The objective of this study was to map the spatial distribution aboveground carbon stock (using Regression-kriging) arboreal plants in Atlantic Forest, Semi-arid woodland, and Savanna Biomes Minas Gerais State, southeastern Brazil. database used obtained from 163 forest fragments, totaling 4,146 plots 1,000 m2 distributed these Biomes. A geographical model for estimation parameterized as a function Biome, latitude altitude. This applied over samples residuals generated were mapped based on...

RESUMO O setor florestal brasileiro está em plena expansão e com um aumento gradativo de investidores florestais optando pelo cultivo espécies madeira nobre. mogno africano (Khaya spp.) é uma espécie que vêm se destacando na preferência dos empresários como opção no investimento florestal. Porém, estudos pesquisas sobre a espécie, principalmente Brasil, são escassos. Assim, presente revisão procurou reunir diversas fontes publicação, nacionais internacionais, abordando aspectos históricos do...

In fast-growing forests such as Eucalyptus plantations, the correct determination of stand productivity is essential to aid decision making processes and ensure efficiency wood supply chain. past decade, advances in remote sensing computational methods have yielded new tools, techniques, technologies that led improvements forest management assessments. Our aim was estimate map basal area volume stands through integration inventory, sensing, parametric, nonparametric spatial prediction. This...

This study focuses on the effects of different thinning regimes clonal Eucalyptus plantations growth. Four trials, planted in 1999 and located Bahia Espírito Santo States, were used. Aside from thinning, initial planting density, post fertilization application also evaluated. Before canopy closure, therefore before excessive competition between trees took place, it was found that stands under low densities (667 per hectare) presented a lower mortality proportion when compared to stand higher...

The use of height-diameter models have important applications in the management eucalyptus plantations. aim this paper is to provide adequate height based on diameter and stand variables that could be easily used applied plantation's management. data was tests located Espírito Santo Bahia. A total 312 plots, including 35 different treatments (different initial planting densities, number severity thinning operations, fertilization regimes, among others), four clones. This resulted 2,407...

This study tested the effects of inserting climatic variables in Eucalyptus grandis as covariables a dominant height model, which for site index classification is usually related to age alone. Dominant values ranging from 1 12 years located Southeast region Brazil were used, well data 19 automatic meteorological stations area. The Chapman-Richards model was chosen represent function age. To include environmental modifier included asymptote model. since this parameter responsible maximum...

ABSTRACT Reduced-impact logging is a well known practice applied in most sustainable forest management plans the Amazon. