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Introduction and Application of the EPIC model

Introduction and Application of the EPIC model. Wang Xue Chun South west university of science and technology Email ： xuechunwang@swust.edu.cn ; xuechunwang@nwsuaf.edu.cn. Out Line. What can EPIC model do. Application of EPIC model. 1. 2. Which kind of data EPIC model need. 3.

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Introduction and Application of the EPIC model

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  1. Introduction and Application of the EPIC model Wang Xue Chun South west university of science and technology Email： xuechunwang@swust.edu.cn; xuechunwang@nwsuaf.edu.cn

  2. Out Line What can EPIC model do Application of EPIC model 1 2 Which kind of data EPIC model need 3

  3. 1.What is EPIC model • Original name:Erosion Productivity Impact Calculator • Current name:Environment Policy integrated climate model • Birth place:Blackland Research & Extension Center • Birth day:1984 • Father:Jimmy R. Williams

  4. 1.What can EPIC model do ? • Calculate surface runoff and leaching • Simulate nutrition cycle in cropping system • Estimate dynamic change of soil water • Estimate crop yield/biomass • Simulate SOC • Evaluate the impacts of climate change on crop yield, erosion, soil nutrition

  5. 3.What kind of data EPIC model need? 3.1 Soil data

  6. 3.What kind of data EPIC model need? 3.2 Daily or monthly weather data

  7. 3.What kind of data EPIC model need? 3.3 Crop data

  8. 3.What kind of data EPIC model need? 3.4 Others

  9. 3.What kind of data EPIC model need? 3.4 Others

  10. Future 2010 Incorporated GIS with EPIC model 2004 Enhanced carbon cycling routine that is based on the Century model approach; Incorporation of a potassium (K) cycling routine 1998 Improved EPIC wind erosion model (WESS); Incorporation of Baier-Robertson PET routine 1997 Incorporation of RUSLE water erosion equation; Improved snowmelt runoff and erosion component 1995 Enhanced root growth functions; Improved nitrogen fixation routine for legume crops; Incorporation of pesticide routines from GLEAMS model 1994 Incorporation of NRCS TR-55 peak runoff rate component; MUSS, MUST, and MUSI water erosion routines; nitrification-volatilization component 1991 Enhanced root growth functions; Improved nitrogen fixation routine for legume crops; Incorporation of pesticide routines from GLEAMS model 1989 Improved and expanded crop growth sub-model 1984 the Erosion Productivity Impact Calculator (EPIC) model was developed 1977-1980 An experts team was appointed to build the EPIC model. 4. Development of EPIC model

  11. 5. World wide application of EPIC model 5.1 Crop growth and yields

  12. 5. World wide application of EPIC model 5.1 Crop growth and yields

  13. 5. World wide application of EPIC model 5.2 impacts of climate change on crop production

  14. 4 3 2 1 How can we do it based on EPIC model • Evaluate climate model 7 • built climate model • built RG-EPIC model • built GIS map 5 6 9 • integrate 8 • Evaluate crop model • build data base for crop model

  15. 5. World wide application of EPIC model 5.3 Irrigation amount and time

  16. 5. World wide application of EPIC model 5.3 Irrigation amount and time

  17. 5. World wide application of EPIC model 5.4 Nutrient cycle and fertilizer

  18. 5. World wide application of EPIC model 5.4 Nutrient cycle and fertilizer

  19. 5. World wide application of EPIC model 5.4 Nutrient cycle and fertilizer

  20. 5. World wide application of EPIC model 5.5 impacts of climate change on crop production

  21. 5. World wide application of EPIC model 5.6 Simulation of SOC

  22. 5. World wide application of EPIC model 5.6 Simulation of SOC

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