The results show that 59 types of plant communities in the alpine tundra of Mt.Changbai were basically arranged along a soil-water gradient of the second axis in DCA ordination and could be classified into 12 groups by TWINSPAN.

• 研究结果表明:DCA的第2轴与长白山高山冻原59个植物群落类型的土壤水分梯度紧密相关,TWINSPAN将长白山高山冻原59个植物群落分为12组。