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Biogeosciences An interactive open-access journal of the European Geosciences Union
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https://doi.org/10.5194/bg-2017-491
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-2017-491
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 30 Nov 2017

Submitted as: research article | 30 Nov 2017

Review status
This discussion paper is a preprint. A revision of the manuscript for further review has not been submitted.

Atmospheric nitrogen deposition to terrestrial ecosystems across Germany

Martijn Schaap1,2, Sabine Banzhaf2, Thomas Scheuschner3, Markus Geupel4, Carlijn Hendriks1, Richard Kranenburg1, Hans-Dieter Nagel3, Arjo J. Segers1, Angela von Schlutow3, Roy Wichink Kruit1,5, and Peter J. H. Builtjes1,2 Martijn Schaap et al.
  • 1TNO, Utrecht, the Netherlands
  • 2Free University Berlin, Institute of Meteorology, Germany
  • 3Ökodata, Berlin, Germany
  • 4UBA, Dessau, Germany
  • 5RIVM, Bilthoven, the Netherlands

Abstract. Biodiversity is strongly affected by the deposition of nitrogen and sulfur on terrestrial ecosystems. In this paper we present new quantitative estimates of the deposition of atmospheric nitrogen to ecosystems across Germany. The methodology combines prognostic and empirical modelling to establish wet deposition fluxes and land use dependent dry and occult deposition fluxes. On average, the nitrogen deposition in Germany was estimated to be 1057 eq ha−1 yr−1. The deposition maps show considerable variability across the German territory with highest deposition on forest ecosystems in or near the main agricultural and industrial areas. The accumulated deposition over Germany of this study is systematically lower (27 %) than provided in earlier studies. The main reasons are an improved wet deposition estimation and the consolidation of improved process descriptions in the LOTOS-EUROS chemistry transport model. The presented deposition estimates show a better agreement with results obtained by integrated monitoring and deposition modelling by EMEP than the earlier results. Through comparison of the new deposition distributions with critical load maps it is estimated that 70 % of the ecosystems in Germany receive too much nitrogen.

Martijn Schaap et al.
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Status: closed (peer review stopped)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Interactive discussion
Status: closed (peer review stopped)
Status: closed (peer review stopped)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Martijn Schaap et al.
Martijn Schaap et al.
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Short summary
Deposition of nitrogen and sulfur from the atmosphere on ecosystems causes a loss of biodiversity. We used a combination of atmospheric modelling and deposition observations to estimate the deposition to ecosystems across Germany. We estimate that 70 % of the ecosystems in Germany receive too much nitrogen from deposition. The results are used to determine whether economic activities causing nitrogen emissions are allowed in sensitive areas.
Deposition of nitrogen and sulfur from the atmosphere on ecosystems causes a loss of...
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