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. Author manuscript; available in PMC: 2014 Mar 9.
Published in final edited form as: Glob Chang Biol. 2013 Sep 11;19(12):3835–3847. doi: 10.1111/gcb.12306

Figure 2. Temporal variation of soil CO2 efflux in the Aranjuez (a, b) and Sorbas (c, d) experimental sites.

Figure 2

Red and light yellow arrows indicate the dates when the warming (WA) and rainfall exclusion (RE) treatments were installed, respectively. Data are means ± SE (n = 10 and 8 for Aranjuez and Sorbas, respectively).