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Article

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

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College of Forestry, Nanjing Forestry University, Nanjing 210000, China
2
Faculty of Information Technology, Nanjing Forest Police College, Nanjing 210000, China
3
Jialin System Engineering Co., Ltd., Nanjing 210000, China
4
Jiangsu Surveying and Design Institute of Water Resources Co., Ltd., Yangzhou 225000, China
*
Author to whom correspondence should be addressed.
Academic Editor: Renato Morbidelli
Water 2021, 13(10), 1338; https://doi.org/10.3390/w13101338
Received: 15 April 2021 / Revised: 7 May 2021 / Accepted: 8 May 2021 / Published: 11 May 2021
(This article belongs to the Section Water Resources Management, Policy and Governance)
[Background] The key to integrated watershed management is to take simultaneous account of environmental, economic, and social development goals; hence, a multi-objective decision making approach is required. However, our understanding and application of multi-objective decision making in watershed management remains limited. [Objective] The objective of this study was to develop a multi-objective decision making system (MDMS) that could simultaneously handle multiple problems and objectives in a small watershed based on the relationships among land, water and economy. [Methods] The MDMS was coupled with the watershed hydrological model and economic benefit evaluation model to comprehensively simulate the watershed operational process, and established a multi-objective function to minimize sediment, nitrogen, and phosphorus outputs, while maximizing the economic benefits for integrated watershed management. The MDMS also utilized an improved meta-heuristic algorithm to optimize the agricultural land use structure of the small watershed to obtain the best integrated management plan at the small watershed scale. [Results] We found that the MDMS achieved seamless connections between automatic updating, analysis, and the optimization of land use structures in the iterative process, and successfully obtained an optimal scheme from a large number of agricultural land use structure alternatives, with particularly high time efficiencies. [Conclusions] Overall, the MDMS effectively controlled the negative impacts of crop planting on the environment, and simultaneously considered the economic benefits, which might assist managers in arriving at efficient scientific decisions toward the integrated management of small agricultural watersheds. View Full-Text
Keywords: small agricultural watershed; land use structure; multi-objective; Tabu Search; optimization small agricultural watershed; land use structure; multi-objective; Tabu Search; optimization
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MDPI and ACS Style

Zhang, S.; Zhang, J.; Meng, M.; Chen, P.; Liu, X.; Liu, G.; Gu, Z. A Multi-Objective Decision Making System (MDMS) for a Small Agricultural Watershed Based on Meta-Heuristic Optimization Coupling Simulation. Water 2021, 13, 1338. https://doi.org/10.3390/w13101338

AMA Style

Zhang S, Zhang J, Meng M, Chen P, Liu X, Liu G, Gu Z. A Multi-Objective Decision Making System (MDMS) for a Small Agricultural Watershed Based on Meta-Heuristic Optimization Coupling Simulation. Water. 2021; 13(10):1338. https://doi.org/10.3390/w13101338

Chicago/Turabian Style

Zhang, Shuifeng, Jinchi Zhang, Miaojing Meng, Peixian Chen, Xin Liu, Guoliang Liu, and Zheyan Gu. 2021. "A Multi-Objective Decision Making System (MDMS) for a Small Agricultural Watershed Based on Meta-Heuristic Optimization Coupling Simulation" Water 13, no. 10: 1338. https://doi.org/10.3390/w13101338

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