Groundwater nitrate response to sustainable nitrogen management

Abstract Throughout the world, nitrogen (N) losses from intensive agricultural production may end up as undesirably high concentrations of nitrate in groundwater with a long-term impact on groundwater quality. This has human and environmental health consequences, due to the use of groundwater as a d...

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Autores principales:	Birgitte Hansen, Lærke Thorling, Jörg Schullehner, Mette Termansen, Tommy Dalgaard
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/fc260458ce8a43aca7338ef5955f40e3
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id	oai:doaj.org-article:fc260458ce8a43aca7338ef5955f40e3
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spelling	oai:doaj.org-article:fc260458ce8a43aca7338ef5955f40e32021-12-02T11:53:06ZGroundwater nitrate response to sustainable nitrogen management10.1038/s41598-017-07147-22045-2322https://doaj.org/article/fc260458ce8a43aca7338ef5955f40e32017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07147-2https://doaj.org/toc/2045-2322Abstract Throughout the world, nitrogen (N) losses from intensive agricultural production may end up as undesirably high concentrations of nitrate in groundwater with a long-term impact on groundwater quality. This has human and environmental health consequences, due to the use of groundwater as a drinking water resource, and causes eutrophication of groundwater-dependent ecosystems such as wetlands, rivers and near-coastal areas. At national scale, the measured nitrate concentrations and trends in Danish oxic groundwater in the last 70 years correlate well with the annual agricultural N surpluses. We also show that the N use efficiency of agriculture is related to the groundwater nitrate concentrations. We demonstrate an inverted U-shape of annual nitrate concentrations as a function of economic growth from 1948 to 2014. Our analyses evidence a clear trend of a reversal at the beginning of the 1980s towards a more sustainable agricultural N management. This appears to be primarily driven by societal demand for groundwater protection linked to economic prosperity and an increased environmental awareness. However, the environmental and human health thresholds are still exceeded in many locations. Groundwater protection is of fundamental global importance, and this calls for further development of environmentally and economically sustainable N management in agriculture worldwide.Birgitte HansenLærke ThorlingJörg SchullehnerMette TermansenTommy DalgaardNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Birgitte Hansen Lærke Thorling Jörg Schullehner Mette Termansen Tommy Dalgaard Groundwater nitrate response to sustainable nitrogen management
description	Abstract Throughout the world, nitrogen (N) losses from intensive agricultural production may end up as undesirably high concentrations of nitrate in groundwater with a long-term impact on groundwater quality. This has human and environmental health consequences, due to the use of groundwater as a drinking water resource, and causes eutrophication of groundwater-dependent ecosystems such as wetlands, rivers and near-coastal areas. At national scale, the measured nitrate concentrations and trends in Danish oxic groundwater in the last 70 years correlate well with the annual agricultural N surpluses. We also show that the N use efficiency of agriculture is related to the groundwater nitrate concentrations. We demonstrate an inverted U-shape of annual nitrate concentrations as a function of economic growth from 1948 to 2014. Our analyses evidence a clear trend of a reversal at the beginning of the 1980s towards a more sustainable agricultural N management. This appears to be primarily driven by societal demand for groundwater protection linked to economic prosperity and an increased environmental awareness. However, the environmental and human health thresholds are still exceeded in many locations. Groundwater protection is of fundamental global importance, and this calls for further development of environmentally and economically sustainable N management in agriculture worldwide.
format	article
author	Birgitte Hansen Lærke Thorling Jörg Schullehner Mette Termansen Tommy Dalgaard
author_facet	Birgitte Hansen Lærke Thorling Jörg Schullehner Mette Termansen Tommy Dalgaard
author_sort	Birgitte Hansen
title	Groundwater nitrate response to sustainable nitrogen management
title_short	Groundwater nitrate response to sustainable nitrogen management
title_full	Groundwater nitrate response to sustainable nitrogen management
title_fullStr	Groundwater nitrate response to sustainable nitrogen management
title_full_unstemmed	Groundwater nitrate response to sustainable nitrogen management
title_sort	groundwater nitrate response to sustainable nitrogen management
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/fc260458ce8a43aca7338ef5955f40e3
work_keys_str_mv	AT birgittehansen groundwaternitrateresponsetosustainablenitrogenmanagement AT lærkethorling groundwaternitrateresponsetosustainablenitrogenmanagement AT jorgschullehner groundwaternitrateresponsetosustainablenitrogenmanagement AT mettetermansen groundwaternitrateresponsetosustainablenitrogenmanagement AT tommydalgaard groundwaternitrateresponsetosustainablenitrogenmanagement
_version_	1718394904677187584

Groundwater nitrate response to sustainable nitrogen management

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