Analysis of applicability of Granier’s original equation for calculating the stem sap flux density—Take Populus tomentosa as an example
ZHAO Xiao-Ning, TIAN Xiao-Nan, LI Xin, LI Guang-De, GUO You-Zheng, JIA Li-Ming, DUAN Jie, XI Ben-Ye
Chin J Plant Ecol . 2023, (3): 404 -417 .  DOI: 10.17521/cjpe.2022.0321