The Study On Infiltration Of Rainfall And Application Of Bulk Subsoil

It is widely known that the shortage of water resource in northwestward region is very serious. So, how to resolve this problem is a important problem. The current efficient method is water-harvesting. This paper constructed a improved Green-Ampt mode, and the calculation is satisfied to the actual demand. The simulation rainfall and the field experiments have been made in this article, and the technology of bulk subsoil was applied in bess plateau to observe the effect for increasing the infiltration and the affection for the growth of Caragana. The study shows that the bulk subsoil can increase the rate of infiltration greatly and improve the physical structure of soil and decrease the amount of water distribution along the slope again. Further more, the growth of Caragana in area that was subsoiled increased 50.15% compare to contrast region. This paper suggests that the technology of bulk subsoil should be spread in arid region and semi-arid region as well as bess plateau.