1. General Model Information

Name: Landscape Ecological Decision Support System

Acronym: LEDESS

Main medium: terrestrial
Main subject: landscape ecology,populationdynamics,agriculture,forestry
Organization level: Ecosystem, Landscape
Type of model: 2D, expert system
Main application: spatial planning, decision support
Keywords: spatial planning, dss, multiscale, landscape ecology


Wim C. Knol
P.O.Box 47, 6700 AA Wageningen, The Netherlands

Phone: +31 317 474385
Fax: +31 317 419000
email: w.c.knol@alterra.wag-ur.nl http://www.alterra.wageningen-ur.nl
Homepage: http://www.alterra.wageningen-ur.nl


W.C. Knol


The LEDESS model was developed as a regional GIS model end of the 80's for landscape ecological evaluation of scenarios. The model has evolved into a broad integrated DSS focussed on interactive landscape planning and evaluation. Now the planning process with all types of landuse and socio-economic modules are involved. Measures in the landscape or future land use is checked on abiotic suitability and valuable landscape patterns or socio-economical values. After choosing for the appropiate measures and future land use (targets) vegetation development in some time steps is calculated, based on the actual or changed abiotic conditions. Both vegetion structure and abiotic conditions (physiotopes) after time steps are input for calculation of habitats for 'keyspecies' (vertebrates). Some spatial conditions are used to calculate habitat patterns and size. In near future a meta population model will be linked to the habitat module. The dss is based on expert knowledge. For some areas a specific version of the model is made 'LEDESS rivers'

II. Technical Information

II.1 Executables:

Operating System(s): windows nt, win98
(Availability: please contact Wim C. Knol)

II.2 Source-code:

Programming Language(s): Delphi, Avenue (ArcView)

II.3 Manuals:

Technical manual LEDESS 2.0

II.4 Data:

GIS maps (grids or polygons)

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

ecotopes (vegetation structure; physiotopes) measures and targets (future landuse) landscape quality maps

III.2.2 Output

maps with vegetationstructure, physiotopes, habitat patterns, landscape patterns after t= 1,5,10,30 and 100 years

IV. References

V. Further information in the World-Wide-Web

VI. Additional remarks

Model can be used for integrated and interactive landscape planning an d evaluation at different scales.
Last review of this document by: : Thu Jul 6 18:26:58 2000
Status of the document: Contributed by Wim C. Knol
last modified by Tobias Gabele Wed Aug 21 21:44:45 CEST 2002

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