Install a flush toilet with small pondage.

安装一个贮水量水马桶。

This research discovered that soil pondage of level terrace were less than fallow sloping filed because of crops’ absorbing and using, and evaporation.

现由于作物对梯土壤水分吸收利用，以及原因，导致水平梯土壤贮水量比休闲坡地。