1. General Model Information

Name: Carbon and Nitrogen Dynamics in soils

Acronym: CANDY


Main medium: terrestrial
Main subject: biogeochemistry
Organization level: ecosystem
Type of model: not specified (1D)
Main application:
Keywords: nutrient cycles, soil organic matter, decomposition, soil moisture, soil temperature, nitrogen, C/N ratio

Contact:

Dr. Uwe Franko
UFZ-Leipzig-Halle,
Sektion Bodenforschung,
Hallesche Str. 44,
D-06246 Bad Lauchstadt,
Germany

Telephone: +49 34635 73222
FAX: +49 34635 73288

Email: UFRANKO@BDF.UFZ.DE

Author(s):

Abstract:

a) Description of the decomposition of plant and animal debris

Decomposition of plant and animal debris described by a single pool obtained by fitting C release in an incubation experiment

b) Description of the decomposition of soil organic matter

Decomposition of soil organic matter described by multiple pools as follows:

c) Factors assumed to affect organic matter decomposition

d) Soil layers used in the model

The model divides the soil into 20 layers as follows:

II. Technical Information

II.1 Executables:

Operating System(s): IBM compatible PC 286 The model is available - contact the author

II.2 Source-code:

Programming Language(s):

II.3 Manuals:


III. Mathematical Information

III.1 Mathematics III.2 Quantities

III.2.1 Input

View Input data requirements of CANDY in comparison to other Soil Organic Matter models: These seven tables can be downloaded in Postscript Format

III.2.2 Output

View output data of CANDY in comparison to other SOM - Models:

IV. References

Franko, U. (1990) C- und N-Dynamik beim Umsatz organischer Substanzen in Boden. Tagungsbericht AdL der DDR,295, Berlin: 13-26
Franko, U. (1992) Simulation und Prognose der OS-Dynamik. Tag. Ber. zum Symposium Dauerfeldversuche und Närstoffdynamik, Leipzig, S: 125-130.
Franko, U. & Ruhlemann, J. (19??) Simulation der C- und N-Dynamik eines gemüsebaulich genutzen Sandbodens. Gartenbauwissenschaften, 56(4)S: 174-179.
Oelschagel, B. (1995) A method for downscaling climate model calculation by a statistical weather generator. Ecol. Model. 82: 199-204.
Franko, U., Oelschlagel, B. & Schenk, S. (1995) Modellierung von Bodenpozessen in Agrarlandschaften zur Untersuchung der Auswirkungen möglicher Klimaveränderungen. UFZ-Bericht 3/1995.
Franko, U., Oelschlagel, B. & Schenk, S. (1995) Simulation of temperature-, water-, and nitrogen dynamics using the Model CANDY. Ecol. Model. 81: 213-222.

V. Further information in the World-Wide-Web

The official GCTE Soil Organic Matter Network Database

VI. Additional remarks


Information and remarks about the application


Last update of this document by Tobias Gabele : 20. 06. 1997 Status of the document: -


II.4 Data:



III. Mathematical Information


III.1 Mathematics


III.2 Quantities


III.2.1 Input

View Input data requirements of CANDY in comparison to other Soil Organic Matter models:
These seven tables can be downloaded in Postscript Format

III.2.2 Output

View output data of CANDY in comparison to other SOM - Models:

IV. References

Franko, U. (1990) C- und N-Dynamik beim Umsatz organischer Substanzen in Boden. Tagungsbericht AdL der DDR,295, Berlin: 13-26
Franko, U. (1992) Simulation und Prognose der OS-Dynamik. Tag. Ber. zum Symposium Dauerfeldversuche und Närstoffdynamik, Leipzig, S: 125-130.
Franko, U. & Ruhlemann, J. (19??) Simulation der C- und N-Dynamik eines gemuesebaulich genutzen Sandbodens. Gartenbauwissenschaften, 56(4)S: 174-179.
Oelschagel, B. (1995) A method for downscaling climate model calculation by a statistical weather generator. Ecol. Model. 82: 199-204.
Franko, U., Oelschlagel, B. & Schenk, S. (1995) Modellierung von Bodenpozessen in Agrarlandschaften zur Untersuchung der Auswirkungen moeglicher Klimaveraenderungen. UFZ-Bericht 3/1995.
Franko, U., Oelschlagel, B. & Schenk, S. (1995) Simulation of temperature-, water-, and nitrogen dynamics using the Model CANDY.
Ecol. Model. 81: 213-222.
Ramsbeck M.; Franko U.; Steinhardt U.; Kure H. (ed.); Thysen I. (ed.); Kristensen A.R. 1997. Modeling of lysimeter data using the simulation model candy to interpret water and nitrogen flow. Proceedings First European Conference for Information Technology in Agriculture, Copenhagen, Denmark, 15-18 June 1997. 1997, 393-396; 3 ref..
Franko U.; Crocker G.J.; Grace P.R.; Klir J.; Korschens M.; Poulton P.R.; Richter D.D.; Smith P. (ed.); Powlson D.S. (ed.); Smith J.U. (ed.); Elliott E.T. 1997. Simulating trends in soil organic carbon in long-term experiments using the CANDY model. Special Issue: evaluation and comparison of soil organic matter models.Geoderma. 1997, 81: 1-2, 109-120; 11 ref..
Smith P.; Smith J.U.; Powlson D.S.; McGill W.B.; Arah J.R.M.; Chertov O.G.; Coleman K.; Franko U.; Frolking S.; Jenkinson D.S.; Jensen L.S.; Kelly R.H.; Klein-Gunnewiek H.; Komarov A.S.; Li C.; Molina J.A.E.; Mueller T.; Parton W.J.; Thornley J.H.M.; Whitmore A.P.; Smith P. (ed.); Powlson D.S. (ed.); Smith J.U. (ed.); Elliott E.T. 1997. A comparison of the performance of nine soil organic matter models using datasets from seven long-term experiments. Special Issue: evaluation and comparison of soil organic matter models.Geoderma. 1997, 81: 1-2, 153-225; 78 ref..


V. Further information in the World-Wide-Web

The official GCTE Soil Organic Matter Network Database


VI. Additional remarks


Last review of this document by: Tobias Gabele : 20. 06. 1997 -
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:40 CEST 2002

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