采用样方法对北京汉石桥湿地自然保护区植物种类和湿地植被类型进行调查。经鉴定有维管束植物(包含栽培与归化植物)75科184属280种(未包括变种、变型),其中匍匐委陵菜(Potentilla reptans)为北京市新纪录种,长芒苋(Amaranthus palmeri)为恶性入侵杂草。湿地植被2个植被型组、4个植被型和29个群系类型。菰-芦苇群系和黑三棱群系的Simpson多样性指数、Shannon-Wiener多样性指数明显高于其他群系。

The plant species and wetland vegetation types of Health Bridge Wetland Nature Reserve in Beijing were investigated by sampling method. The survey found 280 species (excluding varieties and forms) belonging to 184 genera and 75 families of vascular plants (including cultivated and naturalized plants),of which Potentilla reptans was a new record species in Beijing,and Amaranthus palmeri was a malignant invasive weed. Wetland vegetation consisted of 2 vegetation type groups,4 vegetation types and 29 formation types. Based on the diversity analysis of the main plant formations in the study area,it was found that the Simpson diversity index and Shannon Wiener diversity index of Zizania australis formation and heisanleng formation were significantly higher than those of other formations.