Abstract: Against the background of sponge-city construction and the transformation of old residential areas, sponge transformation in residential areas has become an important measure to improve residents' lives. As an important element of sponge facilities, green spaces represent the multiple functions of ecology, beautification and water storage. How to select and match suitable plants for sponges is central to sponge construction. Firstly, with an aim to optimize plant growth, plant species are selected according to the climate zone of the project. Secondly, plants with habits that align with the characteristics of different sponge facilities are selected to improve rainwater utilization and ecological benefits. Finally, plants that match with the morphological features of different sites are chosen to create plant landscapes in accordance with local atmospheres. In the current study, based on the abovementioned three steps, plant species and the combinations that are applicable to sponge projects in existing residential areas were screened. These plants can help designers form high-efficiency sponge-plant landscapes that reflect and adapt to local characteristics as well as minimize maintenance costs under limited planting conditions.

Key words: residential area, sponge transformation, plant selection, plant landscape, site type

摘要： 在全国海绵城市建设和老旧小区改造大面积开展的形势下，针对既有住区现状特点进行海绵化改造，从植物在海绵建设中发挥重要生态和景观作用的角度出发，探讨如何进行植物应用和选择。首先按照项目所在地气候区进行植物品种选择，使植物生长状态最优；其次选择习性与不同海绵设施特点相匹配的植物，提高水资源的利用和经济效益；最后根据不同场所的特点选择形态特征与之匹配的植物进行搭配，营造出和场地氛围融合的植物景观。通过以上三个步骤逐一筛选，得出适用于既有住区各海绵项目的植物品种及搭配模式，帮助设计者在受限的种植条件下，形成体现地域特色、适宜场地特征且高效低维护的海绵植物景观。

关键词: 既有住区, 海绵化改造, 植物选择, 植物景观, 场地类型