The results showed that plant species of S. aliena grassland were mesoxerophtyes and cold-resistant mesophytes, dominant and sub-dominant species were S. aliena and Festuca ovina respectively.

• 结果表明，异针茅草地植被组成复杂，主要由中早生和耐寒中生植物组成，以异针茅为优势种，羊茅为亚优势种；