NTRS - NASA Technical Reports Server

Back to Results
Interactions of the marine phosphorus and carbon cyclesAbout 30 to 50% of the fluvial P-input to the oceans derives from release of reactive-P from particles during their passage through estuaries. The input is matched by P-removal into three approximately equivalent sink: (1) burial in phosphorites on productive shelves; (2) burial with (org) in the deep-sea; and (3) burial with biogenic calcite in the deep-sea. The P/C burial ratio in these three phases is very different: P/C (org) approximately .004; P/C (CaCO3) approximately .001; and P/C (PHOS) approximately .03. The removal mechanisms are all coupled to primary production in the surface ocean, but the details of the feedback mechanisms controlling the steady-state nutrient and carbon budgets in the sea are doscured by lack of knowledge of how the P/C ratios in the sinks adjust, and how shifts in oceanic nutrients affect oceanic ecology and the relative fraction of biogenic CaCO3 and (org) production.
Document ID
Document Type
Froelich, P. N.
(Florida State Univ. Tallahassee, FL, United States)
Date Acquired
August 12, 2013
Publication Date
January 15, 1984
Publication Information
Publication: JPL The interaction of Global Biochemical Cycles
Subject Category
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available