Export of nutrients from the catchment of the upper Szeszupa River (drainage basin of the Neman River) and its seasonality

The article presents the dynamics of concentrations and export of nitrogen, phosphorus, TOC in the upper Szeszupa River (tributary of the River Neman) in the period from 2000 to 2014 (15 years) based on monthly analyses performed in Poland in the scope of the National Environmental Monitoring. The l...

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Main Author: Górniak Andrzej
Format: Article
Language:English
Published: MDPI AG 2016-12-01
Series:Limnological Review
Subjects:
Online Access:https://doi.org/10.1515/limre-2016-0023
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author Górniak Andrzej
author_facet Górniak Andrzej
author_sort Górniak Andrzej
collection DOAJ
description The article presents the dynamics of concentrations and export of nitrogen, phosphorus, TOC in the upper Szeszupa River (tributary of the River Neman) in the period from 2000 to 2014 (15 years) based on monthly analyses performed in Poland in the scope of the National Environmental Monitoring. The lakeland river with a mean discharge of 1.6 m3 s−1 and catchment dominated by agricultural land exports approximately 20 kg ha−1 of organic carbon compounds per year. The export of nitrogen is insignificant (3.8 kg ha−1) with 55% accounting for the element in the form of organic compounds and 31% for nitrates. Phosphorus export is also relatively low (0.12 kg ha−1), with 30% of the load of TP constituted by orthophosphates. During four months (February–May), 40–60% of annual export of nutrients was discharged, whereas the load of nitrates and organic nitrogen was higher than the contribution of outflowing water. From 2010, an increasing tendency has been observed in organic nitrogen export. This may be related to the intensification of animal production in NE Poland and an increase in livestock density.
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spelling doaj.art-6e035a5375e54af6a84f10867b6d84b82024-02-03T11:09:33ZengMDPI AGLimnological Review2300-75752016-12-0116421321910.1515/limre-2016-0023limre-2016-0023Export of nutrients from the catchment of the upper Szeszupa River (drainage basin of the Neman River) and its seasonalityGórniak Andrzej0Department of Hydrobiology, University of Białystok, Ciołkowskiego 1J, 15-254 Białystok, PolandThe article presents the dynamics of concentrations and export of nitrogen, phosphorus, TOC in the upper Szeszupa River (tributary of the River Neman) in the period from 2000 to 2014 (15 years) based on monthly analyses performed in Poland in the scope of the National Environmental Monitoring. The lakeland river with a mean discharge of 1.6 m3 s−1 and catchment dominated by agricultural land exports approximately 20 kg ha−1 of organic carbon compounds per year. The export of nitrogen is insignificant (3.8 kg ha−1) with 55% accounting for the element in the form of organic compounds and 31% for nitrates. Phosphorus export is also relatively low (0.12 kg ha−1), with 30% of the load of TP constituted by orthophosphates. During four months (February–May), 40–60% of annual export of nutrients was discharged, whereas the load of nitrates and organic nitrogen was higher than the contribution of outflowing water. From 2010, an increasing tendency has been observed in organic nitrogen export. This may be related to the intensification of animal production in NE Poland and an increase in livestock density.https://doi.org/10.1515/limre-2016-0023riverexportnitrogenphosphorousorganic carbon
spellingShingle Górniak Andrzej
Export of nutrients from the catchment of the upper Szeszupa River (drainage basin of the Neman River) and its seasonality
Limnological Review
river
export
nitrogen
phosphorous
organic carbon
title Export of nutrients from the catchment of the upper Szeszupa River (drainage basin of the Neman River) and its seasonality
title_full Export of nutrients from the catchment of the upper Szeszupa River (drainage basin of the Neman River) and its seasonality
title_fullStr Export of nutrients from the catchment of the upper Szeszupa River (drainage basin of the Neman River) and its seasonality
title_full_unstemmed Export of nutrients from the catchment of the upper Szeszupa River (drainage basin of the Neman River) and its seasonality
title_short Export of nutrients from the catchment of the upper Szeszupa River (drainage basin of the Neman River) and its seasonality
title_sort export of nutrients from the catchment of the upper szeszupa river drainage basin of the neman river and its seasonality
topic river
export
nitrogen
phosphorous
organic carbon
url https://doi.org/10.1515/limre-2016-0023
work_keys_str_mv AT gorniakandrzej exportofnutrientsfromthecatchmentoftheupperszeszupariverdrainagebasinofthenemanriveranditsseasonality