Remote Sensing and GIS Applications in Environmental Sciences
Identification and evaluation of optimum sites for construction waste landfill in Bukan
Document Type : Original Article
Authors
1 University of Maragheh
2 University of Maragheh, Department of Geography and Urban Planning.
3 MA in Geography and Urban Planning,University of Maragheh
Abstract
In the twentieth century, rapid urbanization and population growth led to increased construction, resulting in large volumes of construction waste and significant environmental challenges. Bukan County, due to its rapid spatial and physical development, has become one of the regions with a high volume of such waste, making it an ideal study area for identifying suitable construction waste disposal sites. The primary aim of this study is to minimize environmental impacts, improve public health, and optimize resource use through data-driven decision-making based on spatial analysis. In this study, the criteria for site selection include surface and groundwater resources, proximity to roads, rivers, urban and rural settlements, vegetation cover, land use, soil type, geology, slope, and elevation. These criteria were standardized using fuzzy logic functions and then integrated through the fuzzy gamma operator to generate a final land suitability map for construction waste disposal. The results show that the fuzzy values fall within a low range, highlighting significant limitations in finding suitable disposal sites within Bukan County. No area in the region fully meets the ideal criteria for site selection, with factors such as unfavorable topography and limited access to transportation networks being the primary challenges. However, by modification of the initial strict criteria and adopting a more flexible approach, three potential sites were identified as optimal options. These sites were selected based on their environmental advantages, accessibility, and reduced transportation costs. This study provides a practical, low-risk decision-support tool for local policymakers in managing construction waste.
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