Stormwater quantity and quality control performance of bioretention systems: A literature review.

Bioretention systems, as one of the most widely used modern stormwater management tools, have outstanding performance in capturing runoff, mitigating peak flow, delaying outflow occur time, and improving effluent quality. We reviewed the research of hydrologic and water quality performance of bioretention systems around the world from different perspectives, including the structure and classification of bioretention systems, the mechanisms of runoff and pollutants regulation of bioretention systems, the hydrologic and water quality performances of bioretention systems, the runoff control and water purification evaluation models of bioretention systems, as well as the influencing factors of runoff control and water purification efficiency. We proposed that future research should focus on hydrologic and water quality of bioretention systems, e.g., optimization of design configurations, revealing the mechanisms of plant action, revealing the mechanisms of microbial action, the effects of climate change on hydrologic and water quality performance, watershed/regional scale hydrologic and water quality performance, purification effect and mechanisms of emerging pollutants, maintenance methods, as well as life-cycle assessment and cost analysis. This review would provide theoretical and technical supports for research, design, construction, and maintenance of bioretention systems.生物滞留系统作为应用最广泛的现代雨洪管理措施之一,能够有效减少地表径流量和峰值流量、延迟产流时间并改善径流水质。本文从生物滞留系统结构与分类、径流调控与水质净化机理和效益、径流调控与水质净化模拟模型、径流调控与水质净化效益影响因素等多个方面综述了国内外研究进展,并从生物滞留系统设计参数优化、基质和植物配置优化、植物和微生物作用机理、气候变化响应、流域/区域尺度径流与水质调控效应、特定和新型污染物净化机理、清理维护方法、全生命周期评价等方面提出了未来研究趋势和重点,以期为生物滞留系统径流与水质调控效应研究及生物滞留系统设计、建设和维护等提供理论和方法参考。.