We collected gas samples in a warm season garss filter, a cool season grass fitler, a woody buffer and a soy field every 3hr during a day (start 10:00 am November 21; finish 07:00am November 22)
Fig. 1. Collecting gas samples in wamr season grass filter in Ron Risdal site (Zack DeYoung, 13:00 November 21, 2005)
Fig. 2. Collecting gas samples in warm season grass filter in Ron Risdal site (Zack DeYoung, 22:00 November 21, 2005)
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