北京市永定河平原城市段生态治理经验及建议

Review and suggestions on river ecological management in urban section of Yongding River in Beijing

通过对北京市永定河平原城市段生态治理工程设计方案分析,结合工程建成后运行维护情况,总结了生态治理工程经验:即将防洪功能放在首位并突出城市河道的综合功能;提出了永定河生态修复标准并指导设计;设计和施工突出因地制宜、资源节约、环境融合的理念;综合使用减渗技术。分析工程建成后的运行维护情况,并结合现场调查,总结工程在生态治理技术标准、生态护岸类型、水源保障、运行管理等方面的问题并提出建议,进一步完善河道生态治理理论和工程经验,为今后河道生态治理提供借鉴。

Based on the analysis of design project and engineering operation management on river ecological management in the plain-urban section of Yongding River in Beijing,experiences were summarized including putting flood management on top priority and highlighting the comprehensive functions of urban river;proposing ecological restoration standards of Yongding River to guide design;providing the suitable measures to local,water resource conservation,and environmental concept of integration in design and construction; and using infiltration reduction techniques comprehensively. Furthermore,combining analysis of engineering operation management with on-site survey,issues on technical standards of ecological management,types of ecological protection to river bank,water security and engineering operation management,were summarized and suggestions were proposed. This study will improve the theory and engineering experience on river ecological management,and provide reference for future ecological management project of river.