城市高层建筑、高架桥的建设 ,使得绿化植物生长的环境发生改变 ,诸如 ,照射到地面的光照强度减弱、空气污染等。要使适应于这一环境下生长的植物生长良好 ,有必要关注其光合状态[1,2 ] 。八角金盘、洒金珊瑚、洋常春藤、吉祥草和大吴风草是城市绿化中 ,尤其是高架桥下普遍种植 The construction of urban high-rise buildings and viaducts has changed the environment for the growth of green plants, such as weakened light intensity on the ground and air pollution. It is necessary to pay attention to the photosynthetic status of plants that adapt to the growth in this environment [1,2]. Anise gold plate, sprinkle gold coral, ocean ivy, auspicious grass and big Wu wind grass is urban greening, especially under the viaducts generally planted