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Fig. 3. Effects of varying the DPM/RPM ratio, input distribution and clay content on model outputs. Input 8.28 Mg C ha-1 yr-1, distributed uniformly through the year; DPM/RPM ratio 1.44; clay content 286 g kg-1 soil (same as Fig.1). Input 8.28 Mg C ha-1 yr-1, distributed uniformly through the year; DPM/RPM ratio 0.67; clay content 286 g kg-1 soil. ······ Input 8.28 Mg C ha-1 yr-1, all added as a simple pulse in June; DPM/RPM ratio 1.44; clay content 286 g kg-1 soil. - - - - - Input 8.28 Mg C ha-1 yr-1, distributed uniformly through the year; DPM/RPM ratio 1.44; clay content 153 g kg-1 soil.