1.8 - Primary Productivity

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AP Environmental Science

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5 Terms

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primary productivity

the rate that solar energy is converted into organic compounds via photosynthesis over a unit of time

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gross primary productivity (GPP)

total amount of sun energy (light) that plants capture and convert to energy (glucose) through photosynthesis

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respiration loss (R)

plants use up some of the energy they generate by doing cellular respiration

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net primary productivity (NPP)

the amount of energy (biomass) leftover for consumers after plants have used some for respiration

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decreased NPP

shortage of water availability, higher temperatures, and nutrient availability