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December 1, 2025Global Biogeochemical Cycles0 citationsOpen Access

Assessing Organic Carbon Fluxes in Patagonia's River-Fjord System Over Time

Organic Carbon Fluxes on Seasonal to Decennial Timescales in Patagonia's Largest River‐Fjord System

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Authors

SHSophie HageSBSébastien BertrandBABenjamin Amann

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Overview

Observational analysis reveals seasonal variability in organic carbon fluxes in Patagonia, indicating significant terrestrial OC burial.

Key Points

  • Organic carbon fluxes peak in summer at 106 g OC/m2/yr, compared to winter levels of 53 g OC/m2/yr due to meltwater.
  • Sediment trap OC fluxes are comparable to sediment core values, suggesting quick burial rates in the Baker fjord system.
  • Analysis of sediment samples reveals the predominant origin of organic carbon is terrestrial, influencing carbon sequestration strategies.
  • Utilizing fjord deltas in carbon budgeting highlights their role in boosting projections of terrestrial organic carbon in marine sediments.
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Cite This Study

Hage et al. (2025) studied this question.

synapsesocial.com/papers/69402a7e2d562116f290228fhttps://doi.org/10.1029/2024gb008427
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Organic carbon burial and sediment accumulation in the fjords of South Georgia, sub-Antarctic2026
  2. 2Burial of Organic Carbon in Swedish Fjord Sediments: Highlighting the Importance of Sediment Accumulation Rate in Relation to Fjord Redox Conditions2024 · 8 citations
  3. 3From Fjord to Shelf: Drivers of Organic Carbon Transformation and Storage Across Connected Marine Sedimentary Systems2026
  4. 4Spatial heterogeneity of sedimentary organic carbon in fjords around Stavanger, Norway – implications for upscaling2026
  5. 5Sedimentary organic carbon dynamics in a glaciated Arctic fjord: tracing contributions of terrestrial and marine sources in the context of Atlantification over recent centuries2025