Integrated modelling of crop production and nitrate leaching with the Daisy model

Research output: Contribution to journalJournal articleResearchpeer-review

Kiril Manevski, Christen D. Børgesen, Xiaoxin Li, Mathias N. Andersen, Per Abrahamsen, Chunsheng Hu, Søren Hansen

An integrated modelling strategy was designed and applied to the Soil-Vegetation-Atmosphere Transfer model Daisy for simulation of crop production and nitrate leaching under pedo-climatic and agronomic environment different than that of model original parameterisation. The points of significance and caution in the strategy are: •Model preparation should include field data in detail due to the high complexity of the soil and the crop processes simulated with process-based model, and should reflect the study objectives. Inclusion of interactions between parameters in a sensitivity analysis results in better account for impacts on outputs of measured variables.•Model evaluation on several independent data sets increases robustness, at least on coarser time scales such as month or year. It produces a valuable platform for adaptation of the model to new crops or for the improvement of the existing parameters set. On daily time scale, validation for highly dynamic variables such as soil water transport remains challenging. •Model application is demonstrated with relevance for scientists and regional managers. The integrated modelling strategy is applicable for other process-based models similar to Daisy. It is envisaged that the strategy establishes model capability as a useful research/decision-making, and it increases knowledge transferability, reproducibility and traceability.

Original languageEnglish
JournalMethodsX
Volume3
Pages (from-to)350-363
Number of pages14
ISSN2215-0161
DOIs
Publication statusPublished - 2016

    Research areas

  • Journal Article

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