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Transcript of Home | Eberly College of Arts and Sciences | West Virginia University 463 handouts February... ·...
CO2 compensation point
Aci Curve
Aber et al. 1996
Ollinger et al.. 2002
Lambers et al. 1998
Chapin et al. 1987
CO2 CO2
O2
GPP
R leaf
R non-leaf
Net Ps
NPP
LiveBiomass
Litter ProductionSoilOrganicMatter
R decomposerR herbivory
Total Ecosystem Carbon
R autotroph
NPP = GPP – R autotroph = R herbivory + Litter Production + Change in Live Biomass
True Increment
NEP = GPP - R autotroph - R herbivory - R decomposer
R total
R heterotrophNPP
Melillo et al. 1993
63 Pg C/yr
Melillo et al. 1993
53.3 Pg C/yr
NPP = FPAR * PAR * E
Potter et al. 199348 Pg C/yr
