1. Terrestrial freshwater ecosystems generate about 1.5 % of the global net primary production . 2. The energy remaining after respiration is considered the net primary production . 3. They generate 32 % of the world's net primary production . 4. Dmitri thought that the primary production can be broken down into gross and net primary production . 5. Net primary production is the rate at which new biomass is generated, mainly due to photosynthesis.6. Therefore, nutrient reabsorption during senescence presents an opportunity for a plant s future net primary production use. 7. Both gross and net primary production are in units of mass per unit area per unit time interval. 8. Some net primary production goes toward growth and reproduction of primary producers, while some is consumed by herbivores. 9. Net primary production is the fraction of gross production remaining after these loss processes have consumed some of the fixed carbon.10. All wetlands combined contribute "'only ~ 7 % "'of global net primary production , as summarized by this 2009, highly cited, peer-reviewed article.
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