تعیین مناطق آسیب‌پذیر آبخوان دشت عجب‌شیر با استفاده از بهینه‌سازی روش دراستیک با الگوریتم ژنتیک و منطق فازی

نوع مقاله : پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد هیدروژئولوژی، دانشکدۀ علوم طبیعی، دانشگاه تبریز‌

2 استاد گروه علوم زمین، دانشکدۀ علوم طبیعی، دانشگاه تبریز‌

3 دانشیار گروه علوم زمین، دانشکدۀ علوم طبیعی، دانشگاه تبریز، ایران‌

4 دانشجوی دکتری هیدروژئولوژی، گروه علوم زمین، دانشکدۀ علوم طبیعی، دانشگاه تبریز‌

چکیده

‌در دهه‏های اخیر، رشد روز‌افزون جمعیت و توسعۀ تکنولوژی و به تبع آن، فعالیت‏های شدید کشاورزی و صنعتی منابع آب زیرزمینی را در معرض انواع آلاینده‏های ناشی از آنها قرار داده است. دشت عجب‏شیر واقع در جنوب غربی استان آذربایجان شرقی و جنوب شرقی دریاچۀ ارومیه، یکی از مناطقی است که با آلودگی آب زیرزمینی مواجه شده است و نیاز مبرم به بررسی‏های کیفی دارد. به همین منظور، در تحقیق حاضر، ابتدا از روش دراستیک معمولی برای بررسی پتانسیل آلودگی دشت عجب‏شیر به نیترات استفاده شد. سپس، با استفاده از روش‏های الگوریتم ژنتیک و منطق فازی (ساجنو) فرایند بهینه‏سازی صورت گرفت. مقدار شاخص در روش دراستیک معمولی از 87 تا 145، همچنین مقادیر شاخص دراستیک با در نظر گرفتن وزن‏های الگوریتم ژنتیک و بهینه‌سازی با منطق فازی به‌ترتیب 47 تا 74 و 01/0 تا 6/0به‏ دست ‏آمد که مطابق تقسیم‌بندی آلر دراستیک معمولی در محدوده‏های کم، کم تا متوسط و متوسط تا زیاد، قرار گرفته است که در آن منطقه‏ای از شمال دشت و شمال شهر عجب‏شیر دارای شاخص آسیب‏پذیری متوسط تا زیاد بودند. همچنین، دراستیک بهینه‌شده با الگوریتم ژنتیک و منطق فازی به علت کمتر بودن مقادیر شاخص از 79 در محدودۀ بدون خطر از نظر پتانسیل آلودگی قرار دارند. ضریب همبستگی دراستیک معمولی، روش الگوریتم ژنتیک و روش منطق فازی با غلظت نیترات به‌ترتیب 273/0، 57/0 و 796/0 حاصل شد. بنابراین، نتایج برتری روش منطق فازی نسبت به سایر روش‏ها را نشان می‏دهد.

کلیدواژه‌ها


عنوان مقاله [English]

Determining Vulnerable Areas of Ajabshir Plain Aquifer Using Drastic Method Optimization by Genetic Algorithm and Fuzzy Logic

نویسندگان [English]

  • Sorayya Nouri Sangarab 1
  • Asghar Asghari Moghaddam 2
  • Ali Kadkhodaie Ilkhchi 3
  • Fatemeh Kadkhodaie 4
1 Department of Earth Sciences, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
3 Department of Earth Sciences, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
4 Department of Earth Sciences, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
چکیده [English]

In recent decades, increasing of population and development of technology and, consequently, intense agricultural and industrial activities have exposed groundwater resources to a variety of pollutants. Ajabshir plain, located in the southwest of East Azarbaijan province and southeast of Urmia Lake, is one of the areas that has faced groundwater contamination and needs more qualitative studies. In this study, first, the conventional drastic method was used to investigate the potential of nitrate contamination in Ajabshir plain, and then the optimization process was performed using the methods of genetic algorithm and fuzzy logic (Sugeno). The index values in the conventional drastic method were obtained from 87 to 145, as well as the drastic index values obtained by considering the weights of the genetic algorithm and optimization with fuzzy logic, from 47 to 74 and 0.01 to 0.6, respectively. According to the allergy classification the ordinary drastic is located in low, low to medium, and medium to high ranges, in which areas from the north of the plain and the north of Ajabshir city had moderate to high vulnerability index. Also, the optimized variables with genetic algorithm and fuzzy logic are in the safe zone in terms of contamination potential due to lower index values than 79. The normal drastic correlation coefficient, genetic algorithm, and fuzzy logic method with nitrate concentration were 0.2,73, 0.57, and 0.796, respectively. Therefore, the results show the superiority of the fuzzy logic method over other methods.

کلیدواژه‌ها [English]

  • Ajabshir Plain Aquifer
  • Groundwater vulnerability
  • DRASTIC
  • Genetic Algorithm
  • Fuzzy logic
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دوره 8، شماره 2
تیر 1400
صفحه 381-395
  • تاریخ دریافت: 03 آذر 1399
  • تاریخ بازنگری: 22 اردیبهشت 1400
  • تاریخ پذیرش: 22 اردیبهشت 1400
  • تاریخ اولین انتشار: 26 خرداد 1400