The order of runoff of the six grass species was as follows:Festuca arundinaceae > James > Agropyron smithii > Bozoisky > Bromus inermis > Bromus biebersteinii;

• 2.；在试验所选的六个草种中；径流量的大小排序为:苇状羊茅>垂穗披碱草>蓝茎冰草>新麦草>无芒雀麦>草地雀麦;