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بررسی حساسیت به رخداد سیل در آبخیز عموقین با کاربرد فرآیند تحلیل سلسلهمراتبی | ||
| پژوهش های آبخیزداری | ||
| مقاله 9، دوره 34، شماره 2 - شماره پیاپی 131، تیر 1400، صفحه 108-123 اصل مقاله (1.58 M) | ||
| نوع مقاله: پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/wmej.2021.128834.1295 | ||
| نویسنده | ||
| یاسر حسینی* | ||
| دانشیار دانشکده کشاورزی و منابع طبیعی مغان- دانشگاه محقق اردبیلی | ||
| چکیده | ||
| آگاهی از آبدهی سیل در پژوهشهای بهرهوری از منابع آب و کاهشدادن زیانهای سیل اهمیت زیادی دارد. این پژوهش با هدف بهکاربردن سامانهی تحلیل سلسلهمراتبی برای تعیینکردن منطقههای پرخطر از نظر سیلگیری در آبخیز عموقین، استان اردبیل، انجام شد. مساحت آبخیز 78 کیلومتر مربع است. برای تعیینکردن مقدار شمارهی منحنی منطقه، تلفیق نقشهی کاربری زمین و گروه نفوذپذیری خاک (B، C، و D) بهکار برده شد، که برای سال 1394 بهاندازهی 78/7 برآورد شد. شاخصهای موثر بر سیلاب شامل شیب، شمارهی منحنی، فاصله از رودخانه، توان فرسایش آبراه، شاخص رطوبت پستیبلندی، جهت شیب، بارندگی، و ارتفاع بررسی، و لایههای موثر بر خطر سیلخیزی به نُه رده طبقهبندی شد .نقشهی پهنهبندی خطر سیلگیری با پنج ردهی خیلی کم، کم، متوسط، زیاد، و خیلی زیاد بهدست آمد. نتیجهها نشان داد که بیشترین تاثیر بر خطر سیلگیری از شمارهی منحنی نفوذ بود. فاصله از رودخانه و اندازهی بارندگی در ردههای بعدی اهمیت، و کمترین شاخص تاثیرگزار شکل شیب بود. نتیجهها نشانداد که 0/64 و 4/4% از منطقهی بررسیشده بهترتیب منطقههای با خطرسیلخیزی زیاد و خیلی کم است. | ||
| کلیدواژهها | ||
| آبخیز؛ اردبیل؛ تحلیل حساسیت؛ تحلیل سلسلهمراتبی؛ سیلاب | ||
| عنوان مقاله [English] | ||
| Assessing the Flooding Susceptibility in the Amuqin Watershed Using the Analytical Hierarchy Process Method | ||
| نویسندگان [English] | ||
| Yaser Hoseini | ||
| Moghan College of Agriculture and Natural resources, University of Mohaghegh Ardabili, Ardabil, Iran | ||
| چکیده [English] | ||
| Knowledge of the flood discharge rate is of the utmost importance in water resources utilization and flooding damage mitigation studies. Therefore, the aim of the current research was mainly to assess the Analytical Hierarchy Process (AHP) method to predict the flooding susceptibility of the Amughin Basin, located in the Province of Ardabil. The basin¢s area is approximately 78 km2. The curve number (CN) of the basin was found by integrating the land use maps with the soil hydrologic groups namely: B, C, D. The CN was estimated 78.7 the year for 2015. Different effective factors, namely: the slope percentage, land curvature, distance from the river, topographic wetness index, stream power index (SPI), and the CN were used in the application of the AHP method, and the effective layers were classified into nine classes. A flooding into susceptibility map was constructed and classified into five classes with very low, low, moderate, high, and very high susceptibility. The results indicated that the CN was the most prominent in flooding susceptibility; the distance to the river and the amount of rain occupied the next priorities. The lowest factor in the flooding susceptibility was related to the plan curvature. Moreover, the results indicated that about 0.64% and 4.4% of the study area were categorize with high and very low sensitivities, respectively. | ||
| کلیدواژهها [English] | ||
| Watershed, Ardabil, susceptibility analysis, Analytical Hierarchy Process, flooding | ||
| مراجع | ||
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