Urbanisation alters the natural hydromorphology of streams, affecting aquatic communities and ecological quality. Increasing efforts have been put into the rehabilitation of urban streams due to their importance for urban sustainability. Despite these efforts, many projects fail to achieve the improvement of aquatic communities. This study aims to provide specific recommendations to enhance the biological rehabilitation of urban streams by reviewing: (i) the impacts of urbanisation and climate change on urban stream hydrology, (ii) the responses of invertebrate assemblages to alterations in the hydrology and morphology of streams, and (iii) the hydromorphological rehabilitation measures applied to streams and their effect on invertebrate communities. This review found that commonly employed measures of habitat heterogeneity enhancement (such as the addition of meanders, boulders, and artificial riffles) are not enough to improve invertebrate communities. On the other hand, the most effective measures are those leading to the re-establishment of natural hydrological patterns and good water quality. Ultimately, an integrated ecohydrological approach that considers the entire watershed and its interactions between ecosystems and anthropological activities is the key to managing and rehabilitating urban streams.

中文翻译：

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如何提高城市河流的生物质量？回顾水形态学改变和康复措施对底栖无脊椎动物的影响

城市化改变了溪流的自然水文形态，影响了水生群落和生态质量。由于城市河流对城市可持续发展的重要性，已经加大了对城市河流修复的努力。尽管做出了这些努力，但许多项目未能实现水生群落的改善。本研究旨在通过审查以下方面提供具体建议，以加强城市河流的生物恢复：(i) 城市化和气候变化对城市河流水文的影响，(ii) 无脊椎动物群落对河流水文和形态变化的反应(iii) 适用于溪流的水文形态恢复措施及其对无脊椎动物群落的影响。该审查发现，常用的栖息地异质性增强措施（例如添加曲折、巨石和人工浅滩）不足以改善无脊椎动物群落。另一方面，最有效的措施是那些导致重新建立​​自然水文格局和良好水质的措施。最终，考虑整个流域及其生态系统与人类活动之间相互作用的综合生态水文方法是管理和恢复城市河流的关键。