Temporal variability in dissolved organic matter composition export in streams.

ABSTRACT: Export of dissolved organic carbon (DOC) from freshwater systems has been the focus of many studies owing to its pivotal role in regulating global carbon fluxes and ecosystem function. Both the flux and composition of dissolved organic matter (DOM) are critical for understanding its ecological impact, as similar compositions can have vastly different consequences depending on the magnitude of input and hydrological context. However, very little data exists on the composition of DOM export fluxes to downstream ecosystems. Here we investigate the interaction of water temperature and discharge on DOC and DOM composition export fluxes in two streams draining contrasting watersheds (agriculture versus forested) in southern Ontario, Canada across seasons. Using Generalized Additive Models, we ob

SUBMITTER: Begum MS 

PROVIDER: S-EPMC12432052 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature