1. General Model Information

Name: Modeling of Soil Forming Processes

Acronym: SOILMOD

Main medium: aquatic+terrstrial+
Main subject: biogeochemistry
Organization level: ecosystem
Type of model: not specified
Main application:
Keywords: Education Spreadsheets, Soil Processes


Drs. E.L. MeijerAgricultural UniversityDept. Soil Science & Geology
Duivendaal 10NL 6701 AR Wageningen, The Netherlands



80 hrs course introducing the principles of mathematical formulation and dynamic modeling of soil forming processes and their interactions, using transparant LOTUS/SYMPHONY spreadsheets and graphs of gradually increasing level of integration.

II. Technical Information

II.1 Executables:

Operating System(s): LOTUS-123 and LOTUS-SYMPHONY needed.

II.2 Source-code:

Programming Language(s): Fifteen spreadsheets available on Introduction, Climate,Soil water balance, Moisture characteristics, NumericalIntegration, Decalcification, Feldspar weathering, Organicdynamics, Polyacid model for deprotonation and Al complexation,culminating in podzolization. Self-explanatory hypothetical case. Other: The model is for educational purposes. The aim is to understandthe aspects involved in research and applied models.

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

E.L. Meijer and T.C.J. Feijtel, 1994. Simulation of SoilForming Processes 4th ed., textbook (104 p) and working book(37 p), Agric. Univ. Dept. Soil Science & Geology, InternalPublication (+ spreadsheets).

V. Further information in the World-Wide-Web

VI. Additional remarks

Last review of this document by: T. Gabele: Thu Sep 18 1997
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:50 CEST 2002

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