A System Dynamics Analysis of Factors Affecting the Sustainability of Wheat Production System

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AMIRI ALIREZA; ZARE MEHRJERDI YAHIA; Jalalimanesh Ammar; SADEGHEIH AHMAD

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Journal: PRODUCTION AND OPERATIONS MANAGEMENT Year:2020 | Volume:11 | Issue:2 (21) Page(s): 1-26

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Title

A System Dynamics Analysis of Factors Affecting the Sustainability of Wheat Production System

Author(s)

AMIRI ALIREZA | ZARE MEHRJERDI YAHIA | Jalalimanesh Ammar | SADEGHEIH AHMAD | Issue Writer Certificate

Keywords

Food systemQ1

System sustainabilityQ1

SimulationQ1

System dynamicsQ1

Wheat productionQ2

Abstract

Purpose: The problem of Wheat production sustainability is an important issue that quarantines the availability of people's food at present as well as the nutrition of the next generations. Food is the essential human's need and has been used from human beings' creation until the end of its life. The existence of systems satisfying such requirements and the sustainability of them is always essential for the survival of the human race. Therefore, this study aims to investigate the sustainability of the Wheat production system in Iran. Design/methodology/approach: In this research, using the System dynamics approach, the sustainability of Iran's Wheat production has been studied. The literature review section of this paper concentrates on several research papers in this context, considering the systems dynamics approach. In this study, an introduction has been expressed to the human's need for food and the position of wheat as the primary source of food in meeting this need in Iran. System dynamics is one of the most commonly used approaches for modeling and simulating environmental and socio-economic phenomena. The Wheat production system covering environmental, economic, and social subsystems has been taken into consideration as a case to model the problem. Key factors affecting Wheat production have been collected based on a literature review. 50 years historical data for essential factors such as rain, wheat harvesting area, agricultural technology, fertilizers, population, wheat imports, and exports have been used in modeling and hence in the mathematical formulation of the problem. Based on the history of these factors and related research, the dynamic hypothesis of the problem has been defined, and the causal diagrams of the relationships between critical factors and the Wheat production have been developed. After modeling and formulation, the problem has been simulated and validated. Then, various scenarios have been proposed and simulated for the sustainability of the Wheat production system, and the results have been addressed. The scenarios for changing the machinery level, reducing chemical fertilizer's use, increasing organic fertilizer use, and rainfall fluctuations have been simulated one by one, and their combinations have been simulated, respectively. Findings: The Simulation results indicated that the production of wheat is highly sensitive to precipitation and technology levels in the field. Therefore, it is better to focus more on such two factors and to have more concentration on them. Since water is the most crucial resource in Wheat production, it would be better to concentrate the research and development efforts on water management technologies in the field. Due to the high sensitivity of Wheat production to precipitation fluctuations and technology levels, more investment and better plans should be provided for the better and more efficient use of the two sources. Research limitations/implications: While numerous factors such as pesticides, seeds, planting and harvesting, irrigation methods, management, human resources, and related requirements affect Wheat production, due to the large scale of this research, only the most critical factors were selected for the study. Examining the behavior of each of the above-mentioned factors will result in a better awareness of the existing reality and better planning for Wheat production. Practical implications: The Wheat production system includes environmental, economic, and social subsystems as well as numerous and complex relationships between the human and the environment. The systemic nature of such interdependencies and interactions needs systematic approaches and integrated assessment tools. Identifying and modeling correctly the intrinsic characteristics of the Wheat production system assure preserves or increases its essential results over the time and help governmental organizations and institutes to move towards sustainable development and to set policies that encourage positive changes. Social implications: Since the proposed model is expected to help the government and agricultural institutions in planning Wheat production efficiently, it will make the country move towards selfsufficiency in Wheat production, which in turn results in psychological and social security in terms of food and increases social sustainability. Originality/value: To the best knowledge of the authors, there is no comprehensive investigation on the sustainability of Wheat production in Iran. The literature review indicates that the agricultural context is almost limited to a particular zone and this problem has not been addressed on the national scale. Thus, this is the first research that examines such a problem.

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APA: Copy

AMIRI, ALIREZA, ZARE MEHRJERDI, YAHIA, Jalalimanesh, Ammar, & SADEGHEIH, AHMAD. (2020). A System Dynamics Analysis of Factors Affecting the Sustainability of Wheat Production System. PRODUCTION AND OPERATIONS MANAGEMENT, 11(2 (21) ), 1-26. SID. https://sid.ir/paper/391001/en

Vancouver: Copy

AMIRI ALIREZA, ZARE MEHRJERDI YAHIA, Jalalimanesh Ammar, SADEGHEIH AHMAD. A System Dynamics Analysis of Factors Affecting the Sustainability of Wheat Production System. PRODUCTION AND OPERATIONS MANAGEMENT[Internet]. 2020;11(2 (21) ):1-26. Available from: https://sid.ir/paper/391001/en

IEEE: Copy

ALIREZA AMIRI, YAHIA ZARE MEHRJERDI, Ammar Jalalimanesh, and AHMAD SADEGHEIH, “A System Dynamics Analysis of Factors Affecting the Sustainability of Wheat Production System,” PRODUCTION AND OPERATIONS MANAGEMENT, vol. 11, no. 2 (21) , pp. 1–26, 2020, [Online]. Available: https://sid.ir/paper/391001/en

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