Environmental Change Is Reshaping the Temperature Sensitivity of Sesquiterpene Emissions and Their Atmospheric Impacts

作者：Efstratios Bourtsoukidis, Alex Guenther, Hui Wang, Theo Economou, Georgia Lazoglou, Aliki Christodoulou, T. Christoudias, A. C. Nölscher, Ana María Yáñez‐Serrano, Josep Peñuelas · 发表于：Global Change Biology · 年份：2025 · DOI：10.1111/gcb.70258 · 被引用次数：7 · 研究领域：Atmospheric chemistry and aerosols、Plant responses to elevated CO2、Atmospheric Ozone and Climate

ABSTRACT Air temperature is a critical regulator of ecosystem functions, including the release of biogenic volatile organic compounds (BVOCs) that mediate biosphere‐atmosphere interactions. Among these, sesquiterpenes (SQTs) stand out for their dual role as ecologically significant compounds and highly reactive atmospheric constituents. Despite the inherently complex relationship between temperature and biogenic emissions, global emission estimates rely on simplistic parameterizations, assuming a fixed exponential response across all ecosystems and environmental conditions. Here, we synthesize two decades (1997–2019) of SQT emission studies, uncovering significant variability in temperature responses and basal emission rates driven by plant functional types (PFTs) and diverse environmental co‐factors. When PFT‐dependent parameterizations are integrated into emission‐chemistry simulations, the results reveal sensitive feedbacks on atmospheric processes, including ground‐level ozone (O 3 ) production and secondary organic aerosol (SOA) formation. Surprisingly, we identify a statistically significant decline in SQT temperature responses over time, suggesting that evolving environmental changes are reshaping the fundamental relationship between temperature and SQT emissions. This meta‐analysis highlights the temperature sensitivity of sesquiterpenes (β SQT ) as a key parameter at the interface of the biosphere, abiotic and biotic environmental change, and atmospheric processes, w...