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Fig. 3. Methane fluxes during incubation of surface crust material from storages with untreated cattle slurry (UCS) or anaerobically digested cattle slurry (DCS). The subscript terms C and 0 indicate presence or absence, respectively, of an additional solid cover. After an initial rate determination, the material was partially dried, and later rewetted, both times with determination of CH4 fluxes (see text). The data represent mean ± standard error (n = 3). OM, organic matter.
