Uso das terras, potencial de uso conservacionista e serviçoes ecossistêmicos na UTE Nascentes, Rio das Velhas, MG, Brasil

• Ano de defesa: 2024
• Autor(a) principal: Pedro Henrique Alves de Brito Lisboa
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; Brasil; IGC - INSTITUTO DE GEOCIENCIAS; Programa de Pós-Graduação em Análise e Modelagem de Sistemas Ambientais; UFMG
• Palavras-chave em Português: Gestão do território; Zoneamento ambiental; Gestão de bacias hidrográficas; Conservação dos solos; Potencial de uso conservacionista; Modelagem de dados – Aspectos ambientais; Bacias hidrográficas – Administração; Solos – Conservação; Solo – Uso – Minas Gerais
• Link de acesso: http://hdl.handle.net/1843/77508

The dynamics of land surface change and its impacts on ecosystems and biodiversity affect the provision and regulation of various ecosystem services. Anthropogenic activities, when evidenced through changes in soil use and coverage, influence the soil's support capacity, for example, for water supply or regulation of erosion processes. Recognizing human interference as a factor in the dynamics of land use and cover change is essential so that managers and decision makers can implement plans, projects and actions capable of mitigating and conserving land, seeking to promote the services offered by nature. Adopting the limits of the Nascentes watersheds as a study area, this work had objectives such as developing thematic maps aligned with the quantification of changes in land use and cover and the relationship with ecosystem services, being divided: (1) analyze the change, over a period of 36 years, from 1985 to 2021, at pre-defined intervals, namely, 1985–2003, 2003–2021 and 1985–2021; (2) evaluate land transition and its impacts on potential areas of conservative use; (3) propose practices that contribute to the promotion of ongoing ecosystem services, sustainable development and the vocation of the territory. Using remote sensing together with the Geographic Information System (GIS), it was possible to analyze and quantify the changes and transitions aligned with the application of the Conservationist Use Potential (PUC) method, allowing the vocational potential of the territory to be identified. The results showed that between 1985 and 2021 there was an increase in mining (513.70%), forestry (176.88%) and urban areas (72.86%). Soil transitions, that is, changes between classes, intensified in the areas of PUC Very Low, going from Rock Outcrop to Mining (94.37 ha); from PUC Medium, changing from Forestry to Silviculture (355.67 ha); and, from PUC High, from Pasture and Mosaic of Uses for Urbanized Areas (620.37 ha). By relating the PUC to the land transition, it was possible to identify, from the exploratory analysis, that class changes promoted the loss of the territory's vocation in addition to intensifying the loss of potential for the provision and regulation of ecosystem services.