GHGVcalc

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Biogeochemical Attributes

Attribute	Source	Value
Aboveground biomass: live (Mg/ha)
Root biomass (Mg/ha)
Dead wood (dead trees, course woody debris) (Mg/ha)
Litter (Mg/ha)
Peat (Mg/ha)
Potential Soil Organic Matter loss (Mg/ha)

Land-Clearing Fire Characteristics

Attribute	Source	Value
Fraction of combustible biomass (aboveground, wood, litter) burned
Fraction of root biomass burned
Fraction of peat burned
Fraction of SOM burned
Proportional release of CO2 for each unit of biomass burned (kmol/ Mg dry matter)
Proportional release of CH4 for each unit of biomass burned (kmol/ Mg dry matter)
Proportional release of N2O for each unit of biomass burned (kmol/ Mg dry matter)

Organic Matter Decomposition Following Clearing

Attribute	Source	Value
Decay constant (k) for combustible biomass
Decay constant (k) for roots
Decay constant (k) for peat
Decay constant (k) for SOM
% termite mediated decomposition
Proportional release of CH4 for each unit of combustible biomass decomposed
Proportional release of CO2 for each unit of litter biomass decomposed
Proportional release of CO2 for each unit of peat biomass decomposed
Proportional release of CO2 for each unit of litter biomass decomposed
Proportional release of CH4 for each unit of combustible biomass decomposed
Proportional release of CH4 for each unit of root biomass decomposed
Proportional release of CH4 for each unit of peat biomass decomposed
Proportional release of CH4 for each unit of litter biomass decomposed
Proportional release of N2O for each unit of combustible biomass decomposed
Proportional release of N2O for each unit of root biomass decomposed
Proportional release of N2O for each unit of peat biomass decomposed
Proportional release of N2O for each unit of litter biomass decomposed

Ongoing (Annual) Greenhouse Gas Exchange

Attribute	Source	Value
Average annual net ecosystem-atmosphere CO2 exchange (kmol/ha/yr)
Average annual net ecosystem-atmosphere CH4 exchange (kmol/ha/yr)
Average annual net ecosystem-atmosphere N2O exchange (kmol/ha/yr); + indicates uptake by ecosystem, - indicates release to atmosphere.

Age-Dependent Changes in Annual Greenhouse Gas Exchange

Attribute	Source	Value
Age of transition (time at which biomass accumulation rate declines) (years)
Average annual net ecosystem-atmosphere CO2 exchange (kmol/ha/yr) after transition
Average annual net ecosystem-atmosphere CH4 exchange (kmol/ha/yr) after transition
Average annual net ecosystem-atmosphere N2O exchange (kmol/ha/yr) after transition

Natural Fire-Recovery Cycles

Attribute	Source	Value
Rate of disturbance events (#/year)
Time required to recover pre-disturbance biomass stocks (years)
Average annual net ecosystem-atmosphere CO2 exchange during recovery (kmol/ha/yr)
Average annual net ecosystem-atmosphere CH4 exchange during recovery (kmol/ha/yr)
Average annual net ecosystem-atmosphere N2O exchange during recovery (kmol/ha/yr)
Fraction of combustible biomass (aboveground, wood, litter) burned (when disturbance is fire)
Fraction of root biomass burned (when disturbance is fire)
Fraction of peat biomass burned (when disturbance is fire)
Decay constant (k) of combustible biomass (aboveground, wood, litter) following disturbance
Decay constant (k) of combustible root biomass following disturbance
Decay constant (k) of peat following disturbance

Management-Related GHG Emissions

Attribute	Source	Value
Average annual CO2 emissions associated with management (kmol/ha/yr)

Fossil Fuel Displacement

Calculate Ethanol Yield and Displaced Gasoline C0₂ Emissions

Calculate Gasoline C0₂ Emissions Displaced

Attribute	Source	Value
Biomass Yield (Mg dry biomass/ ha/ yr)
Conversion Efficiency (liters ethanol/ Mg dry biomass)
Ethanol Yield (liters ethanol/ ha/ yr)
Displaced Gasoline CO2 Emissions (kmol C02/ ha/ yr)

Biophysical Attributes

Biophysical

Attribute	Source	Value
Net Radiation
Latent Heat Flux

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Biogeochemical
Biophysical

Missing values (particularly common for biophysical components) indicate that climate regulating values cannot be calculated because of insufficient data.

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