A5021325268- Forest ecology and management
- Wood Treatment and Properties
- Agricultural and Food Sciences
- Tree Root and Stability Studies
- Tree-ring climate responses
- Wood and Agarwood Research
- Natural Fiber Reinforced Composites
- Soil Management and Crop Yield
- Plant Pathogens and Fungal Diseases
- Plant Surface Properties and Treatments
- Materials Engineering and Processing
- Plant Water Relations and Carbon Dynamics
- Leaf Properties and Growth Measurement
- Remote Sensing and LiDAR Applications
- Lignin and Wood Chemistry
- Plant-Derived Bioactive Compounds
- Cultural Heritage Materials Analysis
- Bamboo properties and applications
- Botanical Research and Applications
- Manufacturing Process and Optimization
- Growth and nutrition in plants
- Youth, Drugs, and Violence
- Plant biochemistry and biosynthesis
- Forest Biomass Utilization and Management
- Geography and Environmental Studies
Universidade Federal Rural do Rio de Janeiro
2016-2025
ORCID
2021-2022
Universidade Federal do Rio de Janeiro
2019
Universidade Federal de Mato Grosso
2016
University of Lisbon
2016
ABSTRACT Background: The development and application of new technologies solutions are extremely important to manage monitor urban forestry prevent accidents resulting from falls that often result in social property damage. To evaluate the internal conditions a tree, it is recommended use indirect methods, both for trunk root system. However, existing methods can predict properties at lower level some situations, lead misinterpretation actual phytosanitary status evaluated specimen cause...
Quantificar os serviços ecossistêmicos da arborização auxilia no planejamento urbano e gestão ambiental. Este estudo avaliou a composição vegetação estimou de regulação nos bairros Centro Norte (CN) Sul (CS) Cuiabá, Brasil. Foram analisadas 595 680 árvores/arbustos/palmeiras CN CS, respectivamente. Para cada indivíduo, foram coletadas informações sobre identificação, forma vida conflitos com redes aéreas, além variáveis dendrométricas. Utilizando o modelo i-Tree Eco v6.0.32, estimados...
Abstract Identifying wood species using anatomy is an important tool for various purposes. The traditionally used method based on the macroscopic description of physical and anatomical characteristics wood. This requires that identifier has thorough technical knowledge about anatomy. A possible alternative to this task use intelligent systems capable identifying through analysis digital images. In work, 21 were generate a set 2000 These produced with smartphone under field conditions, from...
This study investigated the color stability in a heat treatment of teak wood (Tectona grandis) exposed to ultraviolet radiation under accelerated aging conditions.Nine trees from three different spacing levels were used.Samples 150 mm x 75 20 prepared and divided into two groups: heartwood sapwood.Two (180 200°C) used.The was measured every 42 hours with portable spectrophotometer using CIE-Lab system.Accelerated performed QUV/Spray chamber.The total cycle exposure 168 at 340 nm.Tree...
This study aimed to evaluate surface roughness of heat treated Eucalyptus grandis wood after peripheral planning and sanding performed in directions the grain against grain.For machining tests, workpieces were collected from two different regions radial direction, as follows: internal, nearby pit; external, bark.Heat treatment was carried out by heating samples at a maximum temperature 190ºC, with total duration 390 minutes.Heat control underwent tests.The quality machined surfaces assessed...
O Schizolobium parahyba (Vell.) Blake, popularmente conhecido por “guapuruvu”, apresenta anéis de crescimento distintos, evidenciados maior espessamento suas paredes no lenho tardio e pela presença parênquima em faixa marginal. Neste contexto, o objetivo deste estudo foi construir a cronologia dos árvores S. ocorrência na ReBio Tinguá, RJ, visando gerar conhecimento sobre dinâmica da espécie, bem como sensibilidade formação fatores climáticos. Das 30 selecionadas foram coletadas quatro...
Durante o crescimento, as árvores produzem diferentes tipos de tecido lenhoso. O xilema produzido nos primeiros anos até certa idade cambial é denominado lenho juvenil e apresenta propriedades físicas, mecânicas, químicas anatômicas do após cambial, isto é, quando células câmbio já amadureceram. Dessa forma, um prévio conhecimento sobre a qualidade da matéria-prima produzida fundamental importância para melhor aplicabilidade material. Com base nesse contexto, este trabalho objetivou, partir...
The bark of Goupia glabra trees grown in a native forest area the Amazon region Brazil was anatomically and chemically characterised for potential use as chemical source bio-refineries.The is silvery-grey to reddish-grey, with scaly rhytidome composed 2 3 periderms small phellem content.The phloem has abundant sieve tube members conspicuous presence sclerified nodules fibersclereids or sclereids; no fibers were observed.The had following average composition (dry mass): 5.2% ash, 24.6% total...
The variable environmental conditions of the Amazon forest can affect wood properties tree species distributed across its diverse phytophysiognomies. Carapa guianensis (Andiroba) occurs in upland and floodplain forests, oil seeds have multiple uses. aim this study was to evaluate C. trees estuarine forests River. Eight were selected, with four being from forests. fiber length, wall thickness, vessel diameter frequency, microfibril angle, specific gravity shrinkage evaluated. juvenile mature...
This study aimed to evaluate the effect of thermal treatment on physical properties juvenile and mature woods Eucalyptus grandis.Boards were taken from 30-year-old E. grandis trees.The boards thermally modified at 180 °C in Laboratory Wood Drying Preservation UNESP, Botucatu, Sao Paulo state, Brazil.The results showed that modification caused: (1) decrease 6.8% density 0% equilibrium moisture content wood; (2) significant decreases 14.7% 35.6% maximum volumetric swellings woods,...
ABSTRACT Tension wood is an important anatomical structure for its participation in the orientation of trunk and architecture branches as a function structural reinforcement. However, presence large amounts significantly affects technological properties wood, just rubber tree. Nevertheless, there still demand information about origin, distribution features this species. Thus, study aims to characterize cellular structures tension opposite Hevea brasiliensis (rubber tree), well radial...
The aim of this study was to analyze the growth rings and evaluate effect urban environment on Terminalia catappa L. under intense industrial activity. At least two wood samples were obtained from each tree with an increment borer. regions Volta Redonda (Northwest Southeast regions) Resende (used as control) established for collection. dendrochronological potential T. indicated sensitivity precipitation temperature in a more exposed steel pollution area because there differences when...
In this study, we aimed evaluate the behavior of brown-rot fungus Gloeophylum trabeum and white-rot Pycnoporus sanguineus on thermally-modified Eucalyptus grandis wood.To end, boards from five-year-eleven-month-old E. trees, taken Duratex-SA company stock, were between 180 °C 220 in Laboratory Wood Drying Preservation at Universidade Estadual Paulista -UNESP, Botucatu, Sao Paulo state Brazil.Samples each treatment tested according to ASTM D-2017 (2008) technical norm.The accelerated decay...
Os objetivos deste estudo foram determinar a variação das propriedades físicas da madeira de Eucalyptus pellita F. Muell; dimensões dos elementos anatômicos pelo método aquisição e análise imagens digitais através do software CELL F (Olympus®); as correlações existentes entre variáveis estudadas.Amostras não destrutivas (baguetas 20 mm diâmetro) retiradas árvores com 15 anos idade dividas em três posições: cerne, transição cerne/alburno alburno
O uso múltiplo das florestas plantadas pelo setor industrial de base florestal vem aumentando gradativamente. Hoje, a utilização da madeira eucalipto para fins mais nobres já é uma realidade. Porém, algumas limitações como presença tensões crescimento são responsáveis por grandes perdas no setor. As geram rachaduras topo em toras e tábuas também empenamentos nas peças após o desdobro. Dentro desse contexto, este trabalho objetivou avaliar essas diferentes classes diamétricas alturas,...
O objetivo deste estudo foi determinar o efeito do tratamento térmico na alteração da cor madeira de teca (Tectona grandis L. f.), proveniente plantios diferentes espaçamentos. Amostras cerne e alburno foram tratadas a 180 200ºC durante 2h30min. As análises colorimétricas realizadas com auxílio espectrofotômetro CM 2600d no sistema CIE L*a*b*. Após tratamento, teve perda luminosidade, tornado-se mais escura, que se mostrou acentuado para 200ºC. madeiras apresentaram comportamentos as...
O plantio de florestas comerciais contribui decisivamente na geração benefícios socioeconômicos e ambientais, conferindo caráter sustentabilidade aos empreendimentos base florestal. Eucalyptus grandis Hill Ex Maiden se destaca por ser uma das espécies mais cultivadas em reflorestamentos no Brasil. objetivo deste estudo foi determinar as correlações entre a precipitação produção da madeira com 23 anos idade provenientes um comercial município Rio Claro, RJ. incremento anual determinado...
Climate change is expected to increase the occurrence of severe droughts in tropics, and little known about its influence on tree dynamics. Tree-ring width remote sensing tools can help understand impacts climate growth. We evaluated applicability NDVI obtain phenological metrics (e.g., start, peak, end, length growth season) explored relationship with tree-ring Tectona grandis (teak). The were correlated each other, both local (temperature, precipitation, solar insolation, Standardized...