Radiocarbon Constraints On Carbon Dynamics In River Basins ...
Constraining inputs and processes that influence organic carbon (OC) storage and export in fluvial systems is crucial for understanding the fate of carbon during its transfer from the terrestrial biosphere to the marine sedimentary sink. However, given the heterogeneous and dynamic nature of carbon,...
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| Format: | Doctoral or Postdoctoral Thesis |
| Language: | English |
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ETH Zurich
2020
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| Online Access: | https://dx.doi.org/10.3929/ethz-b-000473295 http://hdl.handle.net/20.500.11850/473295 |
| Summary: | Constraining inputs and processes that influence organic carbon (OC) storage and export in fluvial systems is crucial for understanding the fate of carbon during its transfer from the terrestrial biosphere to the marine sedimentary sink. However, given the heterogeneous and dynamic nature of carbon, in-depth knowledge of spatial and temporal scales over which carbon cycles through river systems is required. Pathways and timescales of carbon turnover and transport are known to vary with environmental conditions (temperature, humidity, topography etc.; e.g., Carvalhais et al., 2014; Galy et al., 2015) and are sensitive to anthropogenic disturbances (e.g., Butman et al., 2015; Grill et al., 2019; Raymond et al., 2008; Regnier et al., 2013). However, the relative importance of these factors for different types of fluvial systems remains the subject of debate (e.g., Marwick et al., 2015) and much work needs to be done to develop a comprehensive understanding of underlying processes and robust predictive ... |
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