Effects of the length of plant growth and phenological phases on plant biomass
The length of the rapid growth phase was significantly (p< 0.05) negatively correlated with the intrinsic growth rate in four species (Fig. S7). The length of the vegetative growth period was significantly negatively correlated with the length of the generative growth period in four plant species (Fig. S7).
The plant biomass of Kobresia humilis was significantly negatively correlated with the length of the vegetative growth period but positively correlated with the length of the generative growth period. The plant biomass of Astragalus laxmannii was significantly negatively correlated with the length of the rapid growth period and positively correlated with the intrinsic growth rate. The plant biomass of Stipa purpurea and Artemisia scoparia was only significantly correlated with the length of the vegetative growth period (Table S2).