The purpose of this research project is to gain a better understanding of carbon dioxide fluxes between soil and air and to determine the best way in which the sampling method should be done. The previous way that this has been done at Winona State University has been very insufficient as well as imprecise. The two main areas in which these improvements can be made are focused on the way in which the sample is collected as well as the canister itself. The sampling storage method was compared between the use vials and syringes for the air sample. The syringes proved to be the better option for they have a tighter seal to keep the air sample inside until the sample can be ran through the gas chromatography machine. The second way in which improvements are being made is to the gas canister itself. A smaller, more easily portable canister was made, one with a fan and one without a fan. Further test need to be completed before a canister design can be accepted as a reliable source for measuring carbon dioxide fluxes between soil and air.

Improvements in measuring fluxes of carbon dioxide and other greenhouse gases between soil and air

247th National Meeting (2014)

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