1. General Model Information

Name: transport of water, solutes and heat in soils

Acronym: SIMULAT

Main medium: terrestrial
Main subject: biogeochemistry, hydrology
Organization level: Ecosystems
Type of model: compartment model
Main application:
Keywords: soil, adsorption, water transport, heat transport, evapotranspiration, solute transport, pesticides,


Prof. Dr. Bernd Diekkrueger
Hydrology Research Group
Department of Geography
University of Bonn
Meckenheimer Allee 166
53115 Bonn

Phone: +49(0)228-732102
Fax: +49(0)228-735393
email: b.diekkrueger@uni-bonn.de
Homepage: http://www.giub.uni-bonn.de/hrg/Members_Diekkrueger.htm


Dr. Bernd Diekkrueger
Prof. Otto Richter
P. Noertershaeuser


contents of the model
The model simulates transport of water, solutes and heat in soils. Sorption and degradation of pesticides is also included. Since the processes describing pesticide sorption and degradation are identical to those used in the model HERBSIM, the corresponding quantities are treated as if they can be taken as output of the HERBSIM model (see Coupling with other models).
principles of the model
Transport of water, solutes and heat is described by differential equations, which are solved numerically.

II. Technical Information

II.1 Executables:

Operating System(s): MS-DOS 4.0 or higher Type of computer: PC List of files: parameter file, climate data, measurements (optional), graphics information (required only for online graphécs)

II.2 Source-code:

Programming Language(s):

II.3 Manuals:

Manual: Diekkrueger, B.: Systemhandbuch und Benutzerhandbuch fuer SIMULAT 2.2 und Demonstrat 2.2.

II.4 Data:

III. Mathematical Information

III.1 Mathematics

This is a list of model equations sorted by their characteristics with hypertext links for more details.

III.2 Quantities

This is a list of model quantities sorted by their characteristics with hypertext links for more details.

III.2.1 Input

III.2.2 Output

IV. References

Brooks, R.H., Corey, A.T., 1964.Hydraulic properties of porous media.
Hydrology Paper 3, Colorado State University, Fort Collins, Colorado, pp. 22-27.

Burdine, N.T., 1953.Relative permeability calculation from size distribution data.
Trans. AIME 198, 71-78.

Campbell, G.S., 1985.Soil physics with BASIC: Transport Models for Soil-Plant SystemsElsevier, Amsterdam.

Diekkrüger, B., Aming, M., 1994. Simulation of water fluxes using different methods for estimating soil parameters
Modeling of Geo-Biosphere Processe, im Druck.

Richter, O., Nörtershenger, P., Diekkrüger, B., 1992. Modeling reactions and movment of organic chemicals in soils by coupling of biological and physical processes
Modeling of Geo-Biosphere Processes 1, S. 95-114.

Schröder, U., Richter, O., 1993. Parameter estimation in plant growth models in different levels of aggregation
Modeling of Geo-Biosphere Processes 2, S. 211-226.

Richter, O., Schröder, U., Lenz, F., 1991. A new model for plant growth
Gartenbauwissenschaften 56, S. 99-106.

van Genuchten, M.T., 1980.A closed form equation for predicting the hydraulic conductivity of unsaturated soils.
Soil Science Society of America Journal 44, 892-898.

V. Further information in the World-Wide-Web

VI. Additional remarks

Additional information
Last review of this document by: T. GabeleNov 21th 1997
Status of the document:
last modified by Tobias Gabele Tue May 18 08:23:01 CEST 2004

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