extractable as raw materials Genetic resources Sources of unique biological materials and products Recreation Providing opportunities for recreational activities Cultural Providing opportunities for non-commercial uses Table 2 Ecosystem Services Value Unit Area of Chinese Terrestrial Ecosystem Forest Grassland Cropland Gas regulation 3.