Document Type : Research Paper

Authors

• Masoud Safaiepour ¹
• Hadi Alizadeh ²

¹ Department of Geography and Urban Planning, Shahid Chamran University of Ahvaz

² Geography and Urban Planning, Shahid Chamran University of Ahvaz

Abstract

The research methodology of "descriptive-analytic" with the aim of
analyzing the indicators in the assessment of urban development in the
catchment Ghaffar has been carried out in area. Indicators of urban
development in the area according to available data resources include
12 factors of topography, vegetation, slope gradient, the land, soil
conditions, altitude, power user, the communication area, the
hydrology of the region, the economic and social area, region, land
use and fault conditions which are classified. To form database and
providing required layers of base map we used data on natural
resources of Khuzestan. To achieve the status of urban development in
Ghaffar catchment conversion layer and software were produced in
Arc GIS 10. According to the fuzzy membership functions of the
fuzzy map conversion and in order to analyze their situation and
assess the model of urban development we offered Ghaffar catchment
area a fuzzy gamma operator (Fuzzy Gama). Maps produced in the
ArcGIS software and fuzzy process and analysis layers show that
among selected indicators about 0.67 of the basin area is not suitable
for urban development. Test threshold of 0.7, 0.8 and 0.9 for gamma
analysis shows that, Gamma analysis phase with a threshold of 0.7 in
accordance with the conditions of the region and consistent with than
the limited parts of southeast and east bordering of the catchment
areas of basin for urban development is not appropriate.

Keywords

• Fuzzy analysis
• Urban development indicators
• The gamma phase
• Ghaffar catchment

Main Subjects

• All other Geographic fields of studies , Interdisciplinary