Estimated of potentil soil carbon sequestration in Canada over the next 20 years
Carbon Sequestering Practices Land Area Available

(Million Hectares)

Rate of carbon gain

(tonnes C/ha/yr)

Average co2 gain per year

million tonnes co2/yr

Total gain over 20 years million tonnes co2
On crop land 40.7 0.2 29.7 594
Marginal crop land to grass 0.5 0.8 1.5 30
Grass land - extensive use 15.1 0.0 0.0 0.0
Grass land - intensive use 4.3 0.2 3.3 66
canadian total 60.6 34.5 690

Source:  Bruce 1998 (in AH's office)