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Relation between the δ13C of acetate-methyl and the δ13C of total acetate measured in soil from (A) Vercelli, and (B) Fuyang, amended with either rice straw or maize straw and incubated under anoxic conditions in the absence or presence of CH3F (1 and 2% in Vercelli and Fuyang soil, respectively); mean ± SE, n = 3.
