تحلیل راهبردهای مدیریت منابع آب به روش TOPSIS بر مبنای ردپای آب محصولات کشاورزی در حوضۀ دز

نوع مقاله : پژوهشی

نویسندگان

گروه مهندسی منابع آب، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران

چکیده

کمبود انرژی، آب و منابع غذایی ناشی از رشد سریع جمعیت، تغییرات آب‏ وهوایی، عدم تعادل اکوسیستم‏ ها و تنوع اقتصادی، بزرگ‏ترین چالش برای جهان امروز است. در این مقاله، مدیریت منابع آب، انرژی و غذا با رویکرد Nexus و با استفاده از مفهوم ردپای آب در حوضۀ آبریز دز واقع در استان خوزستان بررسی می ‏شود. به این منظور، ردپای آب محصولات عمدۀ زراعی و باغی کشت‏ شده در این حوضه محاسبه شد. برای ارائۀ راهکارهای راهبردی در مدیریت منابع آب با توجه به سه مؤلفۀ آب، غذا و انرژی از روش تحلیلی TOPSIS استفاده شد. نتایج نشان داد بالاترین شاخص ردپای آبی محصولات به‏ ترتیب مربوط به ماش، برنج، نیشکر و کلزا بوده که به ‏ترتیب معادل 4945، 2671، 1462 و 1227 مترمکعب در تن است. با توجه به تحلیل و اولویت راهبردهای مؤثر بر مدیریت منابع آب، غذا و انرژی به روش TOPSIS، پنج معیار جمع‏ آوری و استحصال بهینۀ منابع آب، غذا و انرژی، تغییر الگوی آبیاری و اجرای روش‏ های کم‏ آبخواه، سهمیه ‏بندی منابع آب کشاورزی، توسعۀ مدیریت ریسک و بحران برای جلوگیری از نقصان در کمیت و کیفیت منابع آب، غذا و انرژی در راستای بهبود محصولات کشاورزی، بازچرخانی و استفادۀ مجدد از آب با تأکید بر جایگزینی پساب برای مصارف کشاورزی و فضای سبز با به ‏کارگیری روش‏ های نوین استحصال آب به عنوان راهبردهای با‏اهمیت و تأثیرگذار در ردۀ اول تا پنجم قرار گرفته‏ اند.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Analysis of water resources management strategies by TOPSIS method based on water footprint of agricultural products in Dez basin

نویسندگان [English]

  • Mandana Chaakhori
  • Narges Zohrabi
  • Hossein Fathian
Department of Water Resources Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
چکیده [English]

Lack of water, energy and food (WEF) resources due to rapid population growth, climate change, ecosystem imbalances and economic diversity are the biggest challenges for the world today. In this paper the optimal management of WEF resources is investigate with the nexus approach and using the concept of water footprint in the Dez basin located in Khuzestan province. In order, the water footprint of major horticultural crops cultivated calculated in this basin. Also, in order to provide strategic solutions in the optimal management of water resources with regard to the three components of WEF, the TOPSIS analytical method has been used. The results show that the highest index of water footprint of crops was related to mung bean, rice, sugarcane and rapeseed, respectively, which were equal to 4945, 2671, 1462 and 1227 cubic meters per ton, respectively. Finally, according to the analysis and priority of effective strategies on WEF resources management by TOPSIS method, five criteria such as optimal collection and extraction of WEF resources, changing irrigation pattern and implementation of low-demand methods, agricultural water resources quotas, development of risk management and crisis to prevent the loss of quantity and quality of WEF resources in order to improve agricultural products, recycling and reuse of water by emphasizing the replacement of effluents for agricultural use and green space by using new methods for water extraction; They are ranked first to fifth as important and effective strategies.

کلیدواژه‌ها [English]

  • water resources management
  • TOPSIS method
  • water footprint
  • Agricultural products
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