تحلیل آسیب پذیری کاربری اراضی در برابر زلزله با کاربرد تلفیقی مدلهای چند متغیره (مطالعه موردی: شهرداری منطقه دو تبریز)
محورهای موضوعی : مطالعات برنامه ریزی شهری و منطقه ای
1 - دانشیار گروه جغرافیا و برنامه ریزی شهری، دانشگاه تبریز، تبریز، ایران
کلید واژه: زلزله, آسیب پذیری, پهنه بندی, مدل تاپسیس و سا, شهرداری منطقه 2 تبریز,
چکیده مقاله :
مجاورت بلافصل گسل شهر تبریز با محدوده ی شهرداری منطقه دو، افزایش تعداد محلات و مناطق پرتراکم، افزایش بارگذاری‌های محیطی و اقتصادی، پیچیدگی و ازیاد فاکتورهای موثر در پهنه بندی میزان خطر زلزله و نقش مکانی آنها در تشدید اثر آن، لزوم به کارگیری روشهای چند متغیره تصمیم ساز جهت تعیین درجه آسیب پذیری را ضروری می سازد. هدف مقاله حاضر تعیین وضعیت آسیب پذیری در شهرداری منطقه دو تبریز به روش تاپسیس و سا بوده که از روش های ارزیابی چند معیاره می باشد. طی این فرآیند ابتدا شاخص های طبیعی و انسانی مورد نیاز و تاثیرگذار در قالب 15 شاخص شناسایی، تهیه و مورد استفاده قرار گرفته اند و در نهایت نقشه تلفیقی میزان آسیب پذیری منطقه دو شهرداری تبریز به ازای کاربری اراضی تولید شده است. بر اساس مدل نهایی تاپسیس و سا، از کل مساحت 83/2104 هکتاری منطقه دو حدود 61/729 هکتار در مناطق با آسیب پذیری خیلی کم تا کم در قسمتهای جنوبی، 08/350 هکتار در مناطق با آسیب پذیری متوسط در قسمتهای مرکزی و 14/1025 هکتار با آسیب پذیری زیاد تا خیلی زیاد در قسمتهای شمالی و شمال غربی قرار گرفته است. همپوشانی نقشه کاربری اراضی با نقشه پهنه بندی خطر، 400 هکتار از کاربری مسکونی را در این کلاس خطر مشخص می نماید بنابراین برنامه ریزی برای مکانیابی اماکن اسکان موقت، مقاوم سازی ساخت و سازها در طول زمان و اصلاح موقعیت استقرار کاربری های حساس نسبت به سایر کاربری ها بر اساس نقشه نهایی تحقیق بایستی انجام شود.
Close proximity to the fault of Tabriz in the Region two of the Municipality of Tabriz, increasing the number of areas and densely populated areas, increasing the load on the environment, Complexity and the multitude of factors in the earthquake hazard zoning and the spatial role of them make necessary applying multivariate decision maker, to determine the degree of vulnerability. The main objective of this paper is to determine the vulnerability in SAW and TOPSIS methods. For this purpose, multi-criteria assessment methods based on the TOPSIS and SAW used for produce and analysis of different layers of land use map. Natural and human factors influencing in Vulnerability zonation map identified and was overlaid with the land use map. Based on the TOPSIS and SAW, from the total area of 2104.83 hectares, about 729.61 hectares of vulnerability in areas with very low to low in the southern parts, 350.08 hectares in the vulnerabilities average in the center and 1025.14 hectares of vulnerability high to Very high in the northern and northwestern parts of the Region two. Land use map overlaps with hazard zonation map, show 400 hectares of residential use in the high to very high class risk. So, the plan to locate the temporary housing sites, Retrofit construction during the time and modify sensitive land use location to other land uses on the final map of hazard zonation map.
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