1. General Model Information
Name: LINTUL - Light INTerception and UtiLization simulator.
Main medium: terrestrial
Main subject: agriculture
Organization level: population
Type of model: compartment model
Keywords: crop, growth, light interception, light utilization, temperature-sum based
Dr. M. van Oijen.
Wageningen Agricultural University, Dept. Theoretical Production Ecology, P.O.Box 430, 6700 AK Wageningen, THE NETHERLANDS.
LINTUL is a simple general crop model, which simulates dry matter production as the result of light interception and utilization with a constant light use efficiency. Leaf area increase during the exponential phase is temperature-determined, and thereafter follows from dry matter allocation to leaves. Allocation functions depend on the temperature-sum. Leaf senescence also depends on the temperature-sum but is accelerated at overly high leaf area index. LINTUL simulates potential crop growth but extensions of the model dealing with drought, potato late blight and potato cyst nematodes have been developed already.
Purpose of the model:
Model parentage: None.
Source of the AbstractCAMASE Register of Agro-ecosystems Models
II. Technical Information
Operating System(s): Any computer that runs CSMP or similar language. Contract necessary: Costs: : Dfl. 70,=. Comments:
Programming Language(s): CSMP (but only few language-specific constructions).
III. Mathematical Information
Rate variables: Development, leaf area growth and senescence, dry matter production and partitioning to leaves, stems, roots and storage organs.
State variables: Temperature sum, leaf area, dry matter of leaves, stems, roots and storage organs.
2 Crop husbandry parameters, 9 crop specific parameters, 3 dry matter partitioning functions, 2 weather time courses. Input check in model: No.
Any variable required.
Basic spatial unit: Field.
Time interval of simulation: 1 day.
Oijen, M. van, 1992. Evaluation of breeding strategies for resistance and tolerance to late blight in potato by means of simulation. Netherland Journal of Plant Pathology 98: 3-11
Oijen, M. van, F.J. de Ruijter & R.J.F. van Haren, 1995. Modelling the interaction between potato crops and cyst nematodes. In: Haverkort, A.J. & D.K.L. MacKerrow (Eds.). Potato ecology and modelling of crops under conditions limiting growth. Kluwer, Dordrecht. 185-196
Spitters, C.J.T. & A.H.C.M. Schapendonk, 1990. Evaluation of breeding strategies for drought tolerance in potato by means of crop growth simulation. Plant and Soil 123: 193-203
V. Further information in the World-Wide-Web
VI. Additional remarks
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Status of the document:
last modified by
Joachim Benz Mon Jul 2 18:31:37 CEST 2007