Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/22376
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dc.contributor.authorVogt, Esther-
dc.contributor.authorBraban, Christine F-
dc.contributor.authorDragosits, Ulrike-
dc.contributor.authorDurand, Patrick-
dc.contributor.authorSutton, Mark A-
dc.contributor.authorTheobald, Mark R-
dc.contributor.authorRees, Robert M-
dc.contributor.authorMcDonald, Chris-
dc.contributor.authorMurray, Scott-
dc.contributor.authorBillett, Michael-
dc.date.accessioned2015-10-28T23:46:58Z-
dc.date.issued2015-01-01-
dc.identifier.urihttp://hdl.handle.net/1893/22376-
dc.description.abstractWe present annual downstream fluxes and spatial variation in concentrations of dissolved inorganic nitrogen (NH 4+and NO3−) and dissolved organic nitrogen (DON) in two adjacent Scottish catchments with contrasting land use (agricultural grassland vs. semi-natural moorland). Inter- and intra-catchment variation in N species and the relation to spatial differences in agricultural land use were studied by determining catchment N input through agricultural activities at the field scale and atmospheric inputs at a 25m grid resolution. The average agricultural N input of 52 kg N ha−1 yr−1 to the grassland catchment was more than 4 times higher than the input of 12 kg N ha−1 yr−1 to the moorland catchment, supplemented by 12.3 and 8.2 kg N ha−1 yr−1 through atmospheric deposition, respectively. The grassland catchment was associated with an annual downstream total dissolved nitrogen (TDN) flux of 14.4 kg N ha−1 yr−1, which was 66% higher than the flux of 8.7 kg ha−1 yr−1 from the moorland catchment. This difference was largely due to the NO3− flux being one order of magnitude higher in the grassland catchment. Dissolved organic N fluxes were similar for the two catchments (7.0 kg ha−1yr−1) with DON contributing 49% to the TDN flux in the grassland compared with 81% in the moorland catchment. The results highlight the importance of diffuse agricultural N inputs to stream NO3− concentrations and the importance of quantifying all the major aquatic N species for developing a better understanding of N transformations and transport in the atmosphere-soil-water system.en_UK
dc.language.isoen-
dc.publisherElsevier-
dc.relationVogt E, Braban CF, Dragosits U, Durand P, Sutton MA, Theobald MR, Rees RM, McDonald C, Murray S & Billett M (2015) Catchment land use effects on fluxes and concentrations of organic and inorganic nitrogen in streams, Agriculture, Ecosystems and Environment, 199, pp. 320-332.-
dc.rightsThe publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.-
dc.subjectNitrogenen_UK
dc.subjectOrganic nitrogenen_UK
dc.subjectStream exporten_UK
dc.subjectCatchment fluxen_UK
dc.subjectLand useen_UK
dc.titleCatchment land use effects on fluxes and concentrations of organic and inorganic nitrogen in streamsen_UK
dc.typeJournal Articleen_UK
dc.rights.embargodate2999-12-31T00:00:00Z-
dc.rights.embargoreasonThe publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.-
dc.identifier.doihttp://dx.doi.org/10.1016/j.agee.2014.10.010-
dc.citation.jtitleAgriculture, Ecosystems and Environment-
dc.citation.issn0167-8809-
dc.citation.volume199-
dc.citation.spage320-
dc.citation.epage332-
dc.citation.publicationstatusPublished-
dc.citation.peerreviewedRefereed-
dc.type.statusPublisher version (final published refereed version)-
dc.author.emailm.f.billett@stir.ac.uk-
dc.citation.date31/10/2014-
dc.contributor.affiliationCentre for Ecology & Hydrology (CEH)-
dc.contributor.affiliationCentre for Ecology & Hydrology (CEH)-
dc.contributor.affiliationCentre for Ecology & Hydrology (CEH)-
dc.contributor.affiliationInstitut National de la Recherche Agronomique-
dc.contributor.affiliationCentre for Ecology & Hydrology (CEH)-
dc.contributor.affiliationCentre for Ecology & Hydrology (CEH)-
dc.contributor.affiliationScotland's Rural College (SRUC)-
dc.contributor.affiliationScotland's Rural College (SRUC)-
dc.contributor.affiliationScotland's Rural College (SRUC)-
dc.contributor.affiliationBiological and Environmental Sciences-
dc.rights.embargoterms2999-12-31-
dc.rights.embargoliftdate2999-12-31-
dc.identifier.isi000348015400034-
Appears in Collections:Biological and Environmental Sciences Journal Articles

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