1. General Model Information

Name: Soybean simulation growth model

Acronym: GOYCIM

Main medium: air+terrestrial
Main subject: biogeochemistry
Organization level: ecosystem
Type of model: not specified
Main application:
Keywords: crop growth, soybean, temperature, solar radiation, rainfallsoil, management


Dr. Basil Acock
Research Leader
USDA-ARS Systems Research LabBldg. 007, Rm. 008
MD 20705-2350
Fax : 301-504-5823
email: bacock@asrr.arsusda.gov



GOYCIM is a soybean simulation growth model that is an extension of GLYCIM. Its purpose is to predict how soybeans will grow given weather, soils, and management strategies. It differs from GLYCIM in that GOYCIM is designed to be run on larger scales (counties to regional).

GOYCIM simulates

The model operates on a daily time step for a growing season. A typical run is for 20 years.

Model input data requirements include:

Model output contains over 25 variables related to plant yield, nitrogen fixation, carbon storage per plant component and leaf area index.

Author of the abstract:


GOYCIM is no longer maintained under this name, for recent developments see GLYCIM

II. Technical Information

II.1 Executables:

Operating System(s): Macintosh, PC or Cray computer

II.2 Source-code:

Programming Language(s): FORTRAN with Pascal extensions

II.3 Manuals:

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

III.2.2 Output

IV. References

USDA Journal. Model is documented in a 1991 University of Idaho miscellaneous series bulletin #145

V. Further information in the World-Wide-Web

VI. Additional remarks

Global change implications: The GOYCIM model will be usedfor global change research by Jonathan Haskett at ARS, Beltsville, MarylandThe model will be run at a regional level (state level) using a weathergenerator such as WGEN to simulate patterns predicted by Global CirculationModels (GCMs) at the regional level.
Last review of this document by: T. Gabele: 9. 7. 1997 -
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:44 CEST 2002

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