Abstract
The evaluation of suitable landfill sites is a complex process and requires various legislative, technical, social, and environmental criteria. Therefore, this study provides a management tool for identifying suitable sites for landfills through the integrated use of the analytic hierarchy process (AHP), geographic information systems (GISs), and remote sensing (RS). Accordingly, fourteen subcriteria were identified and grouped into physical (7), environmental (3), and socioeconomic (4) criteria and were weighed using pairwise comparison matrices (PCMs). The weighted linear combination (WLC) approach of maps allowed us to generate models and submodels of land suitability. From the territory of the districts of Chachapoyas and Huancas, 0.9% (1.71 km2), 71.1% (141.89 km2), 21.0% (41.86 km2), 0.0%, and 7.7% (14.21 km2) have highly suitable, moderately suitable, marginally suitable, unsuitable, and restricted conditions, respectively, for a landfill site. Twelve highly suitable sites were identified, of which three were selected based on their shape and the minimum area required for the operation of the landfill until 2040. In fact, this study proposes a management tool for decision‐makers (DMs) that improve the process of selecting landfill sites, supported by engineering and its applications for territorial sustainability.
Highlights
Study Area. e districts of Chachapoyas and Huancas are located in the province of Chachapoyas, which is in the Amazonas region in the NW of Peru (Figure 1; 6°27′45′′–6°48′07′′ S and 77°43′05′′–77°49′51 ′′W). e total surface area represents approximately 199.67 km2, with an average annual temperature of 15.6°C and annual accumulated rainfall of 811 mm
Commercial, and tourist activities. e city is expanding at a rapid pace, with new areas of human settlement. is is due to the creation of the National University Toribio Rodrıguez de Mendoza de Amazonas (Universidad Nacional Toribio Rodrıguez de Mendoza de Amazonas—UNTRM) in 2000, which has influenced the migration of the rural population
1480 - 2206 2206 - 2734 2734 - 3438 criteria established by the Ministry of Environment (MINAM) [51], it was considered proximity to access to roads, urban areas, and airports, and apart from that, it was included the proximity to tourist centers due to the increase in tourism in the city of Chachapoyas
Summary
Erefore, the physical variables considered were as follows: the elevation, slope, soil texture, proximity to geological faults, and geology type as well as the meteorological variables such as rainfall and average annual temperature [36, 49], which are very important for landfills due to the influence of these parameters on the generation of leachates and the decomposition rate of MSW [48]. 1480 - 2206 2206 - 2734 2734 - 3438 criteria established by the Ministry of Environment (MINAM) [51], it was considered proximity to access to roads, urban areas, and airports, and apart from that, it was included the proximity to tourist centers due to the increase in tourism in the city of Chachapoyas.
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