Global Energy Budget

Global Energy Budget - Production • Gross Primary...

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1/31/11 Global Energy Budget Each day Earth receives 1022joules of solar radiation Equivalent of 100 million atomic bombs Most of that energy is reflected by the atmosphere, or absorbed by water or the ground Plants only use the part of solar radiation we call visible light Of visible light only 1% is converted to organic matter But producers generate 170 billion tons of organic matter a year
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1/31/11 Gross and Net Primary
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Unformatted text preview: Production • Gross Primary Production – Amount of light energy converted to chemical energy by photosynthesis per unit of time – Not all of this production is stored as organic material because the plants use some molecules as fuel for respiration • Net Primary Production – Amount of chemical energy available to the next trophic level – NPP = GPP – R (respiration)...
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This note was uploaded on 01/30/2011 for the course BIOL 001 taught by Professor Nathan during the Spring '10 term at George Mason.

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Global Energy Budget - Production • Gross Primary...

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