https://www.selleckchem.com/products/ademetionine.html Aromatic compounds mainly reacted with OH, and their EFs decreased 59.1% on average. Alkanes were much less reactive, and their EFs only decreased an average of 29.8% after the oxidation processes. Considerable SOAs formation was observed in the fine particulate matter (PM2.5) filter samples collected after the oxidation of isoprene, benzene and toluene. The moderate to strong correlations between isoprene and isoprene-derived SOAs, between benzene and toluene with nitrophenols, and between toluene and aromatic acids demonstrate that the VOCs were degraded in the reactions with oxidative radicals, producing active contributors to SOAs formations. Previous studies have demonstrated that plant diversity not only plays an important role in maintaining ecosystem functions but can also mediate the impact of climate change on ecosystem functions. However, the relative importance of multiple aspects of diversity at different scales remains unclear. In this study, we investigated species, functional, and phylogenetic aspects of diversity at α and β scales, and measured eight soil functions (aboveground productivity, soil organic carbon, total soil nitrogen, total soil phosphorus, soil available nitrogen, soil available phosphorus, soil carbon-nitrogen ratio, and soil nitrogen-phosphorus ratio) to comprehensively assess the relationship between multiple aspects and scales of plant diversity and soil multifunctionality along an aridity gradient across the grasslands of Inner Mongolia. Diversity at α and β scales explained soil multifunctionality synergistically. Functional diversity explained most of the soil multifunctionality, while phylogenetic diversity explained the least. Aridity had both direct effects on soil multifunctionality, and indirect effects mediated mainly by functional α and β diversity. These findings indicate that in addition to α diversity, β diversity also played an important role in maintaining soil