Publikation:
Nitrogen soil surface budgets for districts in Germany 1995 to 2017

Kurzanzeige
dc.contributor.authorHäußermann, Uwe
dc.contributor.authorKlement, Laura
dc.contributor.authorBreuer, Lutz
dc.contributor.authorUllrich, Antje
dc.contributor.authorWechsung, Gabriele
dc.date.accessioned2024-06-16T14:04:52Z
dc.date.available2024-06-16T14:04:52Z
dc.date.issued2020
dc.description.abstractBackground Nitrogen (N) as a key input for crop production has adverse effects on the environment through emissions of reactive nitrogen. Less than 20% of the fertiliser nitrogen applied to agricultural land is actually consumed by humans in meat. Given this situation, nitrogen budgets have been introduced to quantify potential losses into the environment, to raise awareness in nutrient management, and to enforce and monitor nutrient mitigation measures. The surplus of the N soil surface budget has been used for many years for the assessment of potentially water pollution with nitrate from agriculture. Results For the 402 districts in Germany, nitrogen soil surface budgets were calculated for the time series 1995 to 2017. For the first time, biogas production in agriculture and the transfer of manure between districts were included in the budget. Averaged for all districts, the recent N supply to the utilised agricultural area (UAA) totals 227 kg N ha-1 UAA (mean 2015-2017), among them 104 kg N ha-1 UAA mineral fertiliser, 59 kg N ha-1 UAA manure, 33 kg N ha-1 UAA digestate, 14 kg N ha-1 UAA from gross atmospheric deposition, 13 kg N ha-1 UAA biological N fixation, and 1 kg N ha-1 UAA from seed and planting material. The withdrawal with harvested products accounts for 149 kg N ha-1 UAA, resulting in an N soil surface budget surplus of 77 kg N ha-1 UAA. The N surpluses per district (mean 2015-2017) vary considerably between 26 and 162 kg N ha-1 UAA and the nitrogen use efficiency of crop production ranges from 0.53 to 0.79 in the districts. The N surplus in Germany as a whole has remained nearly constant since 1995, but the regional distribution has changed significantly. The N surplus has decreased in the arable farming regions, but increased in the districts with high livestock density. Some of this surplus, however, is relocated to other districts through the transfer of manure. Conclusions The 23-year time series forms a reliable basis for further interpretation of N soil surface surplus in Germany. Agri-environmental programmes such as the limitation of the N surplus through the Fertiliser Ordinance and the promotion of biogas production have a clear effect on the N surplus in Germany as a whole and its regional distribution. © 2020 BioMed Central Ltd.en
dc.format.extent1 Onlineressource (14 pages)
dc.format.mediumonline resource
dc.identifier.doihttps://doi.org/10.60810/openumwelt-964
dc.identifier.urihttps://openumwelt.de/handle/123456789/4175
dc.language.isoeng
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectLandwirtschaft
dc.subjectBiogas
dc.subjectStickstoffeffizienz
dc.subjectBundesrepublik Deutschland
dc.titleNitrogen soil surface budgets for districts in Germany 1995 to 2017
dc.title.alternativeNitrogen soil surface budgets for districts in Germany 1995 to 2017
dc.typeWissenschaftlicher Artikel
dc.type.dcmitext
dc.type.mediumcomputer
dspace.entity.typePublication
local.bibliographicCitation.journalTitleEnvironmental Sciences Europe
local.bibliographicCitation.originalDOI10.1186/s12302-020-00382-x
local.bibliographicCitation.volume32 (2020)
local.collectionAufsätze
local.contributor.authorId(DE-588)139818200
local.contributor.authorId02139703
local.contributor.authorId02179778
local.contributor.authorId00387942
local.contributor.authorId00408362
local.identifier.catalogId02477029
local.ingest.leader06935naa a2200000uu 4500
local.jointTitleNITROGEN SOIL SURFACE BUDGETS FOR DISTRICTS IN GERMANY 1995 TO 2017
local.reviewtrue
local.sourcecatalog
local.staffPublicationtrue
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relation.isAuthorOfPublication.latestForDiscoveryb13cd022-2d87-465d-8b58-7c919b7e507e
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