Figure 2. Warming-induced changes in (A) leaf out, (B) leaf
senescence and (C) growing season length for each species. Asterisks
indicate significant differences at P < 0.05 (*),P < 0.01 (**) and P < 0.001 (***).
Values are mean ± standard errors. Sk: Stipa krylovii . Pc:Poa crymophila . Kc: Koeleria cristata . Mr: Medicago
ruthenica . Kh: Kobresia humilis . As: Artemisia scoparia .
Ha: Heteropappus altaicus . Gs: Gentiana squarrosa .