Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 348600
Title Critical Loads and present deposition thresholds of nitrogen and acidity and their exceedances at level II and level I monitoring plots in Europe
Author(s) Bleeker, A.; Reinds, G.J.; Vermeulen, A.T.; Vries, W. de; Erisman, J.W.
Source Petten : ECN (ECN rapport C--04-117) - 155 p.
Department(s) Soil Science Centre
ALTERRA Wageningen UR
Publication type Scientific report
Publication year 2004
Abstract This report presents an assessment of site specific deposition estimates and critical load exceedances of sulphur and nitrogen for selected Intensive Monitoring plots based on input and output estimates and extrapolation to a European wide scale. Depositions for the individual monitoring plots were calculated by means of a high-resolution deposition model (IDEM) and the results were compared to measured depositions for selected Intensive Monitoring sites. Also for the European Level I sites deposition estimates were computed. Not only the deposition of sulphur and nitrogen compounds was determined, but also the deposition of base cations was calculated. For this an approach was used, mainly based on available measurement data from the Intensive Monitoring sites. This derived model was also used to extrapolate to the Level I sites and Intensive Monitoring sites without deposition measurements. Critical loads according to the effect-based and stand-still approach were calculated, as well as present deposition thresholds for both the Intensive Monitoring sites and the Level I sites. Using the deposition calculations and critical loads/present deposition thresholds, exceedances of these target loads were calculated and presented. The uncertainties involved in these calculations were evaluated and finally conclusions were drawn on the basis of the results of the different calculations.
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