Multi-criteria analysis for selection of priority management programs for the Japaratuba River Basin, SE, Brazil

Abstract

The Japaratuba River Basin (JRB), located in Sergipe, Brazil, has accelerated economic development due to oil exploration and an increase in the sugarcane and corn monocultures. Thus, environmental degradation has increased in the basin. Given the importance of the water supply that the hydrographic basin has for the state of Sergipe, and the need to balance its economic growth with environmental conservation, this study had the objective to analyze the Japaratuba River Basin Plan (JRBP), published in 2015, and propose the priority scale for the execution of programs arranged under the scope of a Strategic Environmental Assessment (SEA). Thus, the multi-criteria decision analysis (MCDA) applying the Analytic Hierarchy Process method (AHP) was used with data collection (water supply and distribution, sanitation, and forest cover) for the years 2018, 2019, and 2020, associating Geoprocessing techniques. It was verified that among the criteria analyzed for the definition of the priority scale, those associated with the restoration of ecosystems, sanitation, and hygiene, and water quality were the ones with the highest priority for execution according to the levels of criticality observed. The multi-criteria analysis expands the context of environmental criteria to be observed in further reviews of the JRBP; and expands the strategic environmental vision in the integrated management processes of the basin.

Evaluation of Water Quality of Buritis Lake

“…The spread of chemical agents introduced into the environment, which can generate possible genetic changes in organisms, motivated the development of methodologies for the evaluation of the genotoxicity of substances. Among the bioassays, the A. cepa test is widely used in laboratories for the analysis of various substances that may cause possible mutagenic potential, estimated by the frequency of aberrations and chromosomal breaks, expressing valuable information in relation to the evaluation of environmental samples [22].…”

Risk Mapping of Water Supply and Sanitary Sewage Systems in a City in the Brazilian Semi-Arid Region Using GIS-MCDA

“…The secondary data used in this work were collected from IBGE, Compesa, PE3D and the City Hall of Caruaru. Data collection was carried out through the Access to Information Law (Law n. 12,527, of Nov. 18,2011), going directly to the agencies, or through the internet.…”

“…On the other hand, the neighborhoods with areas with a low degree of sanitary sewage insufficiency were: Boa Vista (6); João Mota (18); Caiucá (7); Nossa Senhora da Dores (27); Cedro; Universitário. The neighborhoods with areas with a "Very low" degre were: Cidade Alta; Maurício de Nassau; Petrópolis; Indianópolis; Deputado José Antôni Liberato (12).…”

“…The neighborhoods with areas with a "Very low" degre were: Cidade Alta; Maurício de Nassau; Petrópolis; Indianópolis; Deputado José Antôni Liberato (12). Although there are elements of the sewage system in these neighborhoods On the other hand, the neighborhoods with areas with a low degree of sanitary sewage insufficiency were: Boa Vista (6); João Mota (18); Caiucá (7); Nossa Senhora das Dores (27); Cedro; Universitário. The neighborhoods with areas with a "Very low" degree were: Cidade Alta; Maurício de Nassau; Petrópolis; Indianópolis; Deputado José Antônio Liberato (12).…”

“…The growth of society in the urban environment requires the adequate use of its natural resources such that that they are not exhausted. Therefore, the Geographic Information System based the Multi-Criteria Decision Analysis (GIS-MCDA) as the preferred approach in several studies because it involves a combination of multiple criteria in a weighted way and also produces visual results, which is important for decisions in the urban environment, being used to: (i) delineate MAR (Managed Aquifer Recharge) sites [15,16]; (ii) identify potential zones for rainwater harvesting in a semi-arid area [17]; (iii) select priority management programs for watersheds [18]; (iv) assess the risk of urban flooding [19,20]; (v) decide the multi-criteria support for water management [21]; (vi) optimize the layout of water supply pipeline systems [22]; (vii) carry out mapping of water scarcity risks [23]; (viii) create zoning of areas at risk of deforestation [24]; (ix) identify water distribution points [25]; (x) analyze the feasibility of supply systems with groundwater abstraction [26]; (xi) identify Concentrated Solar Power (CSP) and Photovoltaics (PV) points to assess the potential of solar energy [27]; (xii) identify potential areas for marina construction [28]; (xiii) select landfill sites using GIS-MCDA [29].…”