Changes in precipitation mediate the inhibitory effects of reduced UV-B radiation on the litter decomposition of desert plants in arid regions

The decomposition of litter and nutrient cycling in terrestrial ecosystems are significantly influenced by ultraviolet-B (UV-B) radiation. The direction and magnitude of this effect are largely regulated by the dry and wet conditions of the environment. The impact of UV-B radiation on the decomposition process of different litter types in arid desert regions under future precipitation changes remains poorly understood. A field experiment was conducted to investigate the impact of precipitation changes (natural precipitation, a 30