我国海绵设施中植物的作用与选择研究进展

Recent Advances on the Function and Selection of Plants in Sponge Facility in China

海绵城市作为一种新的雨洪管理理念,能够有效控制径流量以及径流污染,其中植物作为海绵设施的主要组成部分,发挥了重要的作用。植物通过地上枝干与茎叶以及地下根系对海绵设施的雨水滞留、渗透与削减能力造成了影响,还可通过自身对污染物的吸收作用以及植物根系与介质和微生物之间的相互作用影响海绵设施的水质净化能力。综述了植物对海绵设施运行效果的影响及作用机制,同时对各类海绵设施中植物的选择与设计进行了归纳总结,从海绵设施种类、海绵设施运行效果、当地环境条件以及景观效益等方面阐述了海绵设施中植物选择配置的原则和意义,最后提出了海绵设施中植物作用与设计存在的挑战以及未来研究方向。

Sponge city,represent a novel concept in stormwater management,effectively mitigating both runoff flow and pollution.As the main component of sponge facilities,plants play a vital role in sponge city.Plants influence the stormwater retention,infiltration and reduction capacity of the sponge facility through their aboveground branches,stems,leaves and underground root system.In addition,plants contribute to the stormwater purification within sponge facilities by the absorption and the interaction between plant roots,media and microorganisms.This review examines the impact and mechanisms of plants on the operational effectiveness of the sponge facility.Meanwhile,it summarizes the criteria and design considerations for selecting plants across various types of the sponge facility.The principle and significance of plant selection and design in sponge facilities were summarized,considering the types of the sponge facility,their operational requirements,local environmental conditions and landscape benefits.Additionally,the challenges and future research directions concerning plant functionality and design in the sponge facility were discussed.