ارزیابی جریان انرژی و اثرات زیست‌محیطی تولید گلخانه‌ای گیاهان دارویی با رویکرد ارزیابی چرخه زندگی مطالعه موردی گیاه آلوئه‌ورا

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار، گروه مهندسی ماشین‌های کشاورزی، دانشکده مهندسی و فناوری کشاورزی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران

2 دانشجوی دوره دکتری،گروه مهندسی ماشین های کشاورزی،دانشکده مهندسی و فناوری کشاورزی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران

چکیده

در این مطالعه تولید برگ آلوئه­ورا گلخانه­ای در استان خراسان­رضوی از نظر الگوی مصرف انرژی و تبعات زیست­محیطی ناشی از مصرف نهاده­های کشاورزی مورد ارزیابی و تحلیل قرار گرفت. بر اساس نتایج، کل انرژی مصرفی در تولید برگ آلوئه­ورا برابر 19/102825 مگاژول بر تن تعیین شد. نتایج تحلیل انرژی نشان داد تأمین گرمایش و سازه گلخانه بیش از 90 درصد انرژی مصرفی را به خود اختصاص داده‌اند. بر­اساس نتایج ارزیابی چرخه­ زندگی، مقدار کل آلاینده‌های زیست‌محیطی برای تولید گلخانه­ای یک تن برگ آلوئه­ورا برابر با (pPt ton-1) 26/2331 تعیین شد که سهم فرآیندهای تولید نهاده در خارج از گلخانه و مصرف نهاده‌ در داخل گلخانه به ترتیب (pPt ton-1) 63/1744 و (pPt ton-1) 63/586 محاسبه شد. نتایج نشان داد گروه‌های اثر مسمومیت انسان­ها و مسمومیت آب­های آزاد به ترتیب با شاخص آلایندگی (pPt ton-1) 57/795 و (pPt ton-1) 538/608، بیشترین سهم را بر میزان آسیب زیست­محیطی کل داشته­اند.

کلیدواژه‌ها


عنوان مقاله [English]

Assessment of the energy flow and environmental impacts of greenhouse production of medicinal plants with life cycle assessment approach- Case study of Aloe vera

نویسندگان [English]

  • Majid Khanali 1
  • homa hosseinzadeh-bandbafha 2
1 Assistant Professor, Department of Agricultural Engineering, Faculty of Engineering and Technology, College of Agriculture and Natural Resources, Tehran University
2 Department of Agricultural Machinery, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources, Tehran University
چکیده [English]

In this study the production of greenhouse Aloe vera leaves in Khorasan Razavi province was evaluated and analyzed in terms of energy consumption pattern and environmental consequences due to the use of agricultural inputs. According to the results, total energy consumption in production of Aloe vera leaves was evaluated as 102825.19 MJ ton-1. The results of energy analysis showed that the heat supply and greenhouse structures were consumed more than 90 percent of total energy consumption. Based on the results of life cycle assessment, the total amount of environmental impacts for greenhouse production of one ton of Aloe vera leaves was determined as 2331.26 pPt ton-1, in which the contributions of the input production outside the greenhouse and the input consumption inside the greenhouse were 1744.63 and 586.63 pPt ton-1, respectively. The results showed that the impact categories of human toxicity and marine aquatic ecotoxicity with environmental impacts of 621.043 and 608.538 pPt ton-1, respectively, had the highest share in total environmental impact.

کلیدواژه‌ها [English]

  • Aloe Vera
  • Energy
  • Greenhouse
  • Life Cycle Assessment
  • medicinal plants
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