Abstract: After landscape construction and maintenance management for ten years， the whole landscape effect of central reservation has been shaped since the ring expressway of Hangzhou City was completed and put into use in 2003. This paper mainly discussed the plant configuration mode， landscape scale changes and the anti\|dazzle effect through field investigation in view of the green situation of median separator. The survey showed that the plant configuration mode， as one of the most important contents of landscape effect in central reservation， mainly included five modes such as the inter\|planting spherocylinder mode， the single\|row spherocylinder mode， the hedgerow planting mode， the plastic flower arrangement mode and the louver mode， among which， the plastic flower arrangement mode showed the best landscaping effect. The rational application of plant configuration mode and plant species are the main influencing factors of landscape scale change and visual fatigue. We should pay attention to improve the landscape effect while considering the effects of plant spacing and height on anti\|dazzle effect.

Key words: ring expressway, central reservation, plant configuration, landscape scale, landscape function, Hangzhou