https://repositorio.ufu.br/handle/123456789/5497 2026-04-17T16:20:03Z 2026-04-17T16:20:03Z https://repositorio.ufu.br/handle/123456789/48602 2026-04-03T06:21:00Z 2026-02-25T00:00:00Z

Title: Entre a unidade e a fragmentação: a dicotomia Geografia Física e Geografia Humana Abstract: This thesis analyzes the fragmentation between Physical Geography and Human Geography as an expression of modern rationality and examines its impacts on the constitution of geographic knowledge. The central concern of the study is to investigate whether the Physical–Human dichotomy has the potential to undermine Geography’s specificity as a scientific field. Authors such as Wooldridge and East (1967), Mendonça (1998), Suertegaray (2001), Lacoste (2011), and Souza (2024) highlight the harmful effects of fragmentation on Geography, pointing to the epistemological difficulties this process has generated for both geographic thought and practice. Based on these premises, the objective of this research is to analyze the causes and consequences of fragmentation within Geography, with particular emphasis on the Physical versus Human dichotomy. Methodologically, the study is grounded in a theoretical and conceptual literature review. The analyses developed throughout the dissertation support the argument that the dichotomous fragmentation between Physical Geography and Human Geography constitutes an epistemological problem, compromising Geography’s specificity as a science oriented toward the understanding of relations. It is concluded that this division is not merely organizational or institutional, but rather expresses a legacy of modern fragmentary rationality, further reinforced by internal dynamics within the geographic field itself. In this sense, the study argues for the necessity of overcoming this dichotomy through the affirmation of a unity constructed within diversity, capable of preserving analytical plurality without undermining the epistemological coherence of Geography.

2026-02-25T00:00:00Z https://repositorio.ufu.br/handle/123456789/48587 2026-03-31T06:17:24Z 2026-02-27T00:00:00Z

Title: Paisagens e solos do Pantanal do Salobra– MS Abstract: The present study aims to identify the geoenvironments of the floodplain of the Salobra River and to characterize the physical, chemical, mineralogical, and morphological properties of the soils formed in this region, derived from carbonate materials of the Corumbá Group, transported by the river from its headwaters in the Bodoquena Plateau. The study area comprises the lower course of the Salobra River sub-basin, located within the geomorphological unit of the Northern Bodoquena Depression, referred to in this study as the Salobra Pantanal. Ten soil profiles were described and sampled, and five geoenvironments were identified, organized into two landscape compartments: (1) slightly flood-prone areas, represented by continuous and fragmented units, including terraces and forested mounds (capões); and (2) highly flood-prone areas, represented by bays, corixos (secondary channels), and the depositional plain of the Salobra River. Most soils exhibit dark surface horizons and subsurface horizons with grayish tones. Soil pH in H₂O ranged from 6.28 to 8.84 (mean 8.06), indicating predominantly neutral to alkaline reactions. Physical analysis revealed a predominance of clay in the slightly flood-prone geoenvironments, although high clay contents were also observed in seasonally flooded areas, with variations in sand and silt proportions. A notable feature is the presence of gastropod shell fragments, especially in soils from the lower-lying areas. Calcium carbonate equivalent showed high concentrations, reaching up to 900 g/kg in certain horizons. The results highlight the strong influence of the carbonate rocks of the Corumbá Group on the genesis of soils in the Salobra River floodplain, controlling their morphology, chemical composition, and mineralogy. Total oxide contents revealed the predominance of SiO₂, Al₂O₃, and Fe₂O₃, as well as significant variations in CaO among geoenvironments, evidencing the contrast between silicate and carbonate components and the strong control exerted by the parent material on the mineralogical organization of the soils. These characteristics, together with fluvial dynamics, confer specificity to the landscape and have direct implications for understanding pedogenesis.

2026-02-27T00:00:00Z https://repositorio.ufu.br/handle/123456789/48573 2026-03-25T06:21:11Z 2023-09-15T00:00:00Z

Title: A criação do Estado do Tocantins e a (re)divisão territorial do Brasil Abstract: The process of division between the southern and northern regions of State of Goiás dates back to the colonial period and reflects a long history of political efforts in favor of development. This separatist movement culminated in the creation of the state of Tocantins during the Constituent Assembly of 1988, as stipulated by Article 13 of the Transitional Provisions of the Federal Constitution, resulting in the splitting of the state of Goiás. The aim of this dissertation is to analyze a form of domination that exists in the state of Tocantins, the newest Brazilian state, predating its own creation. The chapters and research conducted in this work seek to elucidate the historical process of state formation, centered around the figure of former Governor Siqueira Campos, who influenced Tocantinian society and also examines its socio-economic and political aspects over time. The research explores domination at both the national and local levels, with the purpose of demonstrating that the discourse surrounding the state's creation, emphasizing the "heroic" figure of Siqueira Campos' struggle, reproduces an existing model while simultaneously drawing upon the political capital of the state's first governor.

2023-09-15T00:00:00Z https://repositorio.ufu.br/handle/123456789/48504 2026-03-07T06:30:11Z 2026-02-12T00:00:00Z

Title: Análise espacial do risco de incêndios florestais em área de Cerrado: o caso da Serra da Canastra Abstract: The Serra da Canastra is part of the Serra da Canastra National Park (SCNP), located in southwestern Minas Gerais, Brazil. The study area lies within the Cerrado biome, which is recognized as a system that coevolved with fire. However, transformations that occurred from the second half of the 20th century onward altered the natural fire regime, mainly due to increasing anthropogenic interference. In this context, and considering the ecological dependence on fire, the SCNP has adopted Integrated Fire Management since 2017. The main objective of this dissertation was to identify areas most susceptible to wildfires in the Serra da Canastra through the integration of geomorphological and meteorological factors, using a multicriteria analysis based on the Analytic Hierarchy Process (AHP). The park area was classified into five fire risk levels, ranging from Very Low to Very High. The results indicate that the spatial distribution of risk classes varies significantly according to the different periods analyzed, highlighting the influence of climatic seasonality. Nevertheless, higher risk classes tend to be concentrated near roads and infrastructure, emphasizing the relevance of anthropogenic factors in fire dynamics. The overlay of fire hotspots showed that during the dry season the Moderate risk class concentrated the highest frequency of fire occurrences. Additionally, based on the susceptibility mapping and the integration with hotspot data, it was possible to analyze the severity of a fire scar using spectral indices, revealing marked spatial heterogeneity in fire impacts. Overall, the results underscore the importance of spatial fire risk modeling as a key tool to support planning and decision-making within Integrated Fire Management in the Serra da Canastra National Park.

2026-02-12T00:00:00Z