西安国际社区沣河堤岸和湿地生态策略研究

Study of the Ecological Strategy of Xi'an International Community Feng River Embankment and Wetland

湿地是一个循环的、动态的生态系统,其内部的各个生物链相互依存。要构筑起一个完善的、可持续的湿地环境,恢复湿地的原貌,需要充分分析、研究场地具体条件,利用自然机制和人造系统的各自优势,提高城市的防御能力,将城市景观湿地营造成人与自然和谐共存的栖息地。着重探讨沣河堤岸和湿地的生态修复策略,针对场地现状提出了3种驳岸修复类型,砌石嵌草型驳岸、抛石丁坝型驳岸和梢工型驳岸,并对堤岸进行了无堤化整治。在沣河河漫滩的生态修复过程中营建了多种生态湿地类型:垂直流湿地、间歇流湿地、雨水花园、自由表面流湿地、生态浮岛湿地。

Wetland is a cyclic and dynamic ecosystem, and the internal food chains are interdependent. To build a sound, sustainable wetland environment, and restore the original appearance wetland, it need to fully analyze and study specific site conditions, make use of their respective advantages of natural mechanisms and man-made systems, improve the city＇s defense ability, and create the urban landscape wetland into a habitat for the harmonious coexistence of human and nature, This case focuses on the ecological restoration strategies of Feng River embankment and wetland, and presents three revetment types based on the site conditions --stoned revetment with grass, rock-dropping embankment, and pin-type revetment, and the riverbanks are renovated in non- embankment style. A variety of ecological wetlands are built in the process of the ecological restoration of Feng River floodplain： vertical flow wetland, intermittent flow wetland, rain garden, free-surface flow wetland, and ecological floating island wetland.