基于NbS的洪泛区景观雨洪管理规划策略研究

Research on Landscape Stormwater Management Planning Strategy in Floodplain Based on NbS

近年来,越来越多的研究证明,将基于自然的解决方案(nature-based solutions,NbS)纳入到社区中能促进应对灾害风险能力。景观公共空间作为一种广泛分布的室外空间,能有效控制源头污染。然而如何以规划的形式将雨洪管理解决方案融入到景观公共空间当中、以美的形式发挥当地生态系统的多重效益是亟需解决的问题。文章综述了Nb S内涵,阐述了Nb S下的景观雨洪管理规划特点,搜集了国内外关于如何运用Nb S措施解决洪涝问题、水质问题以及生态问题的典型代表案例,并结合洪泛区特征提出了以“生态系统脆弱性分析——NbS下的景观雨洪管理规划——景观规划方案评估——运行和维护”为逻辑的规划方法,以及未来实施该方案的前景与障碍。

In recent years,a growing body of research has demonstrated that incorporating nature-based solutions(NbS)into communities enhances disaster risk resilience.As a widely distributed outdoor space,landscape public space can effectively control source pollution.However,how to integrate stormwater management solutions into the landscape public space in the form of planning,and play the multiple benefits of the local ecosystem in the form of beauty is an urgent problem.This paper summarizes the connotation of NbS,expounds the characteristics of landscape stormwater management planning under NbS,and collects typical cases at home and abroad on how to use NbS measures to solve flood problems,water quality problems and ecological problems.Combined with the characteristics of flood plains,a planning method based on"ecosystem vulnerability analysis-landscape stormwater management planning under NbS-landscape planning scheme assessment-operation and maintenance"is proposed,and the prospect and obstacles of implementing this scheme in the future are also presented.