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AP Environmental Science
primary productivity
the rate that solar energy is converted into organic compounds via photosynthesis over a unit of time
gross primary productivity (GPP)
total amount of sun energy (light) that plants capture and convert to energy (glucose) through photosynthesis
respiration loss (R)
plants use up some of the energy they generate by doing cellular respiration
net primary productivity (NPP)
the amount of energy (biomass) leftover for consumers after plants have used some for respiration
decreased NPP
shortage of water availability, higher temperatures, and nutrient availability
