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Nitrogen surplus—a unified indicator for water pollution in Europe?
Klages-Haberkern, Susanne (Avtor), Heidecke, Claudia (Avtor), Osterburg, Bernhard (Avtor), Bailey, John (Avtor), Calciu, Irina (Avtor), Casey, Clare (Avtor), Dalgaard, Tommy (Avtor), Frick, Hanna (Avtor), Glavan, Matjaž (Avtor), D'Haene, Karoline (Avtor), Hofman, Georges (Avtor), Amorim Leitão, Inês (Avtor), Surdyk, Nicolas (Avtor), Verloop, Koos (Avtor), Velthof, Gerard (Avtor)

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Izvleček
Pollution of ground-and surface waters with nitrates from agricultural sources poses a risk to drinking water quality and has negative impacts on the environment. At the national scale, the gross nitrogen budget (GNB) is accepted as an indicator of pollution caused by nitrates. There is, however, little common EU-wide knowledge on the budget application and its comparability at the farm level for the detection of ground-and surface water pollution caused by nitrates and the monitoring of mitigation measures. Therefore, a survey was carried out among experts of various European countries in order to assess the practice and application of fertilization planning and nitrogen budgeting at the farm level and the differences between countries within Europe. While fertilization planning is practiced in all of the fourteen countries analyzed in this paper, according to current legislation, nitrogen budgets have to be calculated only in Switzerland, Germany and Romania. The survey revealed that methods of fertilization planning and nitrogen budgeting at the farm level are not unified throughout Europe. In most of the cases where budgets are used regularly (Germany, Romania, Switzerland), standard values for the chemical composition of feed, organic fertilizers, animal and plant products are used. The example of the Dutch Annual Nutrient Cycling Assessment (ANCA) tool (and partly of the Suisse Balance) shows that it is only by using farm-specific “real” data that budgeting can be successfully applied to optimize nutrient flows and increase N efficiencies at the farm level. However, this approach is more elaborate and requires centralized data processing under consideration of data protection concerns. This paper concludes that there is no unified indicator for nutrient management and water quality at the farm level. A comparison of regionally calculated nitrogen budgets across European countries needs to be interpreted carefully, as methods as well as data and emission factors vary across countries. For the implementation of EU nitrogen-related policies—notably, the Nitrates Directive—nutrient budgeting is currently ruled out as an entry point for legal requirements. In contrast, nutrient budgets are highlighted as an environment indicator by the OECD and EU institutions.

Jezik:Angleški jezik
Ključne besede:nitrogen budget, nitrogen balance, water pollution, nitrates, agriculture, drinking water
Vrsta gradiva:Članek v reviji (dk_c)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:BF - Biotehniška fakulteta
Leto izida:2020
Št. strani:24 str.
Številčenje:Vol. 12, iss. 4, art. 1197
UDK:556
ISSN pri članku:2073-4441
DOI:10.3390/w12041197 Povezava se odpre v novem oknu
COBISS.SI-ID:9478777 Povezava se odpre v novem oknu
Število ogledov:47
Število prenosov:13
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
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Gradivo je del revije

Naslov:Water
Skrajšan naslov:Water
Založnik:Molecular Diversity Preservation International - MDPI
ISSN:2073-4441
COBISS.SI-ID:36731653 Povezava se odpre v novem oknu

Gradivo je financirano iz projekta

Financer:EC - European Commission
Program financ.:H2020
Številka projekta:727984
Naslov:Farm systems that produce good water quality for drinking water supplies
Akronim:FAirWAY

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:22.04.2020

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:zaloga dušika, bilanca dušika, onesnaženost voda, nitrati, kmetijstvo, pitna voda

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