Quantitative analysis of subalpine meadows in Dongling Mountain

The meadows in Dongling Mountain are classified and ranked into 7 communities by TWINSPAN, DCA and CCA that are located at different elevation. The results of the classification and ordination reflect the good relationship between plant communities and environmental gradients that is verified at the twodimension ordination diagram by DCA. The axes of the ordination by DCA reflects the gradient changes in the elevation, the gradient and the number of garbage that altitude, water and heat conditions, the tourism disturbance on plant communities are the major changes in ecological factors. The results of CCA and DCA results are basically the same.