A Multi-Objective Decision Making System (MDMS) for a Small Agricultural Watershed Based on Meta-Heuristic Optimization Coupling Simulation

[Background] The key to integrated watershed management is take simultaneous account of environmental, economic, and social development goals; hence, a multi-objective decision making approach required. However, our understanding application in remains limited. [Objective] objective this study was develop system (MDMS) that could simultaneously handle multiple problems objectives small based on the relationships among land, water economy. [Methods] MDMS coupled with hydrological model economic benefit evaluation comprehensively simulate operational process, established function minimize sediment, nitrogen, phosphorus outputs, while maximizing benefits for management. also utilized an improved meta-heuristic algorithm optimize agricultural land use structure obtain best plan at scale. [Results] We found achieved seamless connections between automatic updating, analysis, optimization structures iterative successfully obtained optimal scheme from large number alternatives, particularly high time efficiencies. [Conclusions] Overall, effectively controlled negative impacts crop planting environment, considered benefits, which might assist managers arriving efficient scientific decisions toward watersheds.