Differences between aerobic conditions (with air purging) and anaerobic conditions (with nitrogen purging) in redox potential (Eh), pH, dissolved organic carbon (DOC), and dissolved P in the solution for each sediment during 24 days of incubation.

DOC and P concentrations are in mg L-1, and Eh is in mV. Compare with Fig 6.溶解有机碳（Dissolved Organic Carbon，DOC）与磷（P）的浓度单位为mg L⁻¹，氧化还原电位（Eh）的单位为mV。请对照图6。