Multicriterial Analysis for the Identification of Key Areas to Improve the Management in Piracicaba River Basin, Brazil

Lopes, Tárcio Rocha; Folegatti, Marcos Vinícius; Zolin, Cornélio Alberto; Moura, Larissa Brêtas; Oliveira, Rubmara Ketzer; Fraga, Luciano Sobral; Duarte, Sérgio Nascimento; Santos, Otávio Neto Almeida; Moster, Claudia

doi:10.1061/(asce)he.1943-5584.0002146

Cited by 3 publications

(4 citation statements)

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“…Several studies have already been done using multicriteria analysis (Lopes et al, 2020, 2022; Valente et al, 2021; Vettorazzi & Valente, 2016; Viezzer et al, 2022; Yan et al, 2022). For example, Ghosh and Lepcha (2019) used the WLC method and carried out an analysis of the potential for soil erosion in the district of Malda (India), where the method revealed an excellent ability to identify areas with high susceptibility to erosion.…”

Section: Resultsmentioning

confidence: 99%

“…The time of concentration refers to the time that precipitated water at the most distant point of the basin takes to move to the section of main interest (Tucci, 2008). Thus, Lopes et al (2022) stated that the shorter the time of concentration in a region of the basin, the greater the speed and rate of surface water runoff, leading to erosion processes. Therefore, areas with shorter concentration times have a greater need for prioritization.…”

Section: Methodsmentioning

confidence: 99%

“…The criteria maps were created with a resolution of 30 m and normalized to a scale of 0–255, where, according to Lopes et al (2022), the value 0 indicates that it is not adequate, and the value 255 indicates that it is perfectly adequate (Figure 3). This normalization was performed in ArcGIS 10.1 by the Raster Calculator tool using the methodology of Vettorazzi and Valente (2016).…”

Section: Methodsmentioning

confidence: 99%

“…The multicriteria analysis technique can be very useful in decision‐making processes for the implementation of public policies because many situations must be based on several technical criteria and incorporate the opinions of the managers who are involved, in addition to maintaining transparency and objectivity in the process (Jannuzzi et al, 2019; Lopes et al, 2020, 2022; Mello et al, 2018; Silva et al, 2017; Valente et al, 2021). Due to these characteristics, the use of multicriteria analysis becomes very interesting in supporting decision‐making, facilitating the choice of areas and actions to be implemented, and improving the management and planning of water resources.…”

Section: Introductionmentioning

confidence: 99%

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Identification of priority areas for water conservation in the Alto Iguaçu basin, Brazil

Zani,

Lopes,

Damaceno

et al. 2023

Integr Envir Assess & Manag

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Geoprocessing tools are great allies in the management of water resources, with which it is possible to evaluate several factors integrated in a multicriteria analysis. This improves the interpretation of the behavior of water and soil in hydrographic basins, enabling the delimitation of priority areas for actions. The objective of this study was to prepare a map of priority areas for water conservation in the Alto Iguaçu basin through a multicriteria analysis, aiming to assist in the management of water resources in the region. The priority map for water conservation was prepared using the weighted linear combination (WLC) method, considering the weight added to the factors that were obtained by the analytic hierarchy process (AHP) method. The method successfully identified priority areas for water conservation, where 40.7% of the Alto Iguaçu watershed was considered high priority and very high priority, a number consistent with regional characteristics. The multicriteria analysis proved to be a flexible and easy‐to‐implement methodology, which can help managers when considering the trade‐offs among several factors. The implementation of water conservation actions in areas that have been classified as being of high and very high priority can benefit the regional ecosystem, controlling erosion, regulating the flow of water and thus conserving the quantity and quality of water in the basin and its downstream region, benefitting the population and regional economics.

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