This research aimed toexplore the influence of soil aggregatecomposition，stability，organic carbon content andmicrobial number under different screeningmethods，and optimize the aggregate screeningmethods.Black soil was taken as theresearch object，four treatments with different screening methods were setup，including dry screening of drysoil，wetscreening of drysoil，dry screening of moistsoil，and wet screening of moistsoil.The advantages and disadvantages of these screening methods...
