Grazing Significantly Increases N2O Emission Rates in Alpine Meadows of the Tibetan Plateau

Alpine meadows are robust nitrous oxide (N 2 O) sources that continually experience overgrazing on the Tibetan Plateau. However, mechanisms underlying N O fluxes poorly understood. The effects of grazing activity grassland emission rates, soil and plant characteristics were investigated using a meta-analysis approach. This study revealed effect size was 0.31 ± 0.08 rates ( p < 0.0001), increased by 36.27% than control. Light, moderate, high 34.62, 19.48, 62.16%, respectively. moderate significantly lower 0.05). pH significant 0.05), 6.51% compared with Both ammonia nitrate levels 12.24 8.60%, decreased total carbon, phosphorus, available phosphorus 14.4, 10.25, 10.15%, Grazing diversity richness, aboveground biomass 15.16, 23.7, 30.7% 0.01), respectively 0.01). Aboveground influenced emissions, explaining 13.36% variations. direct coefficient sizes −0.631 based structural equation model. Although diversity, is optimal for mitigating emissions