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Lecture oct 27th

Lecture oct 27th - Carbon Energy flow through...

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26/10/2010 1 Carbon & Energy flow through Ecosystems (continued) ENVR 200 Oct 27, 2010 “Short carbon cycle” C removed from atmosphere and input into ecosystems via photosynthesis C stored in ecosystem biomass C lost from ecosystems and returned to atmosphere via respiration and decomposition Broad scale patterns of productivity & carbon Gross Primary Productivity (GPP) • Amount of carbon assimilated through photosynthesis What factors control GPP in an ecosystem? Major factors governing GPP at the ecosystem scale Water Net Primary Production (NPP) plant
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