Dew formation and aboveground biomass at the species level
In total, we measured dew formation at the species level for 10 species. These ten species accounted for approximately 72% of the total community biomass (Liu et al. 2018).We divided these plant species into three functional groups, i.e., grasses (Stipa aliena, Elymus nutans and Helictotrichon tibeticum), forbs (Tibetia himalaica, Oxytropis ochrocephala, Medicago ruthenica, Gentiana straminea and Saussurea pulchra), and sedges (Kobresia humilis and Carex przewalskii) and separately analyzed their dew formation responses to warming. The aboveground biomass was separated into grasses, sedges, and forbs, harvested and oven-dried at 65 °C to a constant weight. Plant height was measured using five selected individuals per species in each plot before dew formation measurement during the experimental periods.