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 414422
Title Assessment of N and P status at the landscape scale using environmental models and measurements
Author(s) Sonneveld, M.P.W.; Vos, J.A. de; Kros, J.; Knotters, M.; Frumau, A.; Bleeker, A.; Vries, W. de
Source Environmental Pollution 162 (2012)March. - ISSN 0269-7491 - p. 168 - 175.
Department(s) Land Dynamics
SS - Soil Physics and Land Use
SS - Soil Chemistry and Nature
SS - Soil Geography
Publication type Refereed Article in a scientific journal
Publication year 2012
Keyword(s) nitrogen - agriculture - netherlands - deposition - emissions - ammonia - fluxes - fate
Abstract We assessed the compliance of a Dutch landscape, dominated by dairy farming, with environmental quality standards using a combination of model calculations and measurements. The total ammonia emission of 2.4 kton NH3 yr-1 does not exceed the environmental quality standard (2.6 kton NH3 yr-1). Nevertheless, the total N deposition (on average 24.4 kg N ha-1 yr-1) is such that critical N loads are exceeded at 53% of the nature areas. The deposited N mainly results from non-agricultural sources and agricultural sources outside the area (72%). The calculated average NO3- concentration in the upper groundwater does not exceed the 50 mg l-1 threshold. Calculated annual average N-total and P-total concentrations in discharge water are relatively high but these cannot be directly compared with thresholds for surface water. The results suggest that compliance monitoring at the landscape scale needs to include source indicators and cannot be based on state indicators alone.
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