south west university of science and technology introduction and application of the epic model wang...

South West University of Science and Technology

Introduction and Application of the EPIC model

Wang Xue ChunSouth west university of science and technologyEmail ：[email protected];[email protected]

South west university of science and technology

Out Line

1 What can EPIC model do

3 Application of EPIC model

2 Which kind of data EPIC model need


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


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


3.What kind of data EPIC model need?

3.1 Soil data



3.2 Daily or monthly weather data



3.3 Crop data



3.4 Others

1977-1980 An experts team was appointed to build the EPIC model.

1984 the Erosion Productivity Impact Calculator (EPIC) model was developed

4. Development of EPIC model

2010 Incorporated GIS with EPIC model

1989 Improved and expanded crop growth sub-model

1991Enhanced root growth functions; Improved nitrogen fixation routine for legume crops; Incorporation of pesticide routines from GLEAMS model

1998Improved EPIC wind erosion model (WESS); Incorporation of Baier-Robertson PET routine

2004 Enhanced carbon cycling routine that is based on the Century model approach; Incorporation of a potassium (K) cycling routine

1995 Enhanced root growth functions; Improved nitrogen fixation routine for legume crops; Incorporation of pesticide routines from GLEAMS model

1997Incorporation of RUSLE water erosion equation; Improved snowmelt runoff and erosion component

1994 Incorporation of NRCS TR-55 peak runoff rate component; MUSS, MUST, and MUSI water erosion routines; nitrification-volatilization component

Future


5. World wide application of EPIC model

Authors Year Crops Area

Williams et al 1989 barley, corn, rice, soybean, sunflower, and wheat

Asia, France, America

Cabelguenne et al

1990-2001 corn, grain sorghum, sunflower, and soybean

Southern France

Bryant et al 1992 corn Bush land, Texas

Geleta et al 1994 corn, sorghum, and winter wheat

Oklahoma Panhandle

5.1 Crop growth and yields




Cavero et al. 1997-1999 tomato, safflower, and winter wheat

California

Roloff et al 1998 Soy bean Ontario; Quebec,

Chung et al 2001 corn, soybean, and alfalfa Lamberton, Minnesota

Perez-Quezada et al

2003 wheat, tomatoes, beans, and sunflowers

California

Li et al 2005 corn, winter wheat, Chinese pine, locust

The Loess Plateau, China

Wang et al 2008-2011 corn, wheat, apple, soybean, alfalfa, broom corn millet, foxtail millet


5.1 Crop growth and yields



5.2 impacts of climate change on crop production

Authors years Content Area

Izaurralde et al. Adams et alMeza and Wilks

199920032004

El Niño, El Viejo, or La Niña Southern Oscillation(ENSO) phenomena effects on crop yields

United StatesMexicoChile

Zhiqiang wang et al 2008 The impacts of climate change on winter wheat yield (historic weather data)

the North China Plain

Xuechun wang et al 2008-2011

The impacts of climate change on soil organic carbon. (RegCM)



66

• build data base for crop model

•Evaluate crop model

• integrate

How can we do it based on EPIC model

•built climate model3

44

•Evaluate climate model

1

22

• built RG-EPIC model• built GIS map

5

7

8

99



5.3 Irrigation amount and time


Bryant et al 1992 corn Bush land, Texas

Ellis et al 1993 cotton Western Texas

Geleta et al 1994 corn, sorghum, and winter wheat

Oklahoma Panhandle

Tayfur et al 1995 alfalfa the Imperial Valley in California

Rinaldi et al 2001 sunflower Southern Italy



5.4 Nutrient cycle and fertilizer

Authors (year) Content Area

Engelke et al. (1991); Richter et al. (1996)

N leached, mineralized, immobilized, denitrified, and/or in plant uptake

Netherlands, UK

Edwards et al.(1994)

organic N; N and P in runoff; total P; poultry manure applied to 4 pastures

Northwestern Arkansas

Jackson et al. (1994)

N in soil, leached, and taken up by crop; Crisphead lettuce

Salinas Valley, California

Warner et al.(1997)

N in soil and taken up by crop; cont. corn Storrs, Connecticut




Authors (year) content area

Cavero et al. (1997-1999)

N in soil, leached, and taken up by crop; tomato, wheat, and safflower rotations

Sacramento Valley, California

Flowers et al.(1998)

organic N and P; N and P in runoff; Total N and P in runoff and sediment; N in tile flow; sorghum-cotton rotation

the Colorado Watershed

Chung et al. (1999)

Hydrologic balance, crop yield, and sediment; N leached and in runoff from fertilizer

southwest Iowa

Forster et al. (2000)

Sediment; N and P in runoff, organic N and P; fertilizer and manure applications

Muamee and Sanduskywatersheds,




Pierson et al. (2001)

Dissolved reactive P in runoff from applied broiler litter to 6 grassland paddocks

Georgia

Chung et al. (2001)

tile flow; N in soil, in tile flow, and takenup by crop; cont. corn, corn-soybean, cont. alfalfa

Lamberton, Minnesota

Chung et al. (2002)

tile flow; N in tile flow; cont. corn, corn-soybean

Nashua, Iowa

Wang et al Sustainable fertilizer level for winter wheat and spring corn




5.5 impacts of climate change on crop production

Authors years Content Area

Stockle et al 1992 potential climate change United States

Easterling et al; Phillips et al; Lee et al.

1990-2001

hypothetical climate/CO2 scenarios U.S. Corn BeltCorn and soybean

Brown and Rosenberg

1999 generated by GCMs United StatesCorn and wheat

Thomson, Brown,and Ghan

2002 the impact of a doubling of CO2 on dryland wheat yields

eastern Washington



5.6 Simulation of SOC

Authors (year) content areas

Lee et al. 1993-1996 Estimate SOC under different climate scenarios and different tillage methods

U.S. Corn Belt

Mitchell et al (1998) The Impact of Soil ConservationPolicies on Carbon Sequestration in Agricultural Soils

United States

Roloff et al (1998) estimated total SOC content for a long-term spring wheat rotation

Saskatchewan

Campbell et al (2000)

estimate SOC reductions by water and wind erosion

Saskatchewan



5.6 Simulation of SOC

Izaurralde et al. 2001-2004

Simulate soil carbon dynamics over a range of environmental conditions and cropping/vegetation and management systems

Nebraska, Kansas, Texas, Alberta

Zhao et al (2004) Dynamic change of SOC under different tillage methods

Iowa

Wang et al (2008-2011)

Effects of climate change on SOC for different cropping systems


Xiaoning Zhao (2013) Simulating soil C dynamics in different cropping systems and under different tillage methods

Kansas, Texas

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