Respectively, the C0_(2) compensation point of all leaves is about 50 n mol-mol-1 Many biological and ecological factors take account for the net photosynthesis, such as Cond, Ci, Vpdl, Tair, Tleaf, RHS and PARi.

• 影响樟树叶片净光合速率的因素有气孔导度(Cond)、胞间CO_2浓度(Ci)、叶面水分亏缺(Vpdl)、气温(Tair)、叶面温度(Tleaf)、相对湿度(RH)和光合有效辐射(PARi)等生理生态因子。