2008
DOI: 10.1590/s1413-70542008000400036
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Índice de sustentabilidade agroambiental para o perímetro irrigado Ayres de Souza

Abstract: Uma análise integrada do atual uso dos recursos naturais do Perímetro Irrigado de Ayres de Souza, localizado no Vale do Acaraú, Ceará, foi realizada através do desenvolvimento de um índice de sustentabilidade agroecológica. Os dados dessa pesquisa foram oriundos de questionários aplicados a 33 produtores agrícolas beneficiados pelo projeto de irrigação. Os indicadores de sustentabilidade foram estimados pelo emprego de análise fatorial, método da análise fatorial/análise de componentes principais. O índice de … Show more

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Cited by 6 publications
(5 citation statements)
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“…From the 82.07% of the total variance explained by the method, 35% is concentrated in the first component, demonstrating that agri-environmental sustainability presents differentiated dependence of the components defined by the applied model (Sands, & Podmore, 2000). Results similar to those presented were found by Luiz and Silveira (2000), Carneiro Neto, et al (2008) and Andrade et al (2009), where the values of the factorial weights for each component (PC1, PC2 and PC3) can be observed. variable, indicating that these variables are more significant for the PC1 component, and the variable that has the greatest influence is the Roads variable.…”
Section: Resultssupporting
confidence: 73%
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“…From the 82.07% of the total variance explained by the method, 35% is concentrated in the first component, demonstrating that agri-environmental sustainability presents differentiated dependence of the components defined by the applied model (Sands, & Podmore, 2000). Results similar to those presented were found by Luiz and Silveira (2000), Carneiro Neto, et al (2008) and Andrade et al (2009), where the values of the factorial weights for each component (PC1, PC2 and PC3) can be observed. variable, indicating that these variables are more significant for the PC1 component, and the variable that has the greatest influence is the Roads variable.…”
Section: Resultssupporting
confidence: 73%
“…The suitability test applied to the KMO model resulted in an index equal to 0.602, considered acceptable, demonstrating that the model will promote a significant reduction in the dimension of the original data (Silveira and Andrade, 2002;Carneiro Neto, 2008). The number of components selected in this study was based on components that presented eigenvalues greater than 1, according to studies described by Hair Júnior et al (2005) and defined by the criterion of Keizer Guttman (eigenvalue > 1).…”
Section: Resultsmentioning
confidence: 99%
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“…O peso médio da paleta dos cordeiros alimentados com até 30% de casca de maracujá desidratada foi de 1,028, abaixo de 1,077 kg, do valor encontrado por Dantas et al (2008), quando avaliaram as características da carcaça de ovinos Santa Inês terminados em pastejo e submetidos a diferentes níveis de suplementação (0,0, 0,5 e 1,5 % do PV).…”
Section: Methodsunclassified
“…Agriculture by itself can be a major villain responsible for environmental degradation, but it is also a key element in mitigating this degradation. It is responsible for the production of the food necessary for human consumption, but traditional methods of production, besides unbalancing ecosystems, still alter the social structures of rural life (Capellesso, Cazella, 2013; Moreira, Carmo, 2004; Neto et al, 2008). Since the second half of the 20th century, agriculture has been based almost exclusively on economic aspects, with negative effects on natural resources, soil pollution, water and air pollution, and the reduction of biodiversity (Scialabba, Müller-Lindenlauf, 2010).…”
Section: Introductionmentioning
confidence: 99%