Carbon sequestration in millet phytoliths

	This shows the ratio of millet phytoliths carbon encapsulation and dry biomass Click here for more information.

	This shows the PhytOC accumulation rate of foxtail millet during 1949 to 2008. Click here for more information.

Common millet and foxtail millet would sequestrate 0.023 ± 0.015 and 0.020 ± 0.010 t CO2 ha-1 a-1, respectively. Assuming a similar phytolith occluded carbon accumulation rate as for common millet, this could result in the sequestration of 2.37 × 106 t CO2 per year for the 62.4 × 106 ha dry-farming crops in China. The total phytolith carbon sequestration rate was 7×106 t CO2 during 1949 to 2008.