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城市河流具有泄洪排涝、调蓄水源、发展航运、滨水休闲、修复生态等多种服务功能,是城市生态系统的重要载体,是展示现代城市文明的重要标志。长期以来,由于资金和理念等诸多限制,河道治理多服从于防洪排涝基本要求,对河流平面自然形态、纵向水位衔接、横向岸线处理等河流三维尺度缺乏认识,对生态修复、岸线利用、景观构建也疏于重视。本文从景观生态学与生态水利学角度,对城市河流平面形态保护与控制提出了“岸线、堤线、绿道、蓝线”四大构成要素,并简要介绍了城市河流平面形态设计的一些经验和主要方法。
Urban rivers have many service functions such as flood discharge and drainage, regulation of water resources, development of shipping, waterfront recreation and restoration of ecology. They are important carriers of urban ecosystem and an important symbol of modern urban civilization. For a long time, due to many limitations such as capital and ideology, river management is subject to the basic requirements of flood control and drainage. The lack of understanding of three-dimensional river scales, such as the natural shape of the river, the connection of the vertical water level and the lateral shoreline, Landscape construction is also neglected. In this paper, from the viewpoints of landscape ecology and ecological water conservancy, the paper puts forward the four elements of “shoreline, embankment line, greenway and blue line” for the protection and control of the urban river shape and the brief introduction of the planar shape design of the urban river Some experience and main methods.