Effect of CCS technology for CO2 leakage on C4 crops seed germination is simulated so as to provide basic information for the potential effect of CCS technology for CO2 leakage on environment. With the help of artificial CO2 climate chamber

the impacts of CO2 on the percentage

potential and the average days of germination of 4 C4 corps like corn

sorghum

millet and broom corn millet were studied under the condition of normal

10000

20000

40000

and 80000 mg/kg CO2 concentration by simulating the environment of high CO2 concentration resulted from CCS technology for CO2 leakage. The high CO2 concentration has little effect on germination percentage of corn

while the germination percentages of sorghum

millet and broom corn millet reach the maximum values at 10000

20000

20000 mg/kg CO2 concentration

respectively. High CO2 concentration also has no significant impact on the germination potential of corn

while all the germination potentials of sorghum

millet and broom corn millet reach the maximum values in 20000 mg/kg CO2. High CO2 concentration has little effect on the average germination days of four kinds of C4 crop

in which the effect toward broom corn millet is more significant than others. Various CO2 concentrations have the functions of promotion and inhibition toward the germinating percentage of C4 corps and however

the effect is not very obvious

in which the promotion range is about 1%~5% and the inhibition range is about 1%~4%. High concentration CO2 plays more significant role in promoting C4 crop seed germination potential

in which the promoting range is 9%~16%. High CO2 concentration has little effect on the average germination days of four kinds of C4 crop.