01.1 - Graduação (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2
Navegar
3 resultados
Resultados da Pesquisa
Item Análise de sobrevivência e qualidade de um plantio de Eucaliptos spp. em estágio inicial na Zona da Mata Norte de Pernambuco(2023-09-15) Ferreira, Priscila Geni de Andrade; Fernandes, Ana Paula Donicht; Silva, Richeliel Albert Rodrigues; http://lattes.cnpq.br/4633852866899003; http://lattes.cnpq.br/7392835869663724; http://lattes.cnpq.br/2663481260535032The forest inventory is an essential tool for accurate forestry planning, with the aim of obtaining a homogeneous forest in the future with good expressiveness in terms of diameter and height. The study area was a sugar-alcohol company located in the Zona da Mata Norte region of Pernambuco, in the municipality of Tracunhaém. In order to have a quality forest, it is necessary to periodically monitor the stand from the time the seedlings are planted in the field until they are harvested. The aim of this study was to assess the survival and quality of Eucalyptus hybrids (Eucalyptus urophylla x Eucalyptus camaldulensis) using two sampling methods, using the Pv50% uniformity index. The inventory was carried out at 3 months and 14 months using the circular plot and systematic line sampling methods. The planting was done at a spacing of 3m x 3m in an area close to a community that used it to dispose of its solid waste. Systematic sampling was carried out by randomly establishing the start of the systematic sampling sequence and followed the sequence established for data collection. The sampling per plot was 6 meters long and 113m² in area. The data obtained made it possible to generate information on the percentage of survival, planting failures and mortality, with the systematic line sampling method performing more efficiently, as it generates reliable information when it comes to observing trends in a forest. Survival by systematic sampling at 3 months ranged from 85% to 66% survival, and at 14 months 78% to 63%, while the circular plot method at 1 month had a percentage of 94% to 100% survival and at 14 months 72% to 99%. The study showed satisfactory sampling sufficiency, with a 9% sampling error being admissible, and a coefficient of variation of 43%, showing high variability in the volume of samples. The uniformity index Pv50% of the plots had 37% uniformity, indicating that the silviculture applied to the areas did not provide equal growing conditions for the hybrids. When analyzing the sampling methods based on the analysis of variance statistics, it was possible to see that the systematic sampling method was significant and more efficient for carrying out a survival inventory.Item Monitoramento de plantio experimental de mudas em diferentes padrões de desenvolvimento na arborização da cidade do Recife - PE(2023-09-19) Sayegh, Maria Carolina Cordeiro; Lima Neto, Everaldo Marques de; Torres, José Edson de Lima; http://lattes.cnpq.br/6791561445213969; http://lattes.cnpq.br/7293590726946296In urban afforestation, it is common to observe conflicts between trees and urban elements, which ends up resulting in inadequate management and the mortality of tree individuals. For this reason, it is essential to implement monitoring using urban forest inventory methods. Due to the new planting pattern defined by the municipal law of Recife Nº 18.938, of June 17, 2022, this study aims to monitor the experimental planting of urban tree seedlings in differents development patterns in the city of Recife, Pernambuco, in order to offer to the public power subsidies for the improvement of the afforestation of the city. For this, were evaluated quantitative parameters (relative frequency, height and diameter at breast height), qualitative parameters (phytosanitary parameters) and the survival rate of the seedlings planted with a diameter pattern at breast height of 5 and 10 cm at 180 and 360 days after planting (January and July 2023). In addition, the species that best adapted to the conditions of the region were also evaluated. From this study, it was observed that all experimentally planted seedlings were considered young, and that 52% had good phytosanitary conditions. The rate of survival of the experimental planting exceeded 60%, with 87% survival in the field for seedlings with a diameter at breast height of 5 cm and 62% for seedlings with a diameter at breast height of 10 cm. The species that presents a highlight with a survival rate of over 60% were Poecilanthe parviflora, Ficus enormis, Handroanthus roseoalbus, Cenostigma pluviosum, Libidibia ferrea, Cariniana ianeirensis, Pterocarpus violaceus, Cariniana legalis, Cariniana rubra and Peltophorum dubium. In conclusion, the use of trees established by the new standard of afforestation guarantees a reduction in the mortality rate of planted trees, so, its reduces the constant need for maintenance and replacement of tree individuals.Item Determinação da taxa de sobrevivência de juvenis de Macrobrachium rosenbergii, experimentalmente infectados com Vibrio parahaemolyticus(2023-08-15) Michereff, Gabriel Sobral; Silva, Suzianny Maria Bezerra Cabral da; http://lattes.cnpq.br/8569566022920336; http://lattes.cnpq.br/8665831491740543