A5024467655- Forest ecology and management
- Agricultural and Food Sciences
- Growth and nutrition in plants
- Soil Management and Crop Yield
- Leaf Properties and Growth Measurement
- Remote Sensing and LiDAR Applications
- Forest Biomass Utilization and Management
- Tree Root and Stability Studies
- Agroforestry and silvopastoral systems
- Wood Treatment and Properties
- Botany and Plant Ecology Studies
- Ecology and Vegetation Dynamics Studies
- Forest Ecology and Biodiversity Studies
- Plant Water Relations and Carbon Dynamics
- Environmental and biological studies
- Seedling growth and survival studies
- Sugarcane Cultivation and Processing
- Forest Management and Policy
- Natural Products and Biological Research
- Genetics and Plant Breeding
- Flowering Plant Growth and Cultivation
- Geography and Environmental Studies
- Weed Control and Herbicide Applications
- Remote Sensing in Agriculture
- Fern and Epiphyte Biology
Universidade Federal do Paraná
2016-2023
Universidade Federal Rural da Amazônia
2022-2023
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro
2020-2023
Universidade Federal de Mato Grosso
2022
Universidade Federal de Santa Maria
2013-2019
Brazilian Agricultural Research Corporation
2019
Universidade Federal de Viçosa
2019
Governo do Estado do Rio Grande do Sul
2018
Lidar point clouds have been frequently used in forest inventories. The higher density has provided better representation of trees plantations. So we developed a new approach to fill this gap the integrated crop-livestock-forest system, sampling inventory, which uses principles individual tree detection applied under different plot arrangements. We use UAV-lidar system (GatorEye) scan an with Eucalyptus benthamii seed On high cloud (>1400 pts. m2), perform comparison two inventory...
The mathematical models used applying the Nonlinear Seemingly Unrelated Regressions (NSUR) or Weighted (WNSUR) methodologies can contribute to generate acceptable and reliable estimates of total aboveground biomass its constituent parts, which are needed implement forest management strategies maintain desirable sustainable carbon stocks. aim this study was: 1) fit sample data with independent nonlinear regression present results obtained from respective statistical for parts trees in native...
Background: Studies show that forest uniformity has a direct correlation with productivity, and measures can serve as indicators of the silvicultural quality plantations. In this context, work aimed to determine survival in young Eucalyptus sp. plantations using attributes obtained from passive sensors boarded on Unmanned Aerial Vehicles (UAV). Methods: Tree height was underestimated by UAV compared those measured Quality Forest Inventory (QFI). Thus, correction factor applied size classes...
Individual tree attributes, such as stem volume and biomass, are usually predicted by using traditional field-derived allometric models. However, these models derived from data collected small areas lack a level of detail components (e.g., stem, branches, leaves). Remote sensing techniques the Quantitative Structure Modelling (QSM) applied on high-density LiDAR emerge promising solution for obtaining extensive detailed attribute estimates. We used board Unmanned Aerial Vehicle (UAV) to...
Researchers on forest biomass seek to develop or find methods of simple application, whose estimators reveals the best performance and provide additivity parts. Tree normally is obtained by scaling tree parts (stem, branches, leaves) separately. When modeled tree, their sum does not match total, which means lack in estimation. We aimed test propose a modeling technique for estimating total aboveground biomass, so that consistency between will be achieved. The techniques 'ratio estimators'...
This study aimed to estimate biomass and organic carbon in stands of Pinus taeda L. at different ages (14, 16, 19, 21, 22, 23 32 years) located the municipality General Carneiro (PR). In order tree components (needles, live branches, dead bark stem wood), destructive quantification method was used which seven trees from each age category were randomly sampled across stand. Stocks found vary between categories, mainly as a result existing dissimilarities association with forest management...
Knowledge of aboveground biomass stock in Seasonal Deciduous Forests is imperative for the implementation mechanisms to reduce emissions from deforestation, forest degradation and land reclamation. The present study analyzed vertical distribution biomasses a Forest Rio Grande do Sul state, Brazil. Seven 12 x m plots were established, all trees inside weighed directly field. Subplots 5 1 marked within main quantify remaining vegetation. Average dry was 316.5 Mg ha-1, with diameter at breast...
Correlation analysis among different variables do not always fully express the real direct effect of one variable on another, especially in forestry. The objective present study was to evaluate correlations direct/indirect effects tree diameter, height, and biomass components total aboveground consequences when using path analysis. We also aimed define which should be included modeling. data were collected from eight sites located Paraná Rio Grande Sul, where diameter 1.30 m ( dbh ), height...
