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dc.contributor.authorBowen, Jennifer L.
dc.contributor.authorRamstack, Joy M.
dc.contributor.authorMazzilli, S.
dc.contributor.authorValiela, Ivan
dc.date.accessioned2011-07-14T13:24:30Z
dc.date.available2011-07-14T13:24:30Z
dc.date.issued2007-07
dc.identifier.citationEcological Applications 17, Supple. (2007): S17–S30en_US
dc.identifier.urihttp://hdl.handle.net/1912/4679
dc.descriptionAuthor Posting. © Ecological Society of America, 2007. This article is posted here by permission of Ecological Society of America for personal use, not for redistribution. The definitive version was published in Ecological Applications 17, Supple. (2007): S17–S30, doi:10.1890/05-1460.1.en_US
dc.description.abstractEutrophication of estuaries is an increasing global concern that requires development of new tools to identify causes, quantify conditions, and propose management options that address this environmental problem. Since eutrophication is often associated with increased inputs of land-derived nitrogen to estuaries, we developed NLOAD, a user-friendly, web-based tool that brings together six different published models that predict nitrogen loading to estuaries and two models that estimate nitrogen concentrations in coastal waters. Here we describe each of the models, demonstrate how NLOAD is designed to function, and then use the models in NLOAD to predict nitrogen loads to Barnegat Bay, New Jersey (USA). The four models that we used to estimate nitrogen loads to Barnegat Bay, when adjusted, all had similar results that matched well with measured values and indicated that Barnegat Bay receives roughly 26 kg N·ha−1·yr−1. Atmospheric deposition was the dominant source of nitrogen to Barnegat Bay, followed by fertilizer nitrogen. Wastewater in Barnegat Bay is diverted to an offshore outfall and contributes no nitrogen to the system. The NLOAD tool has an additional feature that allows managers to assess the effectiveness of a variety of management options to reduce nitrogen loads. We demonstrate this feature of NLOAD through simulations in which fertilizer inputs to the Barnegat Bay watershed are reduced. Even modest cutbacks in the use of fertilizers on agricultural fields and lawns can be shown to reduce the amount of N entering Barnegat Bay.en_US
dc.description.sponsorshipSupport for the NLOAD tool came from the Cooperative Institute for Coastal and Estuarine Environmental Technologies (CICEET, CICEET-UNH grants #02-610 and #04-833). Additional funding was received from Environmental Defense.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherEcological Society of Americaen_US
dc.relation.urihttp://dx.doi.org/10.1890/05-1460.1
dc.subjectBarnegat Bayen_US
dc.subjectCoastal planningen_US
dc.subjectEutrophicationen_US
dc.subjectManagement toolen_US
dc.subjectNitrogen loadingen_US
dc.subjectNitrogen mitigationen_US
dc.subjectResource managersen_US
dc.subjectWatershed–estuary couplingen_US
dc.titleNLOAD : an interactive, web-based modeling tool for nitrogen management in estuariesen_US
dc.typeArticleen_US
dc.identifier.doi10.1890/05-1460.1


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