Results of linear mixed-effects model analysis (F-values, degree of freedom and significance) testing the effects of growing seasons, habitats, soil layers and their interactions on <i>δ</i>D, <i>δ</i>¹⁸O values of soil and plant leaves of <i><i>C. gigantea</i></i>. Data were performed on log_e-transformed values. Significant level; *<i><i>P</i></i> < 0.05; **<i><i>P</i></i> < 0.01; ***<i><i>P</i></i> < 0.001.

Results of linear mixed-effects model analysis (F-values, degree of freedom and significance) testing the effects of growing seasons, habitats, soil layers and their interactions on δD, δ18O values of soil and plant leaves of C. gigantea. Data were performed on loge-transformed values. Significant level; *P < 0.05; **P < 0.01; ***P < 0.001.