A massa específica básica (MEb) é um dos principais parâmetros das propriedades da madeira. Considerando isso, este estudo teve por objetivo avaliar a variação longitudinal MEb madeira de Cordia americana (Linnaeus) Gottshling & J.E. Mill e Alchornea triplinervia (Sprengel) Müller Argoviensis. As árvores foram selecionadas em fragmento Floresta Estacional Decidual Aluvial, Iraí-RS, que, após o abate, medidas cubadas pelo método Smalian. Para determinação MEb, retirados discos nas...
This paper aimed at testing and adjusting the allometric models for biomass estimate in deciduous forest. The data result from seven 12 x m plots, where 91 trees were cut down. Their diameter breast height (DBH) was greater than 5 cm, measurement made based on DBH, total (H) dry (DAB) each individual. adjusted equations, without stratification, present an determination coefficient (R 2 aj ) between 0.726 0.972, standard error percentage (S yx %) ranging 33.5 to 119.6. best-adjusted model...
O ecossistema formado pela Floresta Estacional Decidual (FED) predomina na região do Alto Uruguai no Estado Rio Grande Sul, Brasil. presente trabalho teve como objetivo analisar de forma descritiva a composição florística e fitossociológica dos componentes arbóreos um fragmento FED Parque Estadual Turvo (PET), localizado Município Derrubadas, RS (floresta Yucumã). Utilizou-se o método área fixa, sendo instaladas 18 unidades amostrais 1.000 m2 aleatória, orientadas acordo com estrada...
A área foliar apresenta estreita relação com a interceptação da energia solar. Dessa forma, o objetivo do presente estudo foi avaliar e índice de em mudas Cordia americana quando submetidas as diferentes condições cultivo, volumes recipientes (90 170 cm³) densidade cultivos (50 100% ocupação bandeja). O delineamento blocos casualizados esquema fatorial 5 x 2 2, cinco repetições 10 plantas avaliadas cada unidade amostral. Foram realizadas avaliações intervalos 20 dias, iniciadas partir dos 60...
O substrato deve ter a capacidade de fornecer o suporte que as raízes necessitam para se desenvolver e sustentar mudas, além nutrientes. objetivo desse estudo foi avaliar efeito do composto orgânico lixo urbano (CO) no crescimento inicial das mudas erva-mate. delineamento utilizado blocos ao acaso com três repetições tratamentos, sendo: (T1) 100% CO, (T2) solo argiloso (T3) 50% CO (1:1, v/v). As foram mantidas sob tela sombreamento, irrigação automatizada. A utilização na concentração...
Abstract The objective of this work was to compare the height-diameter relationship, described by nonlinear biological models, in Eucalyptus benthamii monoculture forestry and three different integrated crop-livestock systems (ICLS): crop-forestry, livestock-forestry, crop-livestock-forestry. trees were evaluated during seven years after planting. Five models fitted evaluate Gompertz’s model selected describe data, although all satisfactorily relationship ICLS. analysis data showed that...
Objetivou-se com o trabalho estimar, avaliar e selecionar melhor índice de competição
The aim of the work was to estimate trunk biomass in a Deciduous Seasonal Forest by using direct and indirect methods. data were obtained from seven 12 x m plots, bringing total 64 trees. Trunk determined method methods which consisted of: 1) Real Volume (RV) multiplied Weighted Average (WA) Arithmetic (AA) specific basic mass wood species found, resulting for (RVWA) (RVAA), 2) Estimated (EV) WAand AA, (EVWA) (EVAA). three plots 11,451 Kg. that had most similar real (TB) value result EVAA...
The objective of this study was to perform and evaluate the modeling for individual aboveground components biomass carbon in palm crops by independent simultaneous estimation different cultivation ages. data collection performed a commercial pam crop Taperoá, state Bahia. Five models were tested best one chosen based on statistical criteria adjusted R2, Syx (%), AIC graphical analysis residuals adjustments equations each component simultaneously. Biomass showed good correlation with stipe...
The wood basic density is one of the main physical properties and correlated with several other characteristics this material. Thus, study aimed to evaluate longitudinal variation Inga marginata Willd. Chrysophyllum gonocarpum (Mart. & Eichler) Engl. three trees each species were shown in a fragment Seasonal Deciduous Forest Alluvial and, after cutting, measured cubed by Smalian’s method. For determination density, discs removed positions 0.1 m base, 25, 50, 75 e 100% commercial height...
Alelopatia é o fenômeno de interações entre plantas com liberação substâncias químicas no meio ambiente que provocam efeitos estimulatórios ou inibitórios na germinação, crescimento e desenvolvimento outras plantas. O presente trabalho teve por objetivo avaliar efeito alelopático extrato canola, germinação sementes cultivares soja. delineamento experimental utilizado foi blocos ao acaso em arranjo fatorial 4x2, fator A composto 4 soja sendo Monasca, Coodetec 219, BMX Potência Força B a...