Nitrogen and phosphorus retention in surface waters: An inter-comparison of predictions by catchment models of different complexity

Hejzlar, J; Anthony, S; Arheimer, B; Behrendt, H; Bouraoui, F; Grizzetti, B; Groenendijk, P; Jeuken, MHJL; Johnsson, H; Lo Porto, A; Kronvang, B; Panagopoulos, Y; Siderius, C; Silgram, M; Venohr, M; Zaloudik, J

dc.contributor.author	Hejzlar, J	en
dc.contributor.author	Anthony, S	en
dc.contributor.author	Arheimer, B	en
dc.contributor.author	Behrendt, H	en
dc.contributor.author	Bouraoui, F	en
dc.contributor.author	Grizzetti, B	en
dc.contributor.author	Groenendijk, P	en
dc.contributor.author	Jeuken, MHJL	en
dc.contributor.author	Johnsson, H	en
dc.contributor.author	Lo Porto, A	en
dc.contributor.author	Kronvang, B	en
dc.contributor.author	Panagopoulos, Y	en
dc.contributor.author	Siderius, C	en
dc.contributor.author	Silgram, M	en
dc.contributor.author	Venohr, M	en
dc.contributor.author	Zaloudik, J	en
dc.date.accessioned	2014-03-01T01:31:20Z
dc.date.available	2014-03-01T01:31:20Z
dc.date.issued	2009	en
dc.identifier.issn	14640325	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19781
dc.subject	Nitrogen	en
dc.subject	Phosphorus	en
dc.subject	Surface Water	en
dc.subject.other	nitrogen	en
dc.subject.other	phosphorus	en
dc.subject.other	surface water	en
dc.subject.other	article	en
dc.subject.other	catchment	en
dc.subject.other	climate change	en
dc.subject.other	controlled study	en
dc.subject.other	Czech Republic	en
dc.subject.other	hydrology	en
dc.subject.other	intermethod comparison	en
dc.subject.other	Italy	en
dc.subject.other	lake	en
dc.subject.other	Norway	en
dc.subject.other	nutrient concentration	en
dc.subject.other	nutrient content	en
dc.subject.other	priority journal	en
dc.subject.other	process model	en
dc.subject.other	United Kingdom	en
dc.subject.other	water analysis	en
dc.subject.other	water quality	en
dc.subject.other	water supply	en
dc.subject.other	Conservation of Natural Resources	en
dc.subject.other	Environmental Monitoring	en
dc.subject.other	Europe	en
dc.subject.other	Models, Theoretical	en
dc.subject.other	Nitrogen	en
dc.subject.other	Phosphorus	en
dc.subject.other	Rivers	en
dc.subject.other	Time Factors	en
dc.subject.other	Water Pollutants, Chemical	en
dc.title	Nitrogen and phosphorus retention in surface waters: An inter-comparison of predictions by catchment models of different complexity	en
heal.type	journalArticle	en
heal.identifier.primary	10.1039/b901207a	en
heal.identifier.secondary	http://dx.doi.org/10.1039/b901207a	en
heal.publicationDate	2009	en
heal.abstract	Nitrogen and phosphorus retention estimates in streams and standing water bodies were compared for four European catchments by a series of catchment-scale modelling tools of different complexity, ranging from a simple, equilibrium input-output type to dynamic, physical-based models: source apportionment, MONERIS, EveNFlow, TRK, SWAT, and NL-CAT. The four catchments represent diverse climate, hydrology, and nutrient loads from diffuse and point sources in Norway, the UK, Italy, and the Czech Republic. The models' retention values varied largely, with tendencies towards higher scatters for phosphorus than for nitrogen, and for catchments with lakes (Vansjø-Hobøl, Želivka) compared to mostly or entirely lakeless catchments (Ouse or Enza, respectively). A comparison of retention values with the size of nutrient sources showed that the modelled nutrient export from diffuse sources was directly proportional to retention estimates, hence implying that the uncertainty in quantification of diffuse catchment sources of nutrients was also related to the uncertainty in nutrient retention determination. This study demonstrates that realistic modelling of nutrient export from large catchments is very difficult without a certain level of measured data. In particular, even complex process oriented models require information on the retention capabilities of water bodies within the receiving surface water system and on the nutrient export from micro-catchments representing the major types of diffuse sources to surface waters. © 2009 The Royal Society of Chemistry.	en
heal.journalName	Journal of Environmental Monitoring	en
dc.identifier.doi	10.1039/b901207a	en
dc.identifier.volume	11	en
dc.identifier.issue	3	en
dc.identifier.spage	584	en
dc.identifier.epage	593	en