Urban river valley landscape is made up of bottom landscape and slope landscape. After analyzing the main elements and objecsts of the dver valley landscape design,the author thinks that the design should be combined with ecological safety, natural habitat, harmoniousness, visual pleasure, favors the hydrophilicity and culture.Then, taking the Lhasa River Valley Landscape Design as an example,according to the different seasonal water yeild,the Design gives some selective interference methods which can improve the river valley landscape, and the methods tell us how to improve the landscape by changing water/wetland/sand beach/greenland elements. Based on the ecological reconstruction of the rivershore,the Design restores the Lhasa River Valley with vigor and vitality, and provides good waterfront activity space.%城市河谷景观包括谷底与谷坡景观.城市河谷景观设计应通过对不同河谷景观主要构成要素、设计对象的详细分析,结合城市安全、自然野趣,生态和谐,视觉愉悦,利于亲水,文化底蕴等6个方面进行具体设计.拉萨河河谷城区段景观设计通过深入分析不同季节的水位状况,对河谷断面进行选择性干扰,采用水景观改善、湿地景观改善、高滩绿地改善、沙地景观改善等方式,针对丰水期,平水期、枯水期等不同时间的拉萨河河谷景观提出改造方案,创造各具特色的河谷景观;并通过对河岸的生态化改造,对软质岸线、硬质岸线提出具体的剖面要求,以恢复河道的生机与活力,为人们提供良好的滨水活动空间.
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