By taking the two-year-old Phoebe bournei young seedlings from different four families as the tested materials, the differences of photosynthetic characteristics and ecological benefits between the families were investigated. The results indicate that the EAQY of P bournei was high, while Amax was low, the ability to use low light was strong; The daily variation of net photosynthetic rate was a twin peaks curve, and the daily variation of transpiration rate was a single-peak curve. By taking into account for the parameters, P. bournei families ...
