Fig. 4
Histogram of the interpretation rate of traits at the species level (a-c) and community level (d-f) on each axis. The pictures in the first column (a-c) show the interpretation rate of each axis trait at the species level. The pictures in the second column (d-f) show the interpretation rate of each axis trait at the community level. Pictures (a, d) in the first row are the results of the first axis. The images (b, e) in the second row are the results of the second axis. Pictures (c, f) in the third row are the results of the third axis. The value of the red dotted line is 0.20, and more than 0.20 indicates that the contribution rate of the trait is high