Agriculture can contribute to carbon capture through Emission savings from soil carbon accumulation via improved agricultural management (esca) and adjusted with biodiversity index (organic matter content)
Adjusted soil carbon accumulation via improved agricultural management (esca) in terms of g CO2eq/MJ should use the following formula to calculate their actual values:
esca = (CSA – CSR ) x 3.664 x 106 x 1/n x 1/p x B x N – ef
CSR is the mass of soil carbon stock per unit area associated with the reference crop management practice in Mg of C per ha.
CSA is the mass of soil estimated carbon stock per unit area associated with the actual crop management practices after at least 10 years of application in Mg of C per ha.
3,664 is the quotient obtained by dividing the molecular weight of CO2 (44,010 g/mol) by the molecular weight of carbon (12,011 g/mol) in g CO2eq/g C.
N is the period (in years) of the cultivation of the crop considered.
P is the productivity of the crop (measured as MJ biofuel or bioliquid energy per ha per year).
B = index of biodiversity measured as Mj of organic matter per Ha per year
N = fixation of N in soil by leguminoses is a parameter to evaluate the quality of soil
Ef emissions from the increased fertilisers or herbicide use