Response of Some Tree and Shrub Speices Leaves on Light and CO₂

Determinations during July and August of 2015 and analysis were conducted on light and CO2 response of leaves of 6 tree and 7 shrubspecies as greening plant in Wenzhou city, Zhejiang province. Results showed that light saturation point (LSP) of arbor species was ordered byCinnamomum camphora, Eucalyptus robusta, Ficus concinna var. concinna, Liriodendron chinense, Michelia alba and Osmanthus fragrans, andlight compensation point ordered by O. fragrans, E. robusta, L. chinense, F. concinna var. concinna, C. camphora and M. alba. C. camphora, F.concinna var. concinna and E. robusta had relative higher the maximum carboxylation rate, but lower saturated intercellular ₂ concentration andcompensation point of intercellular ₂ concentration .Among tested shrub species, L. chinense var. rubrum had the highest LSP, the maximumphotosynthetic rate, the maximum carboxylation rate initial carboxylation efficiendy. Experiment resulted that C. camphora, F. concinna var.concinna, E. robusta and L. chinense var. rubrum were proposed to be planted in Wenzhou.