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Inter-Annual Variations of Methane Emission from an Open Fen on the Qinghai-Tibetan Plateau: A Three-Year Study
Figure 4
Seasonal variation of CH4 emission from the three plant stands from 2005 to 2007.
Different letters indicate significant difference (P<0.05).
doi: https://doi.org/10.1371/journal.pone.0053878.g004