عنوان مقاله [English]
نویسندگان [English]چکیده [English]
In urban extention there are various intentions and opposed objects (for example: Land setting aside for urban extention and using agricultural farm for building), so just a direction finder glance to all efficient factors which affected on urban extention, can choose the best lands in the future. Therefore recognition and locating proportional land is one of the most important decisions of urban-planners. The main goal of this research is presenting and appropriate locating for Marvdasht urban extention for posterity. For this purpose GIS, a powerful and careful tool, was used for producing and analyzing maps and multiform layers of Marvdasht land use.
At first, 10 indices, natural and mankind guidelines, such as, slope direction, land capability, torrential lands, fault, river, road connection net, railway connection net, industries, rural points of cities suburbs, power transition lines were introduced, prepared and edited. After wards, by using models and analytical functions of GIS (such as: proximity, bounds, over lapped, …) case study limits in each indices and criterions were created and optimum directions maps of physical extentions of each layer were determined. After that, standardization operations and putting layers together was done by dignity ranking, overlapped and map combination methods, Finally, after arranging the made maps, the last map consisting of appropriate directions of Marvdasht extention during the next years was chosen and demonstrated