ارزیابی کیفیت منابع آب سطحی و زیرزمینی دشت نقده- اشنویه

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری، گروه آبخیزداری، دانشکده منابع طبیعی، دانشگاه ارومیه، ایران

2 دانشیار، گروه آبخیزداری، دانشکده منابع طبیعی، دانشگاه ارومیه، ایران

10.22034/eiap.2022.158574

چکیده

ارزیابی کیفی منابع آب از مباحث اساسی در علم هیدرولوژی محسوب می‌‌شود. به منظور ارزیابی روند تغییرات کیفیت آب با استفاده از پارامترهای فیزیکی و شیمیایی در 21 ایستگاه پایش منابع آب ‌‌سطحی و 33 ایستگاه منابع آب زیرزمینی با استفاده از شاخص‌‌های کیفی IRWQI، NSFWQI، WQI، OWQI، CWQI، DWQI و WPI در دوره آماری 1391-1392 مورد آنالیز قرار گرفت. وضعیت کیفی آب بر اساس شاخص‌‌های NSFWQI، WQI، WPI و OWQI برای منابع آب سطحی و زیرزمینی یکسان بود و در طبقات کیفی متوسط، عالی و بسیار ضعیف قرار گرفت. همچنین وضعیت کیفی متوسط در شاخص‌‌های IRWQISW و IRWQIGW وضعیت فقیر شاخص‌‌های CWQI و DWQI در منابع آب سطحی و وضعیت خوب و عالی به ترتیب در شاخص‌‌های CWQI و DWQI برای منابع آب زیرزمینی ارزیابی شد. در منابع آب سطحی ایستگاه‌‌های شیخان چای (6)، کانی رش (9)، بالقچی چای (15 و 16)، محمدشاه (19) و گدارچای (20) به عنوان آلوده‌‌ترین ایستگاه‌‌ها شناسایی شدند که پارامتر کل جامدات معلق (4/90%)، بیشترین درصد تاثیرگذاری را در ایستگاه 9 داشت و در منابع آب زیرزمینی ایستگاه‌‌های نظام آباد (23)، فرخ‌زاد (27)، عظیم‌خانلو (28)، آده (31) و ممیند (32) آلوده‌‌ترین ایستگا‌‌ه‌‌ها بودند که پارامتر فسفات (3/58%)، بیشترین میزان تاثیرگذاری را در کاهش کیفیت آب در ایستگاه 23 داشت. نتایج نشان‌دهنده مناسب بودن شاخص WPI در برآورد کیفیت آب سطحی و زیرزمینی می‌باشد.

کلیدواژه‌ها


عنوان مقاله [English]

Water Quality Assessment of Surface and Ground Water Resources in Naghadeh- Oshnavieh Plain

نویسندگان [English]

  • Manzar Mahmodi 1
  • Mahdi Erfanian 2
1 PhD Student, Department of Watershed Management, Faculty of Natural Resources, Urmia University, Iran
2 Associate Professor , Department of Watershed Management, Faculty of Natural Resources, Urmia University, Iran
چکیده [English]

Qualitative assessment of water resources is one of the main topics in hydrology. In order to evaluate the trend of water quality changes using physical and chemical parameters in 21 surface water monitoring stations and 33 groundwater resources stations using IRWQI, NSFWQI, WQI, OWQI, CWQI, DWQI and WPI quality indicators in the period Statistical analysis of 2012-2013. Water quality status according to NSFWQI, WQI, WPI and OWQI indices was the same for surface and groundwater resources and was in the middle, excellent and very poor quality classes. Also, the average quality status in IRWQISW and IRWQIGW indices, poor condition of CWQI and DWQI indices in surface water sources and good and excellent condition in CWQI and DWQI indices for groundwater resources were evaluated, respectively. In surface water sources, Sheikhan Chai (6), Kani Rash (9), Balqachi Chay (15 and 16), Mohammad Shah (19) and Godarchai (20) stations were identified as the most polluted stations, which is the parameter of total solids. Suspended (90.4%) had the highest impact percentage in station 9 and was polluted in groundwater resources of Nizamabad (23), Farrokhzad (27), Azim Khanlu (28), Adeh (31) and Mamind (32) stations. The most stations were the phosphate parameter (58.3%), which had the greatest impact on reducing water quality in station 23. The results show that the WPI index is appropriate for estimating surface and groundwater quality.

کلیدواژه‌ها [English]

  • Pollution
  • Parameters
  • Naghadeh-Oshnavieh Plain
  • Water quality indicators
  • Water resources
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