كليدواژه :
توسعه فيزيكي , الگوي گسترش , كلان‌شهر , اهواز , GIS
چكيده فارسي :
شهرنشيني، رشد شهري و گسترش نامطلوب آن به عنوان پديده‌اي جهاني، همۀ كشورهاي دنيا را تحت تاثير قرار داده است. اين پژوهش از لحاظ ماهيت هدف كاربردي و از نظر روش‌شناسي توصيفي تحليل مي‌باشد. به به دنبال بررسي روند گسترش فيزيكي و الگوي گسترش شهر اهواز در افق 1400 است. براي دستيابي اهدف ابتدا روند گسترش فيزيكي در دوره 35 سال (1360 تا 1395) بررسي شد و سپس 14 شاخص براي بررسي گسترش بهينه توسعه شهر اهواز در افق 1400 استخراج شدند كه با استفاده از منطق فازي (FUZZY) اين شاخص ها استاندارد شدند و در ادامه براي مدل بهينه با استفاده از مدل تحليل تركيبي ANPDEMATEL سه سطح براي گسترش اين شهر مشخص شده كه در تركيب با OVERLAYFUZZY و GAMA 0/9 در محيط Gis نقشه هاي خروجي نيز با استفاده از نرم افزار‌هاي envi و arcgis استخراج گشت. نتايج نشان داد در سطح مدل‌‌هاي پيش‌بيني كننده اراضي كشاورزي با وزن‌هاي 0.101 و 0.118 بيشترين اهميت و مهم‌ترين عامل تغيير يافته در روند گسترش فيزيكي شهر اهوا بوده است. همچنين خروجي سطح‌بندي گسترش فيزيكي در افق 1400 مشخص شد
چكيده لاتين :
Problem statement
The rapid increase in urban dispersal has become a major concern in many countries. Because this rapid dispersion of
harmful effects in the environment is worthless, so one of the most important issues facing urban development is its
expansion.
Aims
Physical extension and inappropriate pattern of urban areas in the chain link with reciprocating interactions causes the
natural lands of Ahwaz to be faced with a serious threat. In this regard, the present study seeks to investigate the physical
development of the metropolitan city of Ahvaz during the period from 1360 to 1395, and then predict its extension in the
1400 horizons.
Methodology
The present research is applied in terms of the purpose of development and in terms of descriptive-analytical methodology
based on library studies and field studies. In order to analyze the data, the theoretical foundations and research literature,
principles and criteria were first designed. Considering the different coefficient and the effect of each criteria and
indicators in the expansion of the metropolitan area of Ahwaz, the ANP-DEMATIL combination method was used for
determining the weights. Then, the principles and criteria are considered to be extracted and identified, which were
processed using satellite imagery over 5 years using the software (ENVI). Also, the following 12 criteria were considered
for exploring the landscape of the city's development until year The 1400 was chosen using the Euclidean Distance tool
from the total distance tools of the spatial distance maps. In the next step, using Fuzzy overly tools, with over 9% of the
total of spatial analytics tools in the ARCGIS software, the overlap maps were mapped to determine the extent to which
the city's expansion in 1400 would be.
Discussion
In this research, satellite images were analyzed and monitored using the ENVI software. Then, the classification of
satellite images was carried out to study the land use change in Ahvaz (period 1395-1384) and the accuracy of the results
of the classified images of the measurement Finally, the city of Ahvaz was expanded to the 1400 horizons.
Conclusion
The results showed that at the level of predictive models of agricultural land with weights of 0.101 and 0.118, the most
important and important factor has been the physical development of the city of Awah. Also, the output of physical
expansion on the horizon of 1400 showed that the best location in the immediate area of the 8th district of the city and
not being located on the site of agricultural land in this city.
