Abstract:

PAM was applied in soil column to study the effects of PAM on water stable aggregates of the alluvial soil. The results showed that PAM improved the structure of the studied soils by promoting the formation and reducing the fractal dimension of the >0.25mm water stable aggregates effectively, and the effects were enhanced as the concentration of PAM increased. The best effect was found at the 1g/kg concentration, compared with the blank control, the >0.25mm water stable aggregates increased 42.69%, while its fractal dimension decreased 10.11%.