Impact of temperature on the biogenic volatile organic compound (BVOC) emissions in China: A review

Temperature has a substantial impact on the emission of biogenic volatile organic compounds (BVOCs). Moderate warm temperatures, e.g., 30-40 °C, could boost plant metabolism, increasing BVOC emissions. Against the backdrop of global warming, plants emit more BVOCs to cope with thermal stress, leading to elevated concentrations of tropospheric ozone (O₃) and secondary organic aerosols (SOA). In recent years, a considerable body of research has explored the interaction between tree species and BVOCs under the influence of various environmental factors. Although many studies have examined explored the temperature dependence of BVOC emissions in the past, few studies have conducted a comprehensive and in-depth investigation into the impacts of temperature. This review summarizes the relevant studies on BVOCs in the past decade, including the main biosynthetic pathways, emission observation techniques and emission inventories, as well as how temperature affects isoprene and monoterpene emission rates and the formation of O₃ and SOA. Our work offers a theoretical foundation and guidance for future efforts to advance the comprehension of BVOC emission characteristics and develop strategies to mitigate secondary pollution.