Both the community dissimilarity index and Cody index peaked at 1400-1500 m, 2100-2200 m, and 2600-2700 m, corresponding to the transitional zones of shrubs to forests, broad forests to coniferous forests, and forests to subalpine meadows, respectively.

• 海拔 14 0 0 - 15 0 0m处出现的Cody指数极大值反映了灌丛群落向森林群落的变化 ,而Cody指数在海拔 2 10 0 - 2 2 0 0m的极大值反映了阔叶林和针叶林之间的过渡。