TWO-STAGE LAND USE OPTIMIZATION FOR A FOOD-ENERGY-WATER NEXUS SYSTEM: A CASE STUDY IN TEXAS EDWARDS REGION
Additional Document Info
2019 Elsevier B.V. Efficient land use planning and scheduling in Food-Energy-Water Nexus (FEW-N) related systems is a complicated decision-making problem with resource competitions and conflicting objectives. Systematic thinking based on FEW-N is a necessity for modeling and optimization of the systems. However, challenges arise in making decisions while encountering conflicting objectives, multi-scale and multi-period problems, and multiple stakeholders. To address these challenges, we developed a generic optimization-based land allocation approach, which provides i) a composite FEW-N metric to help solve the multi-objective optimization problem and carry out assessments, and ii) a two-stage decomposition strategy to solve the multi-scale and multi-period planning and scheduling problem. The developed strategy was applied in a case study within the Texas Edwards Region. Computational results indicate that the approach can provide a comprehensive FEW-N metric to select strategies for optimal land allocation and limit stresses in the FEW-N, and achieve trade-off solutions for the multi-scale and multi-period FEW land use systems.