محاسبه‌ی ردپای آب مجازی و میزان کمبود آب محصولات اصلی دشت اردبیل

نوع مقاله : مقاله پژوهشی

نویسنده
جوانشیر عزیزی مبصر
گروه مهندسی آب دانشکده کشاورزی و منابع طبیعی، دانشگاه محقق اردبیلی، اردبیل، ایران
10.22034/wmji.2023.710723
چکیده
این تحقیق در دشت اردبیل باهدف بررسی وضعیت کمی و پایداری منابع مختلف تأمین نیاز آبی محصولات سیب‌زمینی، گندم، جو و یونجه انجام شد. نیاز آبی این محصولات به‌عنوان کشت‌های اصلی دشت با استفاده از نرم‌افزار CROPWAT تعیین شد. مؤلفه‌های مختلف رد پای آب مجازی شامل VWFblue، VWFgreen، VWFgrey و هم‌چنین شاخص‌های تنش آب از منظر تولید (WSI) و مصرف آب (CWSI) محاسبه گردید. نتایج نشان داد که محصول سیب‌زمینی با مصرف سالانه حدود 84 میلیون مترمکعب (66 درصد) بیش‌ترین سهم را در شاخص رد پای آب مجازی (VWF) دشت اردبیل به خود اختصاص داده است. پس از آن محصولات جو، یونجه و گندم به ترتیب با 21، 2/12 و 11 میلیون مترمکعب از شاخص رد پای آب مجازی (VWF) در رتبه‌های بعدی هستند. شاخص‌های WSIgreen، WSIblue و WSIgrey به ترتیب با مقادیر 5/0، 4/6 و 1/0- محاسبه شدند و کمبود آب مربوطه به ترتیب به‌عنوان تنش آبی متوسط و تنش آبی شدید ارزیابی نمودند. با توجه به محدودیت‌های منابع آب در دشت اردبیل، لازم است از منظر تولید، بهره‌وری آب کشاورزی منطقه‌ای بهبود یابد و توسعه و حفاظت از منابع آبی برای اطمینان از کمیت و کیفیت آب موردنیاز در اولویت قرار گیرد.
کلیدواژه‌ها
تنش آبی
منابع آب
CWSI
VWF و WSI

عنوان مقاله English

Estimation of the virtual water footprint and water shortage of Ardabil Plain main crops

نویسنده English

javanshir azizi mobaser
Department of water engineering, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil.
چکیده English

This research was conducted in Ardabil plain with the aim of investigating the quantitative and sustainable status of different sources of water supply for potato, wheat, barley and alfalfa crops. Using CROPWAT software, the water requirement of these products as the main crops of the plain was determined. Various components of the virtual water footprint, including VWFblue, VWFgreen, VWFgrey, as well as water stress indices from the perspective of production (WSI) and water consumption (CWSI) were calculated. The results showed that potatoes with an annual consumption of approximately 84 million m3 (66%) have the largest share in the virtual water footprint index (VWF) of Ardabil Plain. In addition, barley, alfalfa and wheat products have a virtual water footprint (VWF) of 21, 12.2, and 11 million m2 respectively. The WSIgreen, WSIblue, and WSIgrey indices were calculated with values of 0.5, 6.4, and -0.1, respectively, and moderate water and severe water shortages, respectively. Considering the limitations of water resources in the Ardabil Plain, it is necessary to improve the productivity of regional agricultural water from a production point of view and to prioritize the development and protection of water resources to ensure the quantity and quality of the water needed.

کلیدواژه‌ها English

CWSI
VWF
Water stress
Water resource and WSI
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