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 539015
Title A comparison of disaggregated nitrogen budgets for Danish agriculture using Europe-wide and national approaches
Author(s) Kros, Johannes; Hutchings, Nicholas J.; Kristensen, Inge Toft; Kristensen, Ib Sillebak; Børgesen, Christen Duus; Voogd, Jan Cees; Dalgaard, Tommy; Vries, Wim de
Source Science of the Total Environment 643 (2018). - ISSN 0048-9697 - p. 890 - 901.
DOI http://dx.doi.org/10.1016/j.scitotenv.2018.06.267
Department(s) WIMEK
Alterra - Sustainable soil management
Environmental Systems Analysis Group
Publication type Refereed Article in a scientific journal
Publication year 2018
Availibility Full text available from 2020-12-01
Keyword(s) Agricultural soils - Budgets - Disaggregation - Modelling - National - Nitrogen
Abstract

Spatially detailed information on agricultural nitrogen (N) budgets is relevant to identify regions where there is a need for a reduction in inputs in view of various forms of N pollution. However, at the scale of the European Union, there is a lack of consistent, reliable, high spatial resolution data necessary for the calculation of regional N losses. To gain insight in the reduction in uncertainty achieved by using higher spatial resolution input data. This was done by comparing spatially disaggregated agricultural N budgets for Denmark for the period 2000–2010, generated by two versions of the European scale model Integrator, a version using high spatial resolution national data for Denmark (Integrator-DK) and a version using available data at the EU scale (Integrator-EU). Results showed that the national N fluxes in the N budgets calculated by the two versions of the model were within 1–5% for N inputs by fertilizer and manure excretion, but inputs by N fixation and N mineralisation differed by 50–100% and N uptake also differed by ca 25%, causing a difference in N leaching and runoff of nearly 50%. Comparison with an independently derived Danish national budget appeared generally to be better with Integrator-EU results in 2000 but with Integrator-DK results in 2010. However, the spatial distribution of manure distribution and N losses from Integrator-DK were closer to observed distributions than those from Integrator-EU. We conclude that close attention to local agronomic practices is needed when using a leaching fraction approach and that for effective support of environmental policymaking, Member States need to collect or submit high spatial resolution agricultural data to Eurostat.

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