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. 2008 Feb 11;363(1498):1839–1848. doi: 10.1098/rstb.2007.0031

Figure 7.

Figure 7

Measurements of surface flux of (a) Carbon dioxide (CO2 (gC m−2 h−1)), (b) δ13C and (c) Δ14C in the exclusion (grey) and control plots (black). The error bars represent standard errors of the mean.