MASSAI: Multi-agent system for simulating sustainable agricultural intensification of smallholder farms in Africa

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dc.creatorMponela, Powell
dc.creatorLe, Quang Bao
dc.creatorSnapp, Sieglinde
dc.creatorVillamor, Grace B.
dc.creatorTamene, Lulseged D.
dc.creatorBorgemeister, Christian
dc.date2023-12
dc.date2023-11-09T14:55:19Z
dc.date2023-11-09T14:55:19Z
dc.date.accessioned2026-06-27T14:24:06Z
dc.descriptionThe research and development needed to achieve sustainability of African smallholder agricultural and natural systems has led to a wide array of theoretical frameworks for conceptualising socioecological processes and functions. However, there are few analytical tools for spatio-temporal empirical approaches to implement use cases, which is a prerequisite to understand the performance of smallholder farms in the real world. This study builds a multi-agent system (MAS) to operationalise the Sustainable Agricultural Intensification (SAI) theoretical framework (MASSAI). This is an essential tool for spatio-temporal simulation of farm productivity to evaluate sustainability trends into the future at fine scale of a managed plot. MASSAI evaluates dynamic nutrient transfer using smallholder nutrient monitoring functions which have been calibrated with parameters from Malawi and the region. It integrates two modules: the Environmental (EM) and Behavioural (BM) ones. • The EM assess dynamic natural nutrient inputs (sedimentation and atmospheric deposition) and outputs (leaching, erosion and gaseous loses) as a product of bioclimatic factors and land use activities. • An integrated BM assess the impact of farmer decisions which influence farm-level inputs (fertilizer, manure, biological N fixation) and outputs (crop yields and associated grain). • A use case of input subsidies, common in Africa, markedly influence fertilizer access and the impact of different policy scenarios on decision-making, crop productivity, and nutrient balance are simulated. This is of use for empirical analysis smallholder's sustainability trajectories given the pro-poor development policy support.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/132879
dc.identifier.urihttp://hdl.handle.net/123456789/78615
dc.languageen
dc.publisherElsevier
dc.rightsOpen Access
dc.sourceMponela, P., Le, Q. B., Snapp, S., Villamor, G. B., Tamene, L., & Borgemeister, C. (2023). MASSAI: Multi-agent system for simulating sustainable agricultural intensification of smallholder farms in Africa. In MethodsX (Vol. 11, p. 102467). Elsevier BV. https://doi.org/10.1016/j.mex.2023.102467
dc.subjectsustainability
dc.subjectproductivity
dc.subjectsimulation models
dc.subjectsubsidies
dc.subjectnutrient balance
dc.subjectbehavioural responses
dc.subjectagent-based models
dc.subjectmulti-agent systems
dc.subjectmaize
dc.subjectfarm productivity
dc.subjectre-orienting farm input subsidy
dc.subjectfarmer behaviour
dc.titleMASSAI: Multi-agent system for simulating sustainable agricultural intensification of smallholder farms in Africa
dc.typeJournal Article

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Centro Internacional para la Investigación Agrícola en las Áreas Secas (ICARDA)