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以白蜡和五角枫幼苗为实验材料,利用CIRAS-2便携式光合系统测定白蜡和五角枫叶片的光合光响应过程,并用直角双曲线修正模型对两树种的光响应曲线进行拟合。结果表明:一用直角双曲线修正模型对白蜡、五角枫的光响应实测数据进行拟合,能得到较好的拟合效果;二对两树种光合光响应参数进行比较,发现白蜡比五角枫对环境表现出更强的适应性。
The photosynthetic light responses of white wax and Pealock maple leaf were measured by CIRAS-2 portable photosynthesis system using white wax and Pentagon maple seedlings as experimental material. The light response curves of the two species were fitted by rectangular hyperbolic model. The results showed that fitting the experimental data of light response of white wax and pentagonal maple by a rectangular hyperbola correction model could get good fitting results. Comparing the photosynthetic light response parameters of two tree species, Environment shows greater adaptability.