highly significantP < 0.01
Moreover, Castanopsis eyrei showed highly significant positive correlations with all diversity indices (P < 0.01), with correlation coefficients of 0.401, 0.438, 0.443, and 0.425, respectively.
Moreover, Castanopsis eyrei showed highly significant positive correlations with all diversity indices (P < 0.01), with correlation coefficients of 0.401, 0.438, 0.443, and 0.425, respectively.
In the tree layer, none of the diversity indices showed significant linear or unimodal relationships with elevation (P > 0.05), although the Margalef index exhibited a decreasing trend.