Gas sampling

March 4, 2006

Collected gas samples in RWB, RWG, RCG, RCF, LWB, and LWG.

Fig. 1 Lindsey is watching her watch to check sampling time. Gas samples must be collected every 15 min for 45 min in each gas chamber (Ron Risdal warm season grass filter)

Fig. 2. Gas sampling sites in Ron Risdal Woody buffer.

Fig. 3. Dong-Gill is logging a temperature value of inside gas chamber after finishing gas samples collecting. Whenever we collect gas samples, we need to measure the air temperature of inside gas chamber to calculate the mass of N2O in the gas.

Fig. 4. Gas sampling points in Lonnie Strum warm season grass filter. Phil is measuring soil temp. and moistere and air temp.




With Phil and Lindsey , Photo by Phil.