Thus, the availability of P in marine systems can strongly influence the marine carbon cycle and the sequestration of atmospheric carbon dioxide.
The coupling of Phanerozoic continental weathering and marine ...
Apr 2, 2020 · We propose an increase of P input would elevate surface ocean productivity, which in turn enhances marine iron redox cycle. Active Fe redox cycle favors the scavenging of seawater P through...
Active fe redox cycle favors the scavenging of seawater p through feooH absorption and authigenic phosphate formation in sediments, and accordingly reduces the bioavailability of seawater...
Frontiers | Evidence for Coupling of the Carbon and Phosphorus ...
Feb 4, 2018 · These data support the hypothesis of close coupling of the carbon and phosphorus biogeochemical cycles in freshwater aquatic microbial communities and provides a quantitative estimate of the likely gain in phosphorus remineralization that can occur due to …
Redox Stabilization of the Atmosphere and Oceans by Phosphorus …
Jan 26, 1996 · Mass-balance calculations using a coupled model of the biogeochemical cycles of carbon, phosphorus, oxygen, and iron indicate that the redox dependence of phosphorus burial in the oceans provides a powerful forcing mechanism for balancing production and consumption of atmospheric oxygen over geologic time.
Global patterns and predictors of C:N:P in marine ecosystems
Nov 7, 2022 · Oceanic nutrient cycles are coupled, yet carbon-nitrogen-phosphorus (C:N:P) stoichiometry in marine ecosystems is variable through space and time, with no clear consensus on the controls on...
Microbial mechanisms coupling carbon and phosphorus cycles …
Feb 1, 2014 · The coastal northern Adriatic Sea receives pulsed inputs of riverine nutrients, causing phytoplankton blooms and seasonally sustained dissolved organic carbon (DOC) accumulation—hypothesized to cause episodes of massive mucilage. The underlying mechanisms regulating P and C cycles and their coupling are unclear.
The marine phosphorus cycle - Frontiers
In the vast oceans of planet Earth, the primary source of P is via riverine transport of the byproducts of rock weathering. Following this source term, the marine phosphorus (P) cycle is characterized by a microbially mediated cycling of P between …
The coupling of Phanerozoic continental weathering and marine ...
Apr 2, 2020 · We propose an increase of P input would elevate surface ocean productivity, which in turn enhances marine iron redox cycle. Active Fe redox cycle favors the scavenging of seawater P through FeOOH absorption and authigenic phosphate formation in sediments, and accordingly reduces the bioavailability of seawater P.
Our model simulations of the global ocean carbon cycle under global warming and glacial conditions suggest that phytoplankton physiology and commu-nity composition control global C:N:P export.