Study on transport mechanism of <14>^CO_2 near the ground surface

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  • 地表面近傍における<14>^CO_2移行特性に関する研究

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Concentration of ^<14>CO_2 and flux of ^<14>CO_2 from the ground surface were measured at Nagoya University in October 2001. This measurements are useful to provide transport mechanism of ^<14>CO_2 near the ground surface. Distribution of ^<14>CO_2 suggested that transport mechanism of ^<14>CO_2 in soil is similar to that of CO_2. Distributions of specific activity of CO_2 in soil air is obviously not uniform, and have higher value than that of atmospheric CO_2. Time variation of ^<14>CO_2 flux ranged from 0.3×10^<-6> to 2.3×10^<-6> Bq m^<-2>s^<-1>.

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