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Your location: Home > Adaptation > Nairobi Work Programme > Knowledge Resources and Publications |
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Compendium on methods and tools to evaluate impacts of, and vulnerability and adaptation to, climate
change
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General-Purpose Atmospheric Plant Soil Simulator (GAPS
3.1)
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Description
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GAPS is a dynamic DOS or Windows-based simulation software package of the soil-plant-atmosphere
continuum, with crop management explicit in the model. It can simulate a sequence of crops and
climates in a single simulation run. Used to examine the influence of climate on different aspects
of crop management (e.g., the effects of climate variability on the number of field-days for
getting equipment into fields).
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Appropriate Use
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For use in research and teaching the principles and practice of dynamic simulation modeling of the
soil-plant-atmosphere system.
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Scope
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All locations; agricultural sector; site-specific, although can be extrapolated using GIS to a
national level.
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Key Output
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Crop yield and yield components
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Key Input
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Data on the site’s soils, climate, and management.
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Ease of Use
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High skill-level and time commitment required to prepare and run GAPS
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Training Required
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Requires extensive training in crop management and computer modeling
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Training Available
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Self-instruction using manual
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Computer Requirements
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Any PC that uses DOS or Windows 95 (or better). A batch version for large numbers of repetitive
simulations is available.
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Documentation
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Buttler, I.W. and S. Riha. 1989. GAPS: A General Purpose Simulation Model of the
Soil-Plant-Atmosphere System, Version 3.1. User’s Manual. Dept. of Agronomy, Cornell
University, Ithaca, NY.
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Applications
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Used to examine farm-level impacts of climate change on agriculture in the midwestern U.S.
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Contacts for Framework, Documentation, Technical Assistance
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Cornell University
140 Emerson Hall, Ithaca, NY 14853 USA; Tel: +1.607.255.6143; e-mail: sjr4@cornell.edu.
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Cost
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No cost for model
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References
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Kaiser, H., S. Riha, D. Wilks, D. Rossiter, and R. Sampath. 1993. A farm-level analysis of economic
and agronomic impacts of gradual climate warming. American Journal of Agricultural Economics
75:387-398.
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