Asymmetric warming among elevations may homogenize plant α-diversity and aboveground net primary production of alpine grasslands

It is well known that asymmetric warming among elevations (i.e., magnitude increases with increasing elevation) will weaken the difference of air temperature elevations. However, it remains controversial on whether can homogenize plant α-diversity and above-ground net primary production (ANPP) in alpine regions. In present study, we conducted an experiment grasslands, Northern Tibet since 2010. There were four treatments, including a treatment under natural conditions at elevation 4,313 m (C4313), 4,513 (C4513), (W4513) 4,693 (W4693). We investigated ANPP, taxonomic α -diversity species richness, Shannon, Simpson Pielou) phylogenetic (mean nearest taxon distance, MNTD; diversity, PD) 2011–2019. no significant differences mean between C4313 W4513, or C4513 W4693 2011–2019, indicating eliminated Then found ANPP also elevations: (1) there Pielou MNTD (2) Shannon (3) Simpson, Pielou, PD 2019. Therefore, may aboveground least Tibet.