山杏叶片光合生理参数对土壤水分和光照强度的阈值效应
夏江宝, 张光灿, 孙景宽, 刘霞

Threshold effects of photosynthetic and physiological parameters in Prunus sibirica to soil moisture and light intensity
XIA Jiang-Bao, ZHANG Guang-Can, SUN Jing-Kuan, LIU Xia
图2 不同土壤水分条件下山杏叶片蒸腾速率的光响应(平均值±标准误差)。
Fig. 2 Light responses of transpiration rate (Tr) of Prunus sibirica leaf under different soil moisture conditions (mean ± SE). PAR, photosynthetically active radiation.