Compost incorporation, soil aggregates and organic C sequestration in two different Tuscan soils.

Our data refer to two soils, a clay soil and a sandy soil, subjected to a long term compost incorporation in order to ameliorate soil fertility. We measured the dynamic of pore size distribution and total porosity evolution together with water soil aggregates stability. Our results confirmed the beneficial effect of the compost on soil structure of both soils and that the potential sequestration of soil organic C is related to the granulometry and mineralogical features of the two soils.