تولید محصولات زراعی استان البرز بر اساس مفهوم آب مجازی و مدیریت آن با استفاده از مدل AquaCrop

نوع مقاله : پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد مدریت منابع آب، گروه مهندسی عمران، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران

2 استادیار، گروه علوم و مهندسی آب، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران

3 استادیار پژوهش، مؤسسۀ تحقیقات فنی و مهندسی کشاورزی، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران

چکیده

استان البرز به عنوان یکی از قطب‏های کشاورزی در کشور محسوب می‏شود که سالیانه بخش اعظمی از منابع آب موجود در این استان به بخش کشاورزی اختصاص می‏یابد. مفهوم آب مجازی به عنوان ابزاری برای بررسی وضعیت تولید محصولات کشاورزی در هر منطقه براساس میزان مصرف آب به حساب می‏آید. به همین دلیل، در پژوهش حاضر، با استفاده از داده‏های برداشت‌شده طی ده سال اخیر (1389-1399) میزان تجارت آب مجازی در استان البرز بررسی شد. نتایج نشان داد شاخص کم‌آبی استان البرز 6/0 است. شاخص خودکفایی این استان نسبت به واردات آب مجازی 100 است. بنابراین، در این استان بیشتر محصولات کشاورزی صادر می‌شود و استان البرز نسبت به تولید محصولات کشاورزی و واردات آب مجازی خودکفا است. برای بهبود وضعیت آب استان البرز، سناریوهای مختلفی با استفاده از مدل AquaCrop بررسی شد و مقدار بهینۀ آب برای آبیاری هر محصول زراعی تعیین شد. با اصلاح وضعیت آبیاری موجود، آب مجازی صادر‌شده برای بیشتر گیاهان زراعی کاهش یافت. بیشترین کاهش صادرات آب مجازی برای جو، کاهو و کرفس، سیب‏زمینی و کلم به‌ترتیب با مقادیر 6/1، 97/0، 16/0 و 13/0 میلیون مترمکعب در سال به دست آمد. همچنین، با اعمال سناریوهای بهینۀ آبیاری، شاخص کم‌آبی استان البرز به 54/0 کاهش یافت که نسبت به وضعیت فعلی 06/0 کمتر بود.

کلیدواژه‌ها

عنوان مقاله [English]

Crop Production of Alborz Province based on the Concept of Virtual Water and its Management it using AquaCrop Model

نویسندگان [English]

  • Mohammad Shirali 1
  • Alan Egdernezhad 2
  • Saloomeh Sepehri Sadeghiyan 3
1 M.Sc. Student, Department of Civil Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
2 Department of Water Sciences and Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
3 Assistant professor of Irrigation and Drainage Engineering, Agricultural Engineering Research Institute (AERI), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
چکیده [English]

Alborz province is considered as one of the most important agricultural regions in Iran that annually most of the water resources in this province are allocated to the agricultural sector. The concept of virtual water is considered as a tool to examine the status of agricultural production in each region based on water consumption. For this reason, in the present study, using the data collected during the last ten years (2011-2021), the amount of virtual water trade in Alborz province was investigated. The results showed that the water deficit index of Alborz province is 0.6. The water self-sufficiency index of this province in relation to the import of virtual water is 100. Therefore, in this province, mainly agricultural products are exported and this province is self-sufficient in producing agricultural products and importing virtual water. To improve the water situation of Alborz province, different scenarios were investigated using the AquaCrop model and the optimal amount of water for irrigation of each crop was determined. With the improvement of the existing irrigation situation, the virtual water exported to most crops decreased. The highest decrease in virtual water exports for barley, lettuce and celery, potatoes and cabbage was achieved with the values of 1.6, 0.97, 0.16 and 0.13 million cubic meters per year, respectively. Also, by applying optimal irrigation scenarios, the water shortage index of Alborz province decreased to 0.54, which was less than 0.06 compared to the current situation.

کلیدواژه‌ها [English]

  • Virtual Water
  • Water Deficit Index
  • Water Dependency
  • Water Self-sufficiency
  • AquaCrop

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  • Egdernezhad A, Ebrahimipak N, Tafteh A, Ahmadee M. Canola Irrigation Scheduling using AquaCrop Model in Qazvin Plain. Water Management in Agriculture. 2019: 5(2): 53-64. [Persian]
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اکوهیدرولوژی
دوره 9، شماره 1
فروردین 1401
صفحه 291-302

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سابقه مقاله

  • تاریخ دریافت: 01 آبان 1400
  • تاریخ بازنگری: 20 اسفند 1400
  • تاریخ پذیرش: 20 اسفند 1400

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