Ecosystems Ecology
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| biomass | mass of organisms per unit area
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| primary productivity | rate at which biomass is produced per unit area by plants (g m^2) gross primary
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| productivity (GPP) | total fixation of biomass/energy by photosynthesis. Some is lost by the plant when it respires (R) net primary productivity
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| (NPP) | the difference between GPP and R; the actual rate of production of new biomass that is available for consumers
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| What happens to the net energy absorbed? | 1.Stored A. Change temperature of biomass B. Stored as chemical energy (PS); 2.Loss of energy to other ecosystems (G, ground heat flux); 3.Vaporize water (LE, latent heat flux via evapotranspiration); 4.Warm the air (H, sensible heat flux)
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| Roots vary in? | 1) Size classes; 2)Depth; 3) Nutrient content ; 4) Respiration; 5) Turnover
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Created by:
hcmeek
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