DSpace Coleção:

Dinâmica produtiva e organizacional da Coopafesp: um estudo sobre cooperativismo agrícola no Ceará

Wed, 01 Jan 2025 00:00:00 GMT

Título: Dinâmica produtiva e organizacional da Coopafesp: um estudo sobre cooperativismo agrícola no Ceará Autor(es): Xavier, Waleska Peixoto Abstract: Cooperatives represent collective organizations aimed at promoting the economic and social integration of their members, strengthening family farming, and fostering sustainable local development. In this context, the present study analyzes the socioeconomic and environmental dynamics of the Cooperativa da Agricultura Familiar e Economia Solidária do Estado do Ceará (COOPAFESP), located in Pindoretama, and its contribution to sustainable rural development. The study aims to understand how the cooperative strengthens income, expands market access, and promotes productive sustainability for its members, integrating economic, social, and environmental dimensions. To this end, a mixed-methods approach was adopted, combining qualitative and quantitative methods, and the study is characterized as an exploratory and descriptive case study. Data collection involved semi-structured interviews with managers and cooperative members, document analysis, georeferencing of production areas, and direct observation of productive practices. Qualitative data were analyzed using content analysis, while quantitative data were treated with descriptive statistics, allowing the identification of patterns and relationships between socioeconomic and productive variables. The results show that COOPAFESP collectively organizes production, diversifies family farming products, strengthens market insertion at the regional level, and encourages agroecological and solidarity-based practices. Despite challenges related to management, infrastructure, and dependence on external partnerships, the cooperative’s experience highlights its potential as a model of sustainable rural development, serving as a reference for public policies and solidarity economy initiatives in Ceará. Tipo: Dissertação

Influência dos fatores socioespaciais na ocorrência de microplásticos no escoamento pluvial de Fortaleza (CE)

Thu, 01 Jan 2026 00:00:00 GMT

Título: Influência dos fatores socioespaciais na ocorrência de microplásticos no escoamento pluvial de Fortaleza (CE) Autor(es): Santos, Victória Maria Carneiro dos Abstract: Microplastics (MPs) are synthetic polymers ranging in size from 1 μm to 5 mm. Stormwater runoff has been recognized as one of the main transport routes for these pollutants. However, studies relating socio-spatial factors to the abundance and characteristics of MPs present in stormwater runoff are still incipient, especially in developing countries of the Global South. This research aims to evaluate the influence of socio-spatial factors, such as land use and population density, on the distribution and characteristics of microplastics present in stormwater runoff in different coastal areas of the city of Fortaleza (CE). The study area includes four neighborhoods: i) Praia do Futuro I, ii) Cais do Porto, iii) Meireles, and iv) Barra do Ceará. Land use and occupation maps for each area were created using QGIS software. Stormwater runoff samples were collected between January and March 2025 from four stormwater outfalls in each neighborhood. The samples were analyzed through sieving, digestion of organic matter, density separation, filtration, counting, visual identification, and polymer analysis of MPs. The results indicate differences in the intensity and pattern of activities in the four areas. The abundance of MPs differed significantly between areas (p < 0.05), with the highest median observed in Meireles (1,824 items/L) and Barra do Ceará (688 items/L), both characterized by higher population density. Lower abundances were recorded in less inhabited areas, such as Praia do Futuro I (118 items/L) and Cais do Porto (100 items/L). Fibers, rubbers, and fragments predominated, with polyethylene, polypropylene, and polyethylene terephthalate being the main polymers identified. Significant differences were observed in the composition of shapes, colors, and sizes of MPs between neighborhoods (p < 0.05). Population density and residential and mixed land uses explain 66% of the morphological variability of microplastics, with greater heterogeneity of MPs occurring in more densely populated neighborhoods and those with higher intensity of residential and mixed land use. This study concludes that socio-spatial variables are fundamental to understanding MPs contamination in urban drainage systems, being related to the diversity of sources and the qualitative and quantitative characteristics of MPs. Tipo: Dissertação

Inundações no médio curso da Bacia Hidrográfica do Rio Mundaú, Alagoas: o caso dos eventos extremos de 2010 e 2022

Wed, 01 Jan 2025 00:00:00 GMT

Título: Inundações no médio curso da Bacia Hidrográfica do Rio Mundaú, Alagoas: o caso dos eventos extremos de 2010 e 2022 Autor(es): Silva, Maria Ranielle da Rocha Abstract: Recurring floods in the middle course of the Mundaú River Basin reveal a historical context of susceptibility associated with hydromorphological processes and urban occupation marked by persistent social vulnerabilities. In this context, this dissertation aimed to analyze the extreme rainfall events that occurred in 2010 and 2022 in the municipalities of União dos Palmares, Branquinha, São José da Laje, and Santana do Mundaú, investigating how precipitation extremes were articulated with environmental characteristics and territorial dynamics in the production of disasters. The methodology integrated rainfall analysis, hydrogeomorphological characterization of the basin, land use assessment, systematization of socioeconomic data, as well as the conversion of the percentage losses reported by the World Bank (2012) into absolute values. Thematic maps and comparative tables were also produced to highlight spatial patterns and differences between the two events. The results showed that the 2010 event had the greatest impact ever recorded in the region, with high rainfall reaching approximately 600 mm in June, combined with the intense occupation of floodplains and damages concentrated in the housing sector. In 2022, although rainfall totals were also high, ranging from 320 mm to 350 mm during the months of the rainy season, post-2010 urban reorganization reduced part of the population’s direct exposure. It is concluded that the disasters analyzed resulted from the interaction between climatic extremes, environmental susceptibility, and social vulnerability, reaffirming that territorial management plays a decisive role in reducing human and material losses in future events. Tipo: Dissertação

Análise tempo-espacial da cobertura vegetal dos sistemas ambientais do município de Morada Nova, através do uso dos índices espectrais de vegetação (2014-2024)

Thu, 01 Jan 2026 00:00:00 GMT

Título: Análise tempo-espacial da cobertura vegetal dos sistemas ambientais do município de Morada Nova, através do uso dos índices espectrais de vegetação (2014-2024) Autor(es): Silveira, Vladiana Lima da Abstract: This dissertation aims to conduct a geoenvironmental analysis of the municipality of Morada Nova, in the state of Ceará, based on the evaluation of spectral vegetation indices from 2014 to 2024. The study is grounded in understanding the spatiotemporal dynamics of vegetation cover and its interrelations with environmental and socioeconomic factors, especially within a semiarid context susceptible to environmental degradation. The specific objectives are to analyze the temporal evolution of vegetation spectral indices, identify patterns and trends throughout the historical series, and establish correlations between the indices and vegetation cover conditions. The adopted methodology is characterized by a qualitative-quantitative approach applied to geospatial analysis using remote sensing techniques, with the support of Quantum GIS 3.34.12 software. The NDVI and SAVI indices were employed, calculated from Landsat 8 and 9 (OLI/TIRS) satellite imagery, enabling a detailed temporal analysis of the municipality over the investigated decade. The results reveal significant changes in the geoenvironmental structure, indicating degradation processes that intensify the municipality’s vulnerability to desertification. Located in the Baixo Jaguaribe region and strongly dependent on agricultural and livestock activities, Morada Nova exhibits a territorial dynamic directly influenced by anthropogenic actions, which reinforces the relevance of vegetation monitoring as an essential tool for environmental planning and sustainable territorial management. Tipo: Dissertação