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dc.contributor.authorHosang, Jürg-
dc.date.accessioned2018-05-25T08:29:13Z-
dc.date.available2018-05-25T08:29:13Z-
dc.date.issued1996-
dc.identifier.issn0885-6087de_CH
dc.identifier.issn1099-1085de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/6099-
dc.description.abstractAn experimental study was conducted to characterize the behaviour of nitrate in an agricultural field during winter. The experiment embraced measurements of the nitrate concentration profiles at 40 plots at the beginning and end of the experiment. Additionally, the nitrogen inputs through rainfall and fertilization were assessed throughout the experiment. To estimate the transport properties of the soil at the 40 plots, a bromide tracer experiment was carried out. The transport of this conservative tracer in the plots could be described as a convective dispersive process. To predict the nitrate concentration profile at the end of the experiment from the initial concentrations, convective dispersive transport was assumed along with zero‐order kinetics to describe nitrification. On plot scale, this simple model performed poorly. This was attributed mainly to the spatial heterogeneity of the fertilizer dosage. However, when the local model was scaled up to describe the field‐averaged behaviour of nitrate, the deviation of the model from the measurements was significantly smaller. From this, it can be concluded that in certain situations, simple models can provide adequate descriptions of processes which, though highly complex on the local scale, become accessible when averaged over larger areas.de_CH
dc.language.isoende_CH
dc.publisherWileyde_CH
dc.relation.ispartofHydrological Processesde_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectTransportde_CH
dc.subjectNitratede_CH
dc.subjectSoilde_CH
dc.subject.ddc630: Landwirtschaftde_CH
dc.titleBehavior of nitrate in a heterogeneous field soil : measurements and modeling on different spatial scalesde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitut für Datenanalyse und Prozessdesign (IDP)de_CH
dc.identifier.doi10.1002/(SICI)1099-1085(199609)10:9<1193::AID-HYP379>3.0.CO;2-Pde_CH
zhaw.funding.euNode_CH
zhaw.issue10de_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.end1208de_CH
zhaw.pages.start1193de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume1996de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
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Hosang, J. (1996). Behavior of nitrate in a heterogeneous field soil : measurements and modeling on different spatial scales. Hydrological Processes, 1996(10), 1193–1208. https://doi.org/10.1002/(SICI)1099-1085(199609)10:9<1193::AID-HYP379>3.0.CO;2-P
Hosang, J. (1996) ‘Behavior of nitrate in a heterogeneous field soil : measurements and modeling on different spatial scales’, Hydrological Processes, 1996(10), pp. 1193–1208. Available at: https://doi.org/10.1002/(SICI)1099-1085(199609)10:9<1193::AID-HYP379>3.0.CO;2-P.
J. Hosang, “Behavior of nitrate in a heterogeneous field soil : measurements and modeling on different spatial scales,” Hydrological Processes, vol. 1996, no. 10, pp. 1193–1208, 1996, doi: 10.1002/(SICI)1099-1085(199609)10:9<1193::AID-HYP379>3.0.CO;2-P.
HOSANG, Jürg, 1996. Behavior of nitrate in a heterogeneous field soil : measurements and modeling on different spatial scales. Hydrological Processes. 1996. Bd. 1996, Nr. 10, S. 1193–1208. DOI 10.1002/(SICI)1099-1085(199609)10:9<1193::AID-HYP379>3.0.CO;2-P
Hosang, Jürg. 1996. “Behavior of Nitrate in a Heterogeneous Field Soil : Measurements and Modeling on Different Spatial Scales.” Hydrological Processes 1996 (10): 1193–1208. https://doi.org/10.1002/(SICI)1099-1085(199609)10:9<1193::AID-HYP379>3.0.CO;2-P.
Hosang, Jürg. “Behavior of Nitrate in a Heterogeneous Field Soil : Measurements and Modeling on Different Spatial Scales.” Hydrological Processes, vol. 1996, no. 10, 1996, pp. 1193–208, https://doi.org/10.1002/(SICI)1099-1085(199609)10:9<1193::AID-HYP379>3.0.CO;2-P.


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