Figure S5 Correlation analysis of flowering phenology of six species and environmental factors. Af stands for A. frigida , Kp stands forK. prostrata , Sb stands for S. breviflora , Cs stands forC. songorica , At stands for A. tenuissimum , Ca stands forC. ammannii . ST1 stands for 0-10cm soil temperature, ST2 stands for 10-20cm soil temperature, ST3 stands for 20-30cm soil temperature. SM1 stands for 0-10cm soil moisture, SM2 stands for 10-20cm soil moisture, SM3 stands for 20-30cm soil moisture. IV is the plant dominance, such Sb-IV stands for the dominance of S. breviflora . * and ** are P < 0.05 and P < 0.01, respectively.