Study on the water physio-ecological characteristics of Populus beijingensis
北京杨水分生理生态特性研究

The study results on the water physio ecological characteristics of Populus beijingensis showed that:the transpiration rate ( Tr ) of Populus beijingensis was 598.8mg/gld·h in growing season.The diurnal change of Tr was parabolic shape.The value of Tr was lower in the morning and at nightfall,and higher at noon.The diurnal change in Tr was significantly correlated with light intensity ( L ),products ( L·T ) of L and temperature ( T ) and the quotient ( L/H ) of L a...