Fig. 6. Relationships between percent deviation of CO₂ flux (from the daily average CO₂ flux) and percent deviation of 0.05-m soil temperature (from the daily average 0.05-m soil temperature) in each chamber. Symbols: Closed circles, data collected during the hours of the day when temperature was increasing; Open circles, data collected during the hours of the day when temperature was decreasing. Error bars indicate standard deviations of duplicate chambers at each site.