Primary Productivity

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6 Terms

1
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primary productivity

rate at which solar energy (sunlight) is converted into organic compounds via photosynthesis over a unit of time

2
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photosynthesis

carbon dioxide+H2O+solar energy→glucose+oxygen

how sun gives energy to everything

3
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cellular respiration

glucose+oxygen→CO2+water+energy

how we use energy from photosynthesis

4
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gross primary productivity (GPP)

total rate of photosynthesis in a given area

-measured in energy per unit area per unit time (ex. kcal/m²/year)

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net primary productivity (NPP)

rate of energy storage by photosynthesizes in a given area after subtracting energy lost to respiration (plant do photosynthesis and cellular respiration)

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Net Primary Productivity (NPP)=

GPP (total made)- R (amount used for cell. resp.)