this in turn, led to a rise in floodwater pH found in both BC and RS
treated soils observed in pot experiment. Thirdly, pH rise
more in BC than in RS treated soils because BC-derived ash,
which contains oxides and carbonate of basic cations (Joseph
et al., 2009). This was found in both pot and microcosm
experiments. This rise in soil pH was particularly rapid at the
initial change (4 DAF) in this low pH buffering capacity soil
with high (50%) sand content. Empirical data from this
research also showed a decrease in soil Eh values with rising
pH, illustrating the inverse relationship between Eh and pH.