Radiocarbon signatures of carbon phases exported by Swiss rivers in the Anthropocene.

ABSTRACT: Lateral carbon transport through the land-to-ocean-aquatic-continuum (LOAC) represents a key component of the global carbon cycle. This LOAC involves complex processes, many of which are prone to anthropogenic perturbation, yet the influence of natural and human-induced drivers remains poorly constrained. This study examines the radiocarbon (¹⁴C) signatures of particulate and dissolved organic carbon (POC, DOC) and dissolved inorganic carbon (DIC) transported by Swiss rivers to assess controls on sources and cycling of carbon within their watersheds. Twenty-one rivers were selected and sampled during high-flow conditions in summer 2021, a year of exceptionally high rainfall. Δ¹⁴C values of POC range from -446‰ to -158‰, while corresponding ranges of Δ¹⁴C va

SUBMITTER: Rhyner TMY 

PROVIDER: S-EPMC10642794 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature