Análise Multicritério Na Definição De Áreas Prioritárias Para Recuperação Florestal Na Bacia Do Rio Doce, Em Minas Gerais

Almeida, Franciane Carla de; Silveira, Eduarda Martiniano de Oliveira; Acerbí, Fausto Weimar; França, Luciano Cavalcante de Jesus; Bueno, Inácio Thomaz; Terra, Breno José Oliveira

doi:10.31413/nativa.v8i1.8130

Cited by 6 publications

(5 citation statements)

References 38 publications

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“…In this study, Silva et al concluded that AMC was efficient for determining priority areas in watersheds and could be a great management tool. Almeida et al (2020) performed an AMC to define priority areas for forest recovery in the Rio Doce watershed using factors such as proximity to forest remnants, water bodies, and slope. Almeida et al concluded that multicriteria analysis was an easy-to-implement and efficient tool, where, provided that the database was solid, it was possible to obtain maps that helped in predicting adequate solutions with the aim of recovery.…”

Section: Resultsmentioning

confidence: 99%

“…This comparison is based on a scale recommended by Saaty (1990; Table 1), where values greater than 1 have a greater degree of importance, values less than 1 represent a lesser degree of importance, and values equal to 1 have equal importance. Thus, the AHP method allows associating relative weights, in order of priority, to distinguish the importance that each criterion will have for decision‐making (Almeida et al, 2020).…”

Section: Methodsmentioning

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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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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

Zani,

Lopes,

Damaceno

et al. 2023

Integr Envir Assess & Manag

View full text Add to dashboard Cite

show abstract

“…In Figure 5 it is possible to visualize the flowchart containing the methodological steps used to delimit the priority areas for forest recovery. The weights for each IP were also defined, according to [37] (Frame 5). The slope map was made from the Slope tool, using the DEM of the Itapemirim river basin, where it was subsequently reclassified into their respective classes.…”

Section: Forest Fragments Costsmentioning

confidence: 99%

Delimitation of Ecological Corridor Using Technological Tools

Mardeni¹,

Dias²,

Santos³

et al. 2023

Preprint

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Ecological corridors function as a viable way to mitigate the environmental impact arising from forest fragmentation by interconnecting forest fragments through various techniques. In this context, the objective of this study is to propose a route for the implementation of an ecological corridor in the Itapemirim river watershed. The specific objectives were: (i) to delimit the permanent preservation areas (APP) of the Itapemirim river watershed and compare land use and land cover in the delimited areas; (ii) to calculate landscape ecology indices and select the forest fragments with the highest potential for ecological corridor implementation using Fuzzy logic; (iii) to assess costs and trace the best route for ecological corridor implementation, considering distance and physical impediments; (iv) to assess land costs and expropriation costs to delimit the ecological corridor in the study area. To map land use and land cover, the MapBiomas platform was used, based on Landsat 8 satellite images. The permanent preservation areas were delimited according to criteria established by Law No. 12.651 of May 25, 2012, which establishes parameters, definitions, and limits for APP. The characterization and structural quantification of some landscape ecology indices were performed using the QGIS 3.26 computational application, through the LecoS 3.0.1 plugin and Fragstats 4.2. The connected forest fragments were the Caparaó National Park, the Serra das Torres State Natural Monument, and the fragments selected through the application of Fuzzy logic to the landscape ecology indices. The corridor was delimited according to the lowest cost route, considering land use and land cover, APP, fragment potential, slope, and subnormal clusters. For each cost raster image, its respective statistical weights were calculated using the Analytic Hierarchy Process (AHP) hierarchical method, as well as for the analysis of priority areas for forest restoration, considering land use and land cover, APP, pedology, lithology, and biological importance. The interconnection between protected areas and fragments with the ecological corridor followed the orientation described by CONAMA nº 09/96. Based on the development of the work, the following results were identified: the highest land use and land cover class is pasture. Of the area designated for permanent preservation, 68.58% is in conflicting use with the legislation. The bare land value per hectare of the pasture class is the second highest among the bare land value per LULC values, representing 64.28% of the total. The priority area map showed that 31.86% of the area was classified as of very high or high importance and 42.97% as low or very low priority for forest restoration. Thus, it is concluded that the least cost path algorithm associated with the result generated by the multi-criteria decision method (AHP) constitutes an important tool for planning and implementing an ecological network by taking into account the primary factors for decision-making regarding the location of the best route.

