بررسی کیفیت آب و مناطق مناسب برای تغذیه آب‌زیرزمینی در واحدهای مختلف ژئومورفولوژی در استان کهگیلویه و بویر‌احمد

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری گروه علوم آب، واحد شوشتر، دانشگاه آزاد اسلامی، شوشتر، ایران

2 گروه علوم آب، واحد شوشتر، دانشگاه آزاد اسلامی، شوشتر، ایران

3 گروه آبیاری و زهکشی، واحد شوشتر، دانشگاه آزاد اسلامی، شوشتر، ایران

چکیده

هدف از این تحقیق بررسی کیفیت آب و تعیین مناطق مناسب برای تغذیه آبزیرزمینی در استان کهگیلویه و بویراحمد می‌باشد. به همین منظور از دادههای بارندگی، زمینشناسی، فاصله از گسل، شیب، و ارتفاع برای تعیین مناطق مستعد تغذیه آب زیرزمینی و از پارامترهایی کیفی آب مانند سدیم، هدایت الکتریکی، کلسیم، منیزیم در ۳۰نقطه نمونهبرداری شده برای تعیین کیفیت آب استفاده شد. بعد از تهیه هر یک از دادهها، با استفاده از توابع عضویت نقشه فازی برای هر یک از پارامترهای موثر در کیفیت آب­زیرزمینی تهیه شد. سپس با استفاده از مدل تحلیل سلسله مراتبی (AHp ) وزن هر یک از لایهها مشخص و در نهایت در محیط GIS نقشه کیفیت آب و نقشه مناطق مستعد تغذیه آب زیرزمینی تهیه گردید. نتایج حاصل از نقشه تغذیه آب زیرزمینی نشان داد که مناطق واقع در شمال و غرب مناسب برای تغذیه آب­زیرزمینی هستند. همچنین نتایج نشان داد که از نظر کیفیت آب ۴۴/۲ درصد از منطقه در کلاس ضعیف، 09/15 درصد در کلاس متوسط، 95/62 درصد در کلاس خوب و 52/19 درصد از منطقه در کلاس خیلی­خوب از نظر کیفیت آب قرار گرفته و بهترین مناطق از نظر کیفیت آب در واحد کوهستان و بهترین مکان برای تغذیه آب زیرزمینی در بخشهایی از پلایا و دشتسر میباشد. بنابراین پیشنهاد میشود که با توجه به عدم کیفیت آب در واحد پلایا بهتر است که برای تغذیه آبزیرزمینی در مکانهای واقع در دشتسر اقدام شود.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Determination of Suitable Areas for Groundwater Recharge in Different Geomorphological Units and Evaluation of Water Quality in Kohgiluyeh and Boyer Ahmad

نویسندگان [English]

  • Enayatollah Adeli Moghadam 1
  • Ehsan Derikvand 2
  • Hossein Eslami 2
  • Hosein Ghorbanizadeh 2
  • Majid Razaz 3
1 Ph.D. Student, Department of Civil Engineering - Water Resources Engineering and Management, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran
2 Department of Civil Engineering - Water Resources Engineering and Management, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran
3 Department of Civil Engineering - Water Resources Engineering and Management, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran.
چکیده [English]

Restrictions of surface water resources in arid and semiarid regions, along with increasing population and agricultural development, have led humans to exploit groundwater reserves as an important water resource. It is in arid and semi-arid regions that the change in groundwater quality caused by mismanagement of groundwater is an introduction to the degradation of water resources and other resources, both directly and indirectly.
Recently, numerous studies have been conducted on water quality with different models (Farajzadeh and Mohammadi, 2010; Kholghi and Hosseini, 2009; Mokarram et al., 2019; Taghizadeh Mehrjerdi et al., 2008).
Mehrjerdi et al. (2008) explored the application of chemical parameters such as EC, TDS, and CI in groundwater quality zoning of Ardakan-Yazd plain. Sanches (2001) and Thoradeniya et al. (2019) have also investigated water quality assessment and zoning.
Therefore, studying and evaluating the quality of groundwater and identifying suitable sites for groundwater recharge in these areas can help with proper management of water resources. The purpose of this study was to evaluate groundwater quality using fuzzy method in Kohgiluyeh and Boyer Ahmad, Iran, in different geomorphological units. In order to determine groundwater quality in the study area, parameters such as Na, electrical conductivity (EC), Ca, Mg were measured in 30 sample points.

کلیدواژه‌ها [English]

  • Groundwater quality
  • Artificial recharge
  • Geomorphology units
  • Fuzzy-AHP method
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