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| Titel |
A model for simulating the timelines of field operations at a European scale for use in complex dynamic models |
| VerfasserIn |
N. J. Hutchings, G. J. Reinds, A. Leip, M. Wattenbach, J. F. Bienkowski, T. Dalgaard, U. Dragosits, J. L. Drouet, P. Durand, O. Maury, W. de Vries |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 9, no. 11 ; Nr. 9, no. 11 (2012-11-14), S.4487-4496 |
| Datensatznummer |
250007391
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| Publikation (Nr.) |
 copernicus.org/bg-9-4487-2012.pdf |
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| Zusammenfassung |
| Complex dynamic models of carbon and nitrogen are often used to investigate
the consequences of climate change on agricultural production and greenhouse
gas emissions from agriculture. These models require high temporal
resolution input data regarding the timing of field operations. This paper
describes the Timelines model, which predicts the timelines of key field
operations across Europe. The evaluation of the model suggests that
while for some crops a reasonable agreement was obtained in the prediction
of the times of field operations, there were some very large differences
which need to be corrected. Systematic variations in the date of harvesting
and in the timing of the first application of N fertiliser to winter crops
need to be corrected and the prediction of soil workability and
trafficability might enable the prediction of ploughing and applications of
solid manure in preparation for spring crops. The data concerning the
thermal time thresholds for sowing and harvesting underlying the model
should be updated and extended to a wider range of crops. |
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