4.5 Article

Exploring trade-offs in agro-ecological landscapes: Using a multi-objective land-use allocation model to support agroforestry research

Journal

BASIC AND APPLIED ECOLOGY
Volume 64, Issue -, Pages 103-119

Publisher

ELSEVIER GMBH
DOI: 10.1016/j.baae.2022.08.002

Keywords

Agroforestry; Decision-support tools; Ecosystem services; Integrated landscape management; Multi-objective optimization; Sim-ulation models

Categories

Funding

  1. German Research Foun-dation (DFG) [PA3162/1]

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This study evaluates a robust multi-objective optimization model using agroforestry as the background, which integrates uncertain ecological and socio-economic data. Through a case study in eastern Panama, it demonstrates how to assess the desirability of agroforestry as a component in landscape composition and how different objectives influence the optimal area share and type of agroforestry.
Finding the optimal land allocation for providing ecosystem services, conserving biodiversity and maintaining rural liveli-hoods is a key challenge of agricultural management and land-use planning. Agroforestry has been widely discussed as a sus-tainable land-use solution and as one strategy to improve the provision of multiple ecological and economic functions in agricultural landscapes. In this study, we use the backdrop of agroforestry research to evaluate a method from the multi-criteria decision analysis toolbox: robust multi-objective optimization. The key feature of this modelling approach is its capacity to integrate uncertain ecological and socio-economic data. We illustrate the optimization model with a case study from eastern Panama, showing how the model can bring together scientific and practical knowledge to provide potentially desirable land-scape compositions from the perspective of farmers, a public perspective, and a compromise solution. Example results of our case study show how to assess whether agroforestry is a desirable component in a landscape composition to satisfy multiple objectives of different interest groups. Furthermore, we use the model to demonstrate how different objectives influence the optimal area share and type of agroforestry. Due to its parsimonious nature, the model could be used as a starting point of an interactive co-learning process with decision-makers, researchers and other stakeholders. The model, however, is not yet suit-able for an exact prediction of future land-use dynamics, for questions of spatially explicit land-use configuration, studies going beyond the regional scale or for socio-economic interactions of agents. Therefore, we outline future research needs and recom-mendations for other types of models or hybrid approaches.(c) 2022 The Author(s). Published by Elsevier GmbH on behalf of Gesellschaft fur Okologie. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)

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