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“…AHP is a quantitative method used to prioritize decision alternatives and select an alternative that satisfies pre-defined criteria (SAATY, 2008). AHP has been applied in various studies related to environmental fragility (FRANÇA et al, 2019), mapping and identifying priority areas for forest recovery (DE ALMEIDA et al, 2020), food security under climate change (ALLIPOUR BIRGANI et al, 2022), and groundwater management under climate change (SCHEIHING et al, 2022). To assess the impact of climate change on different types of agricultural production, this study combines AHP with the calculation of climate change impact indices following the formula by Balica and Wright (BALICA & WRIGHT, 2010;TÍN et al, 2018) and classifies the degree of climate change impact according to Le Anh Tuan (LE et al, 2013).…”

Section: Analytic Hierarchy Process (Ahp)mentioning

confidence: 99%

Potential Impacts of Climate Change on Agricultural Production in the Long Xuyen Quadrangle, Vietnamese Mekong Delta

Dinh,

Nhan,

Nguyen

2023

NAT

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Climate change and its impacts have become a serious and concerning global issue. The Vietnamese Mekong Delta, is identified as one of the deltas most adversely affected by climate change. This study aims to assess the potential impacts of climate change on seven major agricultural production systems in the Long Xuyen Quadrangle region within the Vietnamese Mekong Delta. Utilizing the Analytic Hierarchy Process (AHP) in conjunction with calculating climate change impact indices, the research classifies the degree of climate change impact on agriculture, aquaculture and forestry. The study results indicate that different agricultural production systems will experience varying impacts from climate change. For rice cultivation, flooding and drought are identified as the factors with the highest impact. Factors such as temperature increase, changes in rainfall and salinity intrusion have the most significant effects on aquaculture. In contrast, cultivated and natural forests in the research area are less affected by climate change. This assessment outcome could be highly valuable for policymakers in developing local agricultural development plans. Keywords: climate change effects; land use; rice cultivation; saline intrusion. Impacto potencial das alterações climáticas na produção agrícola no Quadrilátero Long Xuyen, Delta vietnamita do Mekong RESUMO: As alterações climáticas e os seus impactos tornaram-se uma questão global séria e preocupante. O Delta vietnamita do Mekong é identificado como um dos deltas asiáticos mais afetados pelas alterações climáticas. Este estudo visa avaliar os impactos das alterações climáticas em sete grandes sistemas de produção agrícola na região do Quadrilátero Long Xuyen, no Delta do Mekong, Vietnã. Utilizando o Processo de Hierarquia Analítica (AHP), em conjunto com o cálculo dos índices de impacto das alterações climáticas, a investigação classifica o grau de impacto das alterações climáticas na agricultura, aquicultura e silvicultura. Os resultados do estudo indicam que diferentes sistemas de produção agrícola sofrerão impactos variados das alterações climáticas. Para o cultivo do arroz, as inundações e a seca são identificadas como os fatores de maior impacto. Fatores como o aumento da temperatura, as mudanças nas chuvas e a intrusão de salinidade têm os efeitos mais significativos na aquicultura. Em contraste, as florestas cultivadas e naturais na área de investigação são menos afetadas pelas alterações climáticas. O resultado desta avaliação poderá ser altamente valioso para as decisões políticas no desenvolvimento de planos de desenvolvimento agrícola local. Palavras-chave: efeitos das alterações climáticas; uso da terra; cultivo de arroz; intrusão salina.

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Análise Multicritério Na Definição De Áreas Prioritárias Para Recuperação Florestal Na Bacia Do Rio Doce, Em Minas Gerais

Cited by 6 publications

References 38 publications

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

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

Delimitation of Ecological Corridor Using Technological Tools

Potential Impacts of Climate Change on Agricultural Production in the Long Xuyen Quadrangle, Vietnamese Mekong Delta

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