广州市立交桥和人行天桥绿化情况调查研究

A Study on the Current Greening Situation of Overpasses and Pedestrian Bridges in Guangzhou City

调查广州市一些具有代表性的立交桥、人行天桥的绿化情况,包括其现有绿化植物的种类、绿化效果、养护管理等方面.调查结果表明:立交桥、人行天桥的绿化植物主要有簕杜鹃、水鬼蕉、合果芋、鹅掌柴等.桥体绿化存在种类单一景观类似、绿化不完全及养护管理不到位等问题.建议桥体建设与绿化应同步进行;选择适合植物种类,丰富物种多样性;桥体绿化与周围街道绿化相结合;加强绿化的养护管理.

In this paper we investigated the current greening situation of some representative overpasses and pedestrian bridges in Guangzhou City. The survey includes existing plant species, greening effect, maintenance and management etc. The survey shows that the most common plants for bridge greening are Bougainvillea spectabilis, Hymenocallis spciosa, Syngoniurn podophyllurn, Schefflera octophylla etc. The existing problems for bridge greening are： less species, similar landscape, incomplete greening and poor maintenance and management. The following suggestions might help to cope with the problems. 1） Bridge construction should be carried out simultaneously with the greening. 2） Suitable plant species should be selected and species diversity be enriched. 3） Bridge greening should combine with the surrounding street greening. 4） The greening maintenance and management should be strengthened.