ارزیابی چرخۀ حیات تولید پنبه در استان گلستان مبتنی بر تولید زیست‌توده، انرژی، و کسب درآمد

خجسته پور, مهدی; طاهری راد, علیرضا; نیکخواه, امین

doi:10.22059/ijbse.2015.55667

ارزیابی چرخۀ حیات تولید پنبه در استان گلستان مبتنی بر تولید زیست‌توده، انرژی، و کسب درآمد

نوع مقاله : مقاله پژوهشی

نویسندگان

¹ دانشیار گروه مهندسی بیوسیستم، دانشگاه فردوسی مشهد

² دانشجوی کارشناسی ارشد مکانیزاسیون، گروه مهندسی بیوسیستم، دانشگاه فردوسی مشهد

10.22059/ijbse.2015.55667

چکیده

هدف از این مطالعه بررسی تأثیرات زیست‌محیطی تولید پنبه در استان گلستان با روش ارزیابی چرخۀ حیات بود. اطلاعات اولیه از پنبه‌کاران گلستانی از طریق پرسشنامه و به‌صورت حضوری در سال زراعی 91-1390 جمع‌آوری شد. پرسشنامه‌ها حاوی سؤالاتی دربارۀ میزان مصرف نهاده‌های گوناگون و عملکرد پنبه در منطقه بودند. تأثیرات زیست‌محیطی براساس سه واحد کارکردی تولید یک تن زیست‌توده، تولید 1000 مگاژول انرژی، و کسب ده‌ هزار تومان درآمد خالص بررسی شدند. تأثیرات زیست‌محیطی در قالب هفت گروه‌ تأثیر گرمایش جهانی، اسیدیته، اوتریفیکاسیون خشکی، تخلیۀ منابع فسیلی، تخلیۀ منابع آبی، تخلیۀ منابع فسفات، و تخلیۀ منابع پتاس بررسی شدند. نتایج نشان داد که اوتریفیکاسیون خشکی و تخلیۀ منابع فسیلی به ترتیب بیش‌ترین پتانسیل آسیب به محیط زیست را در قالب گروه‌های تأثیر زیست‌محیطی و تخلیۀ منابع داشتند. شاخص زیست‌محیطی (EcoX) برای تولید یک تن زیست‌توده، تولید 1000 مگاژول انرژی، و کسب ده هزار تومان درآمد خالص به ترتیب 832/0، 048/0، و 036/0 محاسبه شد. شاخص تخلیۀ منابع (RDI) نیز برای تولید این سه واحد کارکردی به ترتیب 825/6، 396/0، و 296/0 به‌دست آمد.

کلیدواژه‌ها

20.1001.1.20084803.1394.46.2.2.8

موضوعات

مکانیزاسیون

عنوان مقاله [English]

Life cycle assessment of cotton production in Golestan province based on the production of biomass, energy and net income

نویسندگان [English]

Mehdi Khojastehpour ¹
Alireza Taheri-Rad ²
Amin Nikkhah ²

¹ Associate Professor, Department of Biosystems Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

² MSc Student of Mechanization, Department of Biosystems Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

چکیده [English]

The main objective of this study was to investigate the environmental impacts of cotton production in Golestan province of Iran using life cycle assessment methodology. The data used in the study were obtained from cotton farmers with face-to-face questionnaire method during 2011-2012. The questionnaires included total inputs of cotton production in the region and yield weight. Environmental impacts based on three functional units (FU) including: the production of one ton biomass, generation of 1000 MJ energy and 10000 Toman net income were investigated. Environmental impacts were evaluated into seven impact categories including global warming, acidification, terrestrial eutrophication, land use, depletion of water resources, depletion of fossil resources and depletion of phosphate and potash resources. Results showed that the terrestrial eutrophication and depletion of fossil resources in terms of environmental index (EcoX) and resource depletion index (RDI) had the highest potential environmental impacts. EcoX for one ton production of cotton, generation of 1000 MJ energy and 10000 Toman net income were calculated as 0.832, 0.048 and 0.036, respectively. RDI for these three functional units were 6.825, 0.396 and 0.296, respectively.

کلیدواژه‌ها [English]

environment
Global warming
Net income
Pollution
Resource depletion

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