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Author Gomara, I.; Bellocchi, G.; Martin, R.; Rodriguez-Fonseca, B.; Ruiz-Ramos, M. doi  openurl
  Title Influence of climate variability on the potential forage production of a mown permanent grassland in the French Massif Central Type (up) Journal Article
  Year 2020 Publication Agricultural and Forest Meteorology Abbreviated Journal Agricultural and Forest Meteorology  
  Volume 280 Issue Pages 107768  
  Keywords climate variability; grasslands; potential yield; climate services; forage production forecasts; french massif central; pasture simulation-model; dry-matter production; atmospheric; circulation; crop yield; SST anomalies; maize yield; managed grasslands; storm track; ENSO; impacts  
  Abstract Climate Services (CS) provide support to decision makers across socio-economic sectors. In the agricultural sector, one of the most important CS applications is to provide timely and accurate yield forecasts based on climate prediction. In this study, the Pasture Simulation model (PaSim) was used to simulate, for the period 1959–2015, the forage production of a mown grassland system (Laqueuille, Massif Central of France) under different management conditions, with meteorological inputs extracted from the SAFRAN atmospheric database. The aim was to generate purely climate-dependent timeseries of optimal forage production, a variable that was maximized by brighter and warmer weather conditions at the grassland. A long-term increase was observed in simulated forage yield, with the 1995–2015 average being 29% higher than the 1959–1979 average. Such increase seems consistent with observed rising trends in temperature and CO2, and multi-decadal changes in incident solar radiation. At interannual timescales, sea surface temperature anomalies of the Mediterranean (MED), Tropical North Atlantic (TNA), equatorial Pacific (El Niño Southern Oscillation) and the North Atlantic Oscillation (NAO) index were found robustly correlated with annual forage yield values. Relying only on climatic predictors, we developed a stepwise statistical multi-regression model with leave-one-out cross-validation. Under specific management conditions (e.g., three annual cuts) and from one to five months in advance, the generated model successfully provided a p-value<0.01 in correlation (t-test), a root mean square error percentage (%RMSE) of 14.6% and a 71.43% hit rate predicting above/below average years in terms of forage yield collection. This is the first modeling study on the possible role of large-scale oceanic–atmospheric teleconnections in driving forage production in Europe. As such, it provides a useful springboard to implement a grassland seasonal forecasting system in this continent.  
  Address 2020-06-08  
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  Notes LiveM, ft_macsur Approved no  
  Call Number MA @ admin @ Serial 5233  
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Author Sanna, M.; Bellocchi, G.; Fumagalli, M.; Acutis, M. openurl 
  Title Interrelationship and optimal choice of indicators to evaluate performance of agrometeorological models Type (up) Manuscript
  Year Publication Abbreviated Journal  
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  Keywords CropM; LiveM  
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  Call Number MA @ admin @ Serial 2790  
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Author Bellocchi, G.; Ma, S.; Köchy, M.; Braunmiller, K. url  openurl
  Title Datasets classification and criteria for data requirements Type (up) Report
  Year 2013 Publication FACCE MACSUR Reports Abbreviated Journal  
  Volume 2 Issue Pages D-L2.1.2  
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  Abstract This deliverable focuses on the collation, screening, and consolidation of data for selected grassland sites in Europe and peri-Mediterranean regions. No Label  
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  Notes Approved no  
  Call Number MA @ admin @ Serial 2245  
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Author Bellocchi, G.; Ma, S.; Köchy, M.; Braunmiller, K. url  openurl
  Title Identified grassland-livestock production systems and related models Type (up) Report
  Year 2013 Publication FACCE MACSUR Reports Abbreviated Journal  
  Volume 2 Issue Pages D-L2.1.1  
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  Abstract This report describes grassland-livestock production systems, as selected for model-basedstudies. A list of grassland models was identified for evaluation against such datasets(WP2) and application at reference farm (WP3) and regions (WP4) across Europe and peri-European countries. No Label  
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  Call Number MA @ admin @ Serial 2244  
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Author Bellocchi, G.; Ma, S. url  openurl
  Title Results of uncalibrated grassland model runs Type (up) Report
  Year 2014 Publication FACCE MACSUR Reports Abbreviated Journal  
  Volume 3 Issue Pages D-L2.3  
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  Abstract This deliverable focuses on the some illustrative results obtained with the grassland models selected (D-L2.1.1) to simulate biomass and flux data from grassland sites in Europe and peri-Mediterranean regions (D-L2.1.1 and D-L2.1.2). This is a blind exercise, carried out without model calibration. The complete set of results will include simulations from calibrated models. The results shown are illustrative of the methodology adopted for grassland model intercomparison in MACSUR. The insights gained from this ongoing study are relevant for some crop and vegetation models, which in some cases proved comparable to grassland-specific models to simulate biomass data from managed grasslands.   The results reported here cannot be considered conclusive.   Additional results will be published as they become available together with calibration results, as well as the comprehensive evaluation of models with fuzzy logic-based indicators. No Label  
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  Notes Approved no  
  Call Number MA @ admin @ Serial 2234  
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