The first axis of DCA indicated basically the diversification of soil water, while the second axis indicated basically the disturbance degree by people.

• 物种多样性指数的DCCA第一轴基本上反映了土壤水分的变化，第二轴基本上反映了人类对群落的干扰程度，物种多样性指数随土壤水分的增加而增大，随人类的干扰程度的增加而减小。