Few studies have been published on the influences of biochar on
the physical properties of soils (Atkinson et al., 2010). In addition to
improved chemical properties of the soils, our results indicated a particularly
significant improvement in the physical properties of the
highly weathered soil. The results indicated a significant decrease in
Bd, and an increase in porosity, Ksat, and the MWD of soil aggregates
in the biochar-amended soils, even at the low application rate
(2.5%) after incubation of 105 d (Table 2).