Land Suitability Analysis for Physical Development Based on Natural Criteria (Case Study: Bojnord)
Subject Areas : Journal of Radar and Optical Remote Sensing and GIS
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Keywords: Land suitability, land use, physical development, Natural Criteria, Bojnord,
Abstract :
Ignoring suitable land for urban and non-urban development, especially in zones that have physical and natural problems, greatly influences security and the costs of living and eventually, leads to human and environmental disasters. This research intended to evaluate urban land suitability for physical development in Bojnord in north Khorasan based on natural factors and by using the Analytic Hierarchy Process (AHP) technique. The library and field research methods were employed for collecting data and the Arc GIS and Global Mapper 16 software for analyzing the data and for making calculations. The studied geographical zone was the entire city of Bojnord and its surrounding areas. The investigated indicators included slope, vegetation, fault, geological characteristics, elevation, river, groundwater, and type of soil and its erosion. The analysis of the results showed that, considering the geographical and topographic features of the city, only about 9 percent (8804 hectares) of the available areas (distributed in the northwestern and southern parts of the city) were very suitable or suitable, about 9.98 percent (9869 hectares) moderately suitable, and 81 percent unsuitable or very unsuitable. Therefore, land-use planning for this city is of high sensitivity, and it is essential that results of studies on land suitability be employed.
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