In addition, B application to soil stimulated
microbial mechanisms that decrease CH4 emission by
increasing methanotrophic abundance. This was likely due to
porous structure of biochar which increased aerobic sites
hence an increase in CH4 oxidation (Feng et al., 2012). In
addition, the alkali BC-soil pH is suitable for methanotropic
proliferation (Le Mer and Roger, 2001). All of these factors led
to a decreased ratio of methanogens to methanotrophs. In
addition, Dempster et al. (2012) demonstrated that eucalyptus
wood derived BC applied in coarse texture soil led to a
decrease in microbial biomass C.