ارزیابی ردپای آب سبز و آبی محصولات دامی (مطالعه موردی: دشت نیشابور)

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری هواشناسی کشاورزی دانشگاه فردوسی مشهد، پژوهشگر گروه پژوهشی زیست محیطی خاوران

2 دانشجوی دکتری سازه‌های آبی دانشگاه لرستان

چکیده

تولید و مصرف محصولات دامی نقش مهمی در تخلیه و آلودگی منابع آب شیرین کمیاب در جهان دارد. تولید بیش­تر محصولات دامی منجر به افزایش فشار بر منابع آبی در آینده خواهد شد. اطلاعاتی که ردپای آب محصولات دامی ارایه می­کند، در درک اینکه چگونه از منابع آب شیرین کمیاب استفاده پایدار شود، کمک خواهد کرد. در این مطالعه به برآورد ردپای آب تولیدات دامی با در نظر گرفتن جیره غذایی هر گروه دامی در دشت نیشابور پرداخته شد. نتایج نشان داد طی سال­های 1393- 1385، به طور متوسط سالانه 2043 میلیون مترمکعب آب برای تولید معادل 323 هزار تن محصولات دامی مصرف شده که از این مقدار حجمی معادل 537 میلیون مترمکعب از منابع آب، آبی و 1506 میلیون مترمکعب از منابع آب سبز تامین شده است. از آنجا که بیش از 98 درصد ردپای آب دام­های سبک، سنگین و طیورمربوط به خوراک مصرفی دام است، تغییر در میزان مصرف هر کدام از گروه‏های محصولات در جیره­غذایی دام از عوامل تاثیرگذار در ردپای آب تولیدات دامی است. بیش­ترین حجم آب منابع آبی به تغذیه گله­های گاو اصیل، مرغ گوشتی و گوسفند اختصاص می­یابد. همچنین در تخصیص منابع آب سبز برای تامین علوفه دام، گوسفند و بز به-علت چرای دام‏ها در مراتع، سهم بیش­تری را به خود اختصاص می­دهند.

کلیدواژه‌ها


عنوان مقاله [English]

Green and blue water footprint assessment of livestock products (Case Study: Nayshabur)

نویسندگان [English]

  • Azam Arabi Yazdi 1
  • Naser Nik nia 2
1 PhD student of Hydroalic strucrure, Lorestan university.
2 PhD student of Hydroalic strucrure, Lorestan university.
چکیده [English]

More production of livestock products has been increasing pressure on water resources in the future. This study estimates the water footprint of livestock products with regard to feed each animal in Neyshabur. Results shows that to produce the equivalent of 323 tons of livestock production, about 2043 million cubic meters of water has consumed annually, which is 537 million cubic meters of blue water resources and 1506 million cubic meters of water consumption is green. Since more than 98 percent of livestock water footprint is related to the animal feed, changing in animal feed is the most important factor of livestock production water footprint. The greatest volume of the blue water footprint is related to feed original cow, sheep and chicken. The most Green water footprint was allocated to provide forage for livestock, sheep and goats. Livestock production and consumption play an important role in the depletion and pollution of scarce freshwater resources in the world, water footprint of livestock products provides information that helps us to understand the sustainable use of scarce water resources.

کلیدواژه‌ها [English]

  • Blue and green water
  • Food rations source
  • Livestock products
  • Neyshabur
  • water footprint

 

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