Pre-rooted willow trees (Salix alba) were kept in an Erlenmeyer flask of 500 mL with 450 mL spiked aqueous solution for 12 d.

• 长出新根须和嫩叶的柳树枝条在一容积500 mL的锥型瓶中生长12 d(其中MTBE溶液450mL)来观察MTBE对柳树生长的影响,同时测定柳树对MTBE的吸收和降解。