Transcript PowerPoint File - Michigan State University

International Consortium for Agricultural Systems Applications
http://www.ICASAnet.org
systems approaches and tools.
•Application of computer and system tools for decision making
and policy development related to agricultural production
systems, resource management, food security, and
sustainable development.
•Participating Centers from the Consultative Group on International
•One of the main activities of ICASA is to develop computer
Sites Network for Agrotechnology Transfer (IBSNAT) project
with the Wageningen Agricultural University (WAU) and the
Center for Agrobiological Research (CABO).
models and decision support systems for agricultural and
environmental applications. The main component of the
current toolkit is the Decision Support System for
Agrotechnology Transfer (DSSAT).
Unit (APSRU), Australia was invited to join ICASA.
Agricultural Research
include IFDC,
Alabama, USA; ILRI,
Kenya; CIMMYT
Mexico; IRRI,
Philippines;CIP, Peru;
ICRISAT, India;
CIAT, Colombia;
and IBSRAM, Thailand.
•ICASA is governed by a Board of Directors. The current
•Participating National
co-Chairs are Jim Jones, University of Florida and Johan
Bouma, Wageningen University.
Agricultural Research
Centers include
EMPRABA, Brazil;
Agricultural Research Council, South Africa; INTA, Argentina; KARI,
Kenya; and several others.
•ICASA was initiated in 1991 during the first Symposium on
Systems Approaches for Agricultural Development (SAAD),
held in Bangkok, Thailand.
•In 1998 the Agricultural Production Systems Research
•ICASA organizes and cosponsors conferences, symposia
•A major activity includes training of scientists and others
Recent workshops:
February 21 - March 3, 2000. Tamil Nadu
Agricultural University, Coimbatore, India. Computer
simulation for crop growth and resource management.
May 17 - 29, 1999. International Fertilizer
Development Center. Computer simulation of crop
growth and management responses.
March 9 - 14, 1998. University of Florida.
Optimizing management for precision farming: a systems
approach.
•
•
•
and workshops to improve the dissemination of systems
science and applications, to share decision support tools
and computer models, and to exchange ideas on the
advancement of systems analysis.
Recent and future activities:
November 5 - 9, 2000. Crop models in research and
practice: a symposium honoring Professor J.T. Ritchie.
•
•August 4 - 7, 2000. International Workshop on the
CANEGRO simulation model.
•November 8 - 10, 1999.
CIP, Peru. Third Symposium on
System Approaches
for Agricultural
Development
(SAAD-3).
•1997, 1998, and
1999. Open Forum
at the ASA Annual
Meetings to
exchange ideas
related to ICASA
activities.
DATA STANDARDS
•The IBSNAT project developed data file structures and
standards to be used for both experimental
documentation and model input.
•These files have been used by experimenters and
modelers as part of the DSSAT system.
MODULAR MODEL DEVELOPMENT
•The standards were also adopted by the Global Change
•One of ICASA’s
goals is to promote effective model
development and documentation. This has resulted in
the design of modules.
and Terrestrial Ecosystem (GCTE) project for
documenting experiments and model comparisons.
•Each module should handle all data input, initialization
•ICASA has revised and improved the existing DSSAT
of variables, rate calculations, integration calculations
and output of data related to a specific function.
•Tools are currently being developed to convert the
•This modular approach
existing data files as
well as to enter
new experimental
data into the
ICASA file format.
has been used extensively in
the development of the
Agricultural Production
Systems Simulator (APSIM) of
the APSRU group.
•The ICASA data
•Currently, the model
CROPGRO is being converted
to a modular structure.
CROPGRO will be used as a
template for the other DSSAT
crop models.
standards for a wider range of applications.
standards will be
implemented in
future components
of the ICASA
Toolkit.
Modular Model
•DSSAT has been adopted by more than
1200 scientists in more than 90 countries.
• DSSAT includes:
Biophysical models, including CERES, CROPGRO, SUBSTOR,
•Participating International Universities include Chiang Mai
University, Thailand, Wageningen University, University of Guelph,
University of Buenos Aires and the Australian National University.
•Participating US
Variation in Location of Streams Over Time
Universities include the
University of Hawaii,
University of Florida, the
University of Georgia,
Michigan State University,
Columbia University, Iowa
State University, University
of Nebraska, North
Carolina State University
and the University of
Puerto Rico.
CROPSIM, that simulate growth and development and predict yield
for more than 17 crops. The main crops include wheat, maize, rice,
sorghum, millet, soybean, drybean, peanut, chickpea,cowpea,
potato, cassava, tomato, sugarcane, and sunflower
Utilities for handling of weather, soil, experimental and genotype
data
Application programs to conduct risk analysis of biophysical,
environmental and economic variables
Crop rotation analyzer
Precision agriculture analyzer
Regional impact assessment tool linking GIS and models
•Other toolkit components
Yield Forecast For
Dori, Burkina Faso
include:
Farm System Simulator
Yield Forecast Tools
Famine Early Warning System
El Niño Climate Prediction
PCYield
Regional Planning
Model Development and
140
Training Tools
•A famine early warning system for millet production in Burkina Faso.
•Emergency fertilizer aid to Albania to improve winter wheat
production.
1990 YIELD
1986
1990
100
80
60
1986 YIELD
60
40
40
20 STD DEVS
20
0
160
•Future Tools:
PROJECT EXAMPLES
120 MEANS
STANDARD DEVIATION
on the use and application of computer simulation
models and decision support systems.
TOOLKIT
•ICASA combines the former International Benchmark
CONFERENCES, SYMPOSIA and WORKSHOPS
TRAINING
MEMBERS
RELATIVE YIELD
•A Global Network of participating scientists and institutions.
•Cooperation of scientists to facilitate the development of
BACKGROUND
180 200 220 240 260
DAY OF YEAR OF FORECAST
0
Linkage of crop and animal models for livestock systems
Watershed management strategic planning tool
Development of models for other crops, such as pea,faba bean,
velvetbean, cabbage, pepper, pineapple, banana, etc.
Climate prediction application tools
•Impact of climate change on agricultural production and food
security for many countries.
•National assessment of the potential consequences of climate
variability and change for the United States.
•Watershed management in Honduras and Colombia to reduce
environmental risks and conflicts over water use.
• Yield gap analysis of peanut production systems in Benin and
Ghana.
Genetics
•Managing nitrogen
fertilizer applications
on maize in Malawi
as a function of climate
variability.
•On-farm application
of models for
precision farming
aids.
•The impact of cover
Weather
MODE OF OPERATION
•ICASA is a participatory network.
It encourages scientists to take
part in the design, development, testing and application of crop
models and decision support tools.
•ICASA encourages the sharing of models and computer tools.
•ICASA encourages the exchange of source code and promotes an
open architecture.
•ICASA encourages the sharing of experimental data for applications
and model improvement.
• Yield
•ICASA encourages dissemination of systems science via training
• Soil type
• Images
• Pests
• Elevation
• Drainage
• Fertility
•
•
•
•
•
programs, workshops, symposia, model documentation, scientific
articles and other
media, including the
Aggregated DSSAT Crop Model Yield Changes for +2
and +4 C Temperature Increase
Internet.
o
Causes of Yield
Variability
Develop Prescriptions
Risk Assessment
Economics
•ICASA is planning
Crop Models and Precision Farming
crops on the
sustainability of maize-based farming systems in Central America.
• Evaluation of the economic and environmental impact of land
use changes in Puerto Rico.
•Water use by agriculture in the state of Georgia to help resolve a
tri-state water conflict.
•Management tools and decision support aids for farmers in the
state of Florida to cope with long-term climate variability.
to centralize the
distribution of Tools,
Modules and
Experimental Data
via the web at
http://ICASAnet.org
16
Soybean
Maize
Wheat
Rice
12
Yield Change, %
WHAT IS ICASA ?
8
4
0
-4
-8
T+2
T+4
oC