弹性景观视角下对城市历史河道的评价

Evaluation of Urban Historical River Course from the Perspective of Elastic Landscape

文章从弹性景观视角探寻如何更好地复育城市历史河道,以北京历史河道——万泉河为例,溯源历史、调研现状,探讨其古今异同,并运用层次分析法从安全、生态、社会、文化4方面构建城市历史河道评价框架。评价结果表明,文化是城市历史河道复育亟需考虑的因子,其次为社会、生态、安全因子。基于评价结果,再从文化性、社会性和生态性3方面提出景观优化策略,以期为城市历史河道的规划设计提供借鉴。

The paper explores the ways to better restore historical river course in cities from the perspective of elastic landscape.It takes Wanquan River,a historical river course in Beijing,to discuss the differences and similarity of the river course between ancient and present times through the investigation of its history and current status,and construct an evaluation framework for urban historic river course from security,ecological,social and culture dimensions using the analytical hierarchy process(AHP).It is found that culture is the most significant factor to be considered in historical river course restoration,followed by social,ecological,and secure factors.Based on the evaluation result,the paper comes up with a landscape optimization strategy with the aim to provide reference for the planning and design of urban historical river course.