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    Use of DSSAT models for climate change impact assessment: Calibration and validation of CERES-Wheat and CERESMaize in Spain
    Ana Iglesias Universidad Politecnica de Madrid
    Contribution to: CGE Hands-on Training Workshop on V&A Assessment of the Asia and the Pacific Region Jakarta, 20-24 March 2006-03-21
    Contents
    1. CERES-WHEAT MODEL ..................................................................................................................... 2 1.1. MODEL DESCRIPTION .............................................................................................................. 2 1.2. CALIBRATION AND VALIDATION SITES ....................................................................................... 3 1.3. FIELD EXPERIMENTS ............................................................................................................... 3 1.4. WEATHER .............................................................................................................................. 7 1.5. SOILS .................................................................................................................................... 9 1.6. GENETIC COEFFICIENTS ........................................................................................................ 13 1.7. CALIBRATION IN TOMEJIL, SEVILLA (SPAIN) 1988-89.............................................................. 15 1.8. VALIDATION IN TOMEJIL, SEVILLA .......................................................................................... 19 1.9. VALIDATION IN LAS TIESAS, ALBACETE .................................................................................. 19 1.10. OTHER CALIBRATED VARIETIES ........................................................................................... 20 2. CERES-MAIZE MODEL ..................................................................................................................... 21 2.1. INTRODUCTION ..................................................................................................................... 21 2.2. MODEL DESCRIPTION ........................................................................................................... 21 2.3. SITE AND FIELD EXPERIMENTAL DATA..................................................................................... 22 2.4. CALIBRATION OF CROP PHENOLOGY, BIOMASS AND YIELD ....................................................... 22 2.5. CALIBRATION OF THE WATER BALANCE .................................................................................. 23 3. REFERENCES .......................................................................................................................... 26 ANNEX 1. MODEL OUTPUT FOR THE CALIBRATION IN TOMEJIL 1988-1989 ............................................... 28 ANNEX 2. MODEL OUTPUT FOR THE VALIDATION IN TOMEJIL 1990-1991.................................................. 34 ANNEX 3. MODEL OUTPUT FOR THE VALIDATION IN LAS TIESAS, ALBACETE, 1990-1991 .......................... 40

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