西咸新区生物滞留设施地被植物种植设计

Planting Design of Ground Covers for Bioretention Facilities in Xixian New Area

西咸新区作为西北半干旱半湿润地区首批海绵城市建设试点,其绿化建设具有典型的代表性。生物滞留设施作为低影响开发建设中常用的生态设施,与其相配套的植物种植设计一直以来是国内外研究的热点领域,参照西北地区自然群落原型,构建地被植物群落可以实现植物景观适旱耐积水并具有中长期稳定性。文章在阐述国内外研究现状的基础上,提出了生物滞留设施地被植物种植设计策略,并以康定和园及秦皇大道生物滞留设施的实践项目为例,探讨其地被植物配置优化模式,以及提出相关建议,旨在为城市绿地低影响开发建设提供理论基础。

Xixian New Area is among the first batch of sponge city pilot area in the northwest semi-arid and semi-humid region,and its greening improvement is typically representative.Bioretention facility is a common ecological facility adopted in the low impact development,and the planting design of greening plants for bioretention facilities have always been a hot research field.With reference to the natural plant community in the northwest region,the ground cover plant community is established to improve the drought and flooding resistance and long-term stability of plant landscapes.Based on the current research at home and abroad,the paper proposes the planting design strategy of ground covers for bioretention facilities.Taking Kangdingheyuan and Qinhuang Avenue bioretention facilities project as a case study,the paper concludes the optimization models of ground cover plant allocation and comes up with suggestions,with the aim at providing theoretical basis for the low impact development of urban green spaces.