Article (Scientific journals)
Constraints in multi-objective optimization of land use allocation – Repair or penalize?
Strauch, Michael; Cord, Anna F.; Pätzold, Carola et al.
2019In Environmental Modelling and Software, 118, p. 241 - 251
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Abstract :
[en] Combining simulation models and multi-objective optimization can help solving complex land use allocation problems by considering multiple, often competing demands on landscapes, such as agriculture, (drinking) water provision, or biodiversity conservation. The search for optimal land use allocations has to result in feasible solutions satisfying “real-world” constraints. We here introduce a generic and readily applicable tool to integrate user-specific spatial models (e.g. assessing different ecosystem services) for a Constrained Multi-objective Optimization of Land use Allocation (CoMOLA). The tool can handle basic land use conversion constraints by either a newly and specifically developed method to repair infeasible solutions or by penalizing constraint violation. CoMOLA was systematically tested for different levels of complexity using a virtual landscape and simple ecosystem service and biodiversity models. Our study shows that using repair mechanisms seems to be more effective in exploring the feasible solution space while penalizing constraint violation likely results in infeasible solutions.
Research center :
Luxembourg Centre for Socio-Environmental Systems (LCSES)
Disciplines :
Mathematics
Environmental sciences & ecology
Author, co-author :
Strauch, Michael
Cord, Anna F.
Pätzold, Carola
Lautenbach, Sven
Kaim, Andrea
Schweitzer, Christian
SEPPELT, Ralf  ;  University of Luxembourg > Luxembourg Centre for Socio-Environmental Systems (LCSES)
Volk, Martin
External co-authors :
yes
Language :
English
Title :
Constraints in multi-objective optimization of land use allocation – Repair or penalize?
Publication date :
2019
Journal title :
Environmental Modelling and Software
ISSN :
1364-8152
Publisher :
Elsevier, Nl
Volume :
118
Pages :
241 - 251
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBilu :
since 01 November 2025

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