The effects of different soil water gradient on photosynthetic characteristics and water consumption characteristics of Camellia oleifera Abel.seedlings were studied through pot and soil water controlling experiment.The net photosynthetic rate(P_n),stomatal conductance(G_s),transpiration rate(T_r),intercellular CO_2 concentration(C_i)and water use efficiency(WUE)were measured by the Li-6400 portable photosynthesis system,and the water consumption amount(W_c)and water consumption rate(W_(cr))were measured by...