A Simple Heuristic Model of Nutrient Cycling in an Estuary

dc.acquisition-srcGBIC staff review of publicationen_US
dc.call-noAcc.#7087en_US
dc.contract-noen_US
dc.contributor.authorKimmerer,W.J.en_US
dc.contributor.authorSmith, S.V.en_US
dc.contributor.authorHollibaugh, J.T.en_US
dc.contributor.otherEstuarine, Coastal and Shelf Scienceen_US
dc.date.accessioned2010-02-15T17:27:52Z
dc.date.available2010-02-15T17:27:52Z
dc.date.issued1993en_US
dc.degreeen_US
dc.descriptionp. 145-159en_US
dc.description-otheren_US
dc.description.abstractThree decades of discussion and study have not resolved the apparent discrepancy between N-limitation of primary production and the ability of marine ecosystems to fix N. We use a simple model as a heuristic tool to examine controls on nutrient cycling in a shallow estuary, with Tomales Bay, California as the prototype. The modes is a steady-state, one-box model with inputs and losses of nutrients and organic matter, and terms representing N-fixation and dentrification. The physical description of the system is deliberately kept simple to permit a focus on the key biogeochemical reactions. Growth of autotrophs in the model can be limited either by dissolved inorganic nitrogen (DIN) or dissolved inorganic phosphorus (DIP). Nitrogen-fixation is controlled by the availability of DIP or limited by excess amounts of DIN. Model results demonstrate that, for a system with a long residence time, autotroph biomass and total organic matter are controlled primarily by the rate of delivery of P to the system, either as DIP or in organic matter.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeTexas Coasten_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/24987
dc.latitudeen_US
dc.locationGBIC Collectionen_US
dc.longitudeen_US
dc.notesen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries7087.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectestuarine environmenten_US
dc.subjectchemical oceanographyen_US
dc.subjectlimiting factorsen_US
dc.subjectnutrientsen_US
dc.subjectnutrient cyclesen_US
dc.titleA Simple Heuristic Model of Nutrient Cycling in an Estuaryen_US
dc.typeArticleen_US
dc.universityen_US
dc.vol-issue37(2)en_US

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