城市河流生态系统修复刍议

Brief Discussion on Ecosystem Restoration of Urban River

解释了城市河流生态系统修复概念的内涵,认为其修复应是一种重建或改造活动,包括河流本体与社会经济两方面含义。提出了以城市河流生态系统健康为最终目标的多目标整体修复思想,界定了河流生态系统修复活动须遵循的原则。建立了“控源、截污、清淤、增容、拓岸、筑绿、造景、营栖”的城市河流生态系统修复模式,总结了修复的技术途径,包括河道外、河道内、栖息地与鱼道、物理形态结构修复4个方面。

The concept and its connotation of ecosystem restoration of urban rivers were defined. The restoration should be a kind of reconstruction or alternation, including river restoration and the optimization of a socio-economic system. The integrative multi-object restoration, aiming at ecosystem health of urban river was proposal, and the principles for ecosystem restoration of urban rivers were given. Furthermore, ecosystem restoration mode of urban rivers described as ＂pollution source controlling, discharge detaining, silt cleaning, capacity increasing, greening, bank widening, landscape constructing, habitat building＂ was established. Finally, restoration technologies, including channel restoration technology outside and inside rivers habitat and fishway restoration technology, physical form restoration technology were summarized.