https://repositorio.ufu.br/handle/123456789/20865 Sat, 29 Aug 2026 02:08:06 GMT 2026-08-29T02:08:06Z https://repositorio.ufu.br/handle/123456789/49785 Title: Índice de estratificação do carbono orgânico em um Latossolo vermelho sob diferentes sistemas de uso e manejo Wed, 15 Jul 2026 00:00:00 GMT https://repositorio.ufu.br/handle/123456789/49785 2026-07-15T00:00:00Z https://repositorio.ufu.br/handle/123456789/49226 Title: Influência de cancro na madeira de Khaya ivorensis⁠ Abstract: The genus Khaya, introduced to Brazil around the 1970s, has established itself as a promising alternative for the production of high-quality wood, especially the species Khaya ivorensis A. Chev., known as African mahogany. Although exotic, it shows excellent adaptation to Brazilian edaphoclimatic conditions, but its performance has been compromised by canker disease, mainly caused by Lasiodiplodia theobromae. This work aimed to compare the physical and mechanical properties of K. ivorensis wood from trees with and without canker. Equilibrium hygroscopic moisture, basic density, deformations in the axial, radial and tangential planes, volumetric variation and static bending strength were evaluated. The results showed that the presence of canker significantly raised the basic density of the wood and altered radial and tangential deformations, as well as volumetric variation, compromising its dimensional stability. On the other hand, no statistically significant differences were observed in bending strength between the treatments. These findings provide support for management strategies and raw material selection aimed at minimizing losses and improving the utilization of African mahogany wood. Mon, 02 Mar 2026 00:00:00 GMT https://repositorio.ufu.br/handle/123456789/49226 2026-03-02T00:00:00Z https://repositorio.ufu.br/handle/123456789/49049 Title: Uso do escaneamento a laser terrestre na estimativa de atributos florestais a partir de coletas ao nível do solo: um mapeamento cienciométrico Thu, 05 Mar 2026 00:00:00 GMT https://repositorio.ufu.br/handle/123456789/49049 2026-03-05T00:00:00Z https://repositorio.ufu.br/handle/123456789/49027 Title: Ocorrência e fitossítios de Cyathea delgadii Pohl ex. Sternb. no Parque da Matinha, Monte Carmelo - MG Abstract: Understanding environmental changes and their impacts on natural resources is one of the major challenges of the 21st century. Due to the degradation of natural ecosystems, conservation strategies for tree fern species in the Cerrado are urgently needed given their evolutionary, ethnobotanical, and ecological importance. The objective of this study was to establish the occurrence of Cyathea delgadii Pohl ex. Sternb in Matinha Park in Monte Carmelo, Minas Gerais, through the mapping of phytosites, with the aim of supporting conservation and management strategies for the species. The park constitutes an important forest fragment with a significant hydrological function, serving as a transition zone between the Cerrado and Atlantic Forest biomes. The regional survey indicated that the species has a restricted distribution in the Triângulo Mineiro and Alto Paranaíba regions, with only eight confirmed records, this being the first for the municipality of Monte Carmelo. Within the forest fragment, systematic transects were conducted to record and count individuals, noting their phytosanitary condition and location for subsequent mapping of the phytosites. A total of 85 living individuals were recorded, distributed in clusters within humid, shaded, and semi-shaded environments, which were identified as priority zones for the species’ conservation (phytosites). Fifteen dead individuals were counted, indicating that the individuals suffered physiological decline, possibly due to water deficit, which led to the death of the apical meristem. Given the species’ sensitivity to changes in the water regime, the results of this study suggest that Cyathea delgadii Pohl ex. Sternb. has potential as an environmental bioindicator, enabling the monitoring of the species and its associations with local hydrological conditions. Fri, 06 Mar 2026 00:00:00 GMT https://repositorio.ufu.br/handle/123456789/49027 2026-03-06T00:00:00Z