Increased Growth Temperatures Alter Arctic Plant Responses to Heat Wave and Drought.

ABSTRACT: Persistent warming and higher frequency of heat waves in the Arctic are causing alterations in Arctic vegetation and plant functionality, potentially redefining the role of the Arctic ecosystem. Vegetation influences atmospheric composition through exchanges of CO₂ and volatile organic compounds (VOCs), both processes exhibiting a strong response to temperature variations. However, our quantitative understanding of how increased temperatures interact with extreme weather events, namely heat waves and drought, to affect Arctic plant processes remains limited. Here, we measure phenology, photosynthesis, leaf fluorescence and VOC emissions from three widely distributed Arctic shrubs, Betula nana, Empetrum hermaphroditum and Salix spp., in response to future climate. We use state-of

SUBMITTER: Contreras-Serrano M 

PROVIDER: S-EPMC11998637 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature