نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه سنجش از دورو GIS دانشگاه تبریز

2 دانشجوی کارشناسی ارشدگروه سنجش از دور و GIS دانشگاه تبریز

چکیده

یکی از اقدامات اولیه و ضروری جهت مدیریت ناپایداری‌های دامنه‌ای و کاهش خسارات ناشی از آن‌ها، تهیه نقشه پهنه‌بندی خطر ناپایداری‌های دامنه‌ای و شناسایی نواحی مستعد خطر است. هدف این تحقیق نیز پهنه‌بندی خطر ناپایداری دامنه‌ای در شهرستان گرمی با استفاده از مدل ANP فازی است. برای این منظور نقشه‌های عوامل مؤثر در وقوع ناپایداری‌های دامنه‌ای (شیب، جهت شیب، طبقات ارتفاعی، لیتولوژی، فاصله از گسل، خاک، کاربری اراضی، شاخص پوشش گیاهی، فاصله از جاده، بارش و فاصله از رودخانه)در محیط نرم‌افزار ArcGIS تهیه شد. برای اجرای مدل ANP فازی همه 11 عامل دخالت داده شد و شبکه موردنظر تشکیل گردید. وزن‌دهی معیار در مدل تحلیل شبکه به روش پرسشنامه‌ای انجام شد. با تلفیق اوزان به‌دست آمده حاصل از نرم‌افزار سوپردسیژن با لایه‌های مربوطه در محیط نرم افزار ArcGIS نقشه نهایی مدل ANP فازی به‌دست آمد. در نتیجه نقشه پهنه‌بندی خطر ناپایداری دامنه‌ای که از دقت خوبی برخوردار بود حاصل شد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Zoning the risk of slope instability in Garmi city by fuzzy ANP method

نویسندگان [English]

  • Khalil Valizadeh_Kamran 1
  • Nazila Hashemzadeh 2

1 Department of Remote Sensing and GIS. Faculty of Planning and Environmental Sciences. University of Tabriz

2 M.s Student, Department of Remote sensing and GIS, University of Tabriz

چکیده [English]

One of the primary and necessary measures to manage slope instabilities and reduce the damage caused by them is to prepare a zoning map of slope instabilities and identify areas at risk. The aim of this study is to zoning the risk of slope instability in Garmi city using fuzzy ANP model. For this purpose, maps of factors affecting the occurrence of slope instabilities (slope, slope direction, elevation, lithology, distance from fault, soil, land use, vegetation index, distance from the road, rainfall and distance from the river) were prepared in ArcGis software environment. . To implement the fuzzy ANP model, all 11 factors were involved and the desired network was formed. Criterion weighting was performed in a network analysis model using a questionnaire. By combining the obtained weights obtained from Super decision software with the corresponding layers in ArcGis software environment, the final map of fuzzy ANP model was obtained. As a result, the zoning map provided the risk of domain instability with good accuracy.

کلیدواژه‌ها [English]

  • Zoning
  • ANP
  • AHP
  • Super decision
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