The grassland model intercomparison of the MACSUR (Modelling European Agriculture with Climate Change for Food Security) European knowledge hub

Shaoxiu Ma, Marco Acutis, Zoltán Barcza, Haythem Ben Touhami, Luca Doro, Dóra Hidy, Martin Köchy, Julien Minet, Eszter Lellei-Kovács, Alessia Perego, Susanne Rolinski, Françoise Ruget, Giovanna Seddaiu, Lianhai Wu, Gianni Bellocchi

Research output: Contribution to conferencePaper

5 Citations (Scopus)

Abstract

The grassland model intercomparison of the FACCE MACSUR knowledge hub involves nine modelling approaches. Grassland-specific approaches (AnnuGrow, PaSim, SPACSYS) were compared to the approaches mainly conceived to simulate crops (ARMOSA, EPIC, STICS) and biomes (Biome-BGC MuSo, CARAIB, LPJmL). The model intercomparison exercise is run over nine grassland sites across Europe and peri-Mediterranean regions where data were collected from at least five up to 31 years, with focus on biomass production and carbon exchanges. The protocol for model intercomparison, derived from Agricultural Model Intercomparison and Improvement Project, includes sensitivity tests, as well as blind and calibrated simulations. A fuzzy logic-based indicator for model assessment was developed to provide insights into agreement between simulations and observations, complexity of model structure and robustness of simulation results over a variety of conditions. Some results are illustrated, which show the limitations of the models run with current parameterization to simulate grassland dry matter and C exchanges across the Euro-Mediterranean region. The study also suggests that the regional calibration can accommodate model discrepancies. However, areas in the model structures have been identified that require further improvements to reduce uncertainties and increase reliability of model results in impact studies.

Original languageEnglish
Pages2218-2225
Number of pages8
Publication statusPublished - 2014
Event7th International Congress on Environmental Modelling and Software, iEMSs 2014 - San Diego, United States
Duration: Jun 15 2014Jun 19 2014

Other

Other7th International Congress on Environmental Modelling and Software, iEMSs 2014
CountryUnited States
CitySan Diego
Period6/15/146/19/14

Keywords

  • Evaluation
  • Grassland
  • Intercomparison
  • Modelling

ASJC Scopus subject areas

  • Software
  • Environmental Engineering
  • Modelling and Simulation

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  • Cite this

    Ma, S., Acutis, M., Barcza, Z., Touhami, H. B., Doro, L., Hidy, D., Köchy, M., Minet, J., Lellei-Kovács, E., Perego, A., Rolinski, S., Ruget, F., Seddaiu, G., Wu, L., & Bellocchi, G. (2014). The grassland model intercomparison of the MACSUR (Modelling European Agriculture with Climate Change for Food Security) European knowledge hub. 2218-2225. Paper presented at 7th International Congress on Environmental Modelling and Software, iEMSs 2014, San Diego, United States.