TCC - Engenharia Florestal (Sede)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/436
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Resultados da Pesquisa
Item Diagnóstico de redes de sementes florestais no Brasil(2024-02-07) Silva, Ana Clara Santana; Santos, Marcone Moreira; http://lattes.cnpq.br/3284707164193715; http://lattes.cnpq.br/5674898094215400Forest seed networks play a fundamental role in the preservation and restoration of forest ecosystems, representing initiatives aimed at conserving native plant species in different biomes. These networks work collaboratively, with the active participation of various social actors, such as local communities, non-governmental organizations (NGOs), research institutions and government entities. The objective of this study was to carry out a comprehensive mapping of forest seed networks in Brazil, with the aim of understanding their distribution, structure and impact on the conservation and restoration of forest ecosystems. For this survey, four methods were adopted: research on the networks' web pages, analysis of Instagram profiles and application of questionnaires, consultation of RENASEM/MAPA with specific filters and analysis of academic articles on Scholar Google, using specific keywords. As a result, it was possible to map twelve forest seed networks in Brazil, identifying four main actors involved. A significant concentration of these networks was evident in the Center-West and Southeast regions of the country, with a significant diversity of native species from the Cerrado, Atlantic Forest and Amazon biomes. The main research institutions and non-governmental organizations were highlighted as the main actors involved in this context.Item Carbonização e análise imediata do carvão vegetal da madeira de Mimosa caesalpiniaefolia Benth e Cupania racemose (Vell.) Radlk(2018-03-01) Gonçalves, Caio Pedro da Silveira; Nogueira, Marcelo; http://lattes.cnpq.br/2791448000405507This paper had the objective of determining the gravimetric yield of the carbonization of Mimosa caesalpiniaefolia and Cupania racemose for charcoal characterization of the wood of these species and indicate the most viable for use as fuel. For the study, six individuals from Mimosa caesalpiniaefolia Benth and six from Cupania Racemosa (Vell.) Radlk were collected at the Pedra Bonita site in Chã-grande, PE, Brazil. The individuals were sectioned in disks along the shaft and later, chips of dimensions 49 x 20 x 4 mm were made along the trunk. The chips were homogenized, comminuted, quarteted and transported to the Forest Technology Laboratory of the Federal Rural University of Pernambuco. Each carbonization was conducted in a total time of 210 minutes at a maximum temperature of 460 ± 10 ° C in a temperature-controlled muffle type oven, rate of 1.4 °C/min after the first hour. NBR 8112/1986 was used, which prescribes the method for the immediate analysis of charcoal. In addition to the NBR, the immediate analysis was conducted according to an adaptation from CETEC (1982) to ASTM (American Society for Testing and Materials) standards. The basic density found for Mimosa caesalpiniaefolia and Cupania racemose was, respectively, 0.87 and 0.83 g / cm 3. The values of ash, volatile matter content, fixed carbon and gravimetric yield for the Sabiá were 1.74%, 46.89%, 44.49% and 44.34%, respectively; and for the Cabotã was 0.25%, 55.26%, 51.36% and 44.12%, respectively. Therefore, both the charcoal coming from Mimosa caesalpiniaefolia and from Cupania racemos have satisfactory characteristics for energy purposes. However, in comparison among the species studied, Cupania racemosa is the most suitable for use as fuel.