بررسی الگوی مصرف انرژی، آنالیز حساسیت و عملکرد اقتصادی تولید آلوی بخارا در شهرستان خوانسار

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار، گروه مهندسی کشاورزی، دانشگاه پیام نور، تهران، ایران

2 دانشیار،گروه مهندسی مکانیک ماشینهای کشاورزی، دانشگاه تهران، کرج، ایران

چکیده

هدف از این پژوهش تعیین الگوی مصرف انرژی و بررسی رابطه بین انرژی ورودی و عملکرد، هزینه­ها و درآمد برای تولید آلو در شهرستان خوانسار می­باشد. در این تحقیق، اطلاعات مورد نیاز به وسیله پرسش‌نامه و مصاحبه حضوری با باغ داران جمع آوری شد. نهاده­های مورد بررسی شامل نیروی کارگری، ماشین، سوخت دیزل، کودهای شیمیایی و آلی، آب آبیاری و الکتریسیته بودند. برای بررسی اثر انرژ­­ی­های ورودی بر عملکرد، از مدل کاب داگلاس و تحلیل حساسیت استفاده شد. در این تحقیق کل انرژی مصرفی برای تولید محصول آلو 19/56721 مگا ژول ­در هکتار به­دست آمد و نهاده برق با 25/66  درصد،  پرمصرف ترین نهاده در تولید آلو بود. سهم انرژیهای تجدیدپذیر برای تولید این محصول 36/3 درصد بود. نتایج حاصل از تابع کاب داگلاس نشان داد که انرژی نهاده­های نیروی انسانی، برق و کود شیمیایی تاثیر معنی­داری بر روی عملکرد داشتند. همچنین نتایج حاصل از تحلیل حساسیت نشان داد که از بین انرژی­های ورودی، انرژی نیروی انسانی بیشترین مقدار بهره‌وری فیزیکی حاشیه­ای (MPP) را به خود اختصاص داد، همچنین انرژی نیروی انسانی بیشترین اثر (87/0) در مقایسه با سایر منابع در تولید آلو داشت. بازده انرژی برای تولید آلو 46/0 به­دست آمد و نیروی کارگری با 75/70 درصد، بیشترین هزینه تولید را به خود اختصاص داد. همچنین نسبت فایده به هزینه در تولید محصولات آلو، 9/1 به­دست آمد.

کلیدواژه‌ها


عنوان مقاله [English]

Investigating the Pattern of Energy Consumption, Sensitivity Analysis and Economic Performance of Plum Production in Khansar Township, Isfahan, Iran

نویسندگان [English]

  • golmohammad khoobbakht 1
  • Asadollah Akram 2
1 Assistant Professor, Department of Agricultural Engineering, Payame Noor University, Tehran, Iran
2 Department of Agricultural Machinery Engineering, Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj, Iran
چکیده [English]

The purposes of this study were to determine energy use pattern and study the relationships between energy inputs and yield, costs and revenue for plum production in Khansar Township. In this research, the required information was collected by questionnaire and face-to-face interview with gardeners. The inputs included labor, machinery, diesel fuel, chemical and organic fertilizers, irrigation water and electricity. The Cobb-Douglas model and sensitivity analysis were used to investigate the effect of input energy on performance. In this study the total energy used to produce plum was 56721.19 MJ/ha, and the electricity input with 66.25% was as the most common source of energy in plum production. The share of renewable energy for this product was 3.36%. The results of the Cobb Douglas function showed that the energy inputs of human labor, electricity, chemical fertilizer had a significant effect on performance. The results of sensitivity analysis showed that among the energy inputs, human labor energy had the highest marginal physical productivity (MPP) and the energy of human labor had the highest effect (0.87) compared with other sources in the production of plums. Energy efficiency for plum production was 0.46 and the human labor accounted for the highest production cost with 70.75%. Also, the benefit to cost ratio in the production of plum was calculated as 1.9.

کلیدواژه‌ها [English]

  • Input energy
  • Cobb Douglas
  • Energy Efficiency
  • Cost
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