Furthermore, the porosity seemed to present an opposite trend to
soil aggregation during the incubation especially for the 5% biocharamended
soil. Obvious increase of MWD of aggregate led to decrease
of porosity of the 5% biochar-amended soil from the beginning to the
end of the incubation. This might indicate that a high application rate
(5%) of the biochar mightmore facilitate to connect with microaggregates
to form macroaggregates in the soils (Fig. 4; b) with time, followed by
decreasing porosity.