Fig. 5. Soil respiration and soil temperature recorded every 110 min over an 8-wk period beginning in mid-September, 2001. Data are means of four automated soil chambers. Standard error bars are shown at periodic time intervals for the automated system. Also shown are the means and standard errors (n = 12) of five point-in-time measurements taken with a closed system infrared gas analyzer (IRGA) adjacent to the soil chambers.

Return to article