Arctic browning: Impacts of extreme climatic events on heathland ecosystem CO₂ fluxes.

ABSTRACT: Extreme climatic events are among the drivers of recent declines in plant biomass and productivity observed across Arctic ecosystems, known as "Arctic browning." These events can cause landscape-scale vegetation damage and so are likely to have major impacts on ecosystem CO₂ balance. However, there is little understanding of the impacts on CO₂ fluxes, especially across the growing season. Furthermore, while widespread shoot mortality is commonly observed with browning events, recent observations show that shoot stress responses are also common, and manifest as high levels of persistent anthocyanin pigmentation. Whether or how this response impacts ecosystem CO₂ fluxes is not known. To address these research needs, a growing season assessment of browning imp

SUBMITTER: Treharne R 

PROVIDER: S-EPMC7379734 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature