Festuca rubra on the first axis of DCA ordination for samples. (3) Four groups had their distributing center and area, and the distribution of species decided the meadow types.

• (3)4个生态种组在DCA排序图中都有自己的分布中心和分布区域，植物种的分布格局在很大程度上决定着草甸类型的分布格局。