4.6 Article

Environmental impact assessment and efficiency of cotton: the case of Northeast Iran

Journal

ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
Volume 25, Issue 9, Pages 10301-10321

Publisher

SPRINGER
DOI: 10.1007/s10668-022-02490-5

Keywords

Life cycle assessment; Data envelopment analysis; Environmental impact; Respiratory inorganics; Chemical fertilizers

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This study evaluated the environmental effects of cotton production in the South Khorasan Province of Iran using life cycle assessment (LCA) and data envelopment analysis (DEA). The findings revealed that respiratory inorganics, non-renewable energy, carcinogens, and global warming were the main environmental burdens of cotton production. Energy, on-system pollution, and waste played crucial roles in the environmental impacts of cotton processing. The study suggested improving farmers' knowledge to minimize the environmental impact of cotton production by optimizing the use of chemical fertilizers or substituting them with green fertilizers.
Cotton is one of the important crops that play an important role in creating a livelihood for rural people in many parts of Iran. Cotton production necessitates a large amount of resources (e.g., fossil energy and agrochemicals, all of which have the potential to damage the environment in various ways). The purpose of the current study was to evaluate the environmental effects of cotton production in the South Khorasan Province of Iran. For this purpose, life cycle assessment (LCA) and data envelopment analysis (DEA) techniques have been applied to investigate the environmental impacts of cotton production. LCA is a practical method to evaluate the environment on the product flow, in which all aspects of the product life cycle are examined by a comprehensive approach. Furthermore, combining the LCA method with other managerial strategies such as DEA could allow researchers to provide decision-makers with more practical and interpretable data. The findings of the efficiency test showed that the average technical efficiency, pure technical efficiency, and scale efficiency were 0.81, 0.92, and 0.87, respectively. Respiratory inorganics (i.e., respiratory effects resulting from winter smog caused by emissions of dust, sulfur, and nitrogen oxides to air) posed the greatest environmental burden in cotton production, followed by non-renewable energy, carcinogens, and global warming. In addition, the highest effects were on human health, and then, on resources and climate change. Energy, on-system pollution, and waste played a crucial role in the environmental impacts of cotton processing. This study suggests improving farmers' knowledge toward the optimum application of chemical fertilizers, or their substitution with green fertilizers, which reduces the environmental effect of growing cotton in the area.

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