A Study on Effects of Different Water retention Treatments

The effects of different water retention treatments such as covering with veil, covering with grass and using water retention preparation are studied. The conclusion obtained is as follows: the SWC was significantly increased by using water retention preparation; the sequence of water retention effect in three kinds of land was old terraced fieldslope fieldnew terraced field; the sequence of water retention effect was covering with veilcovering with grasscheck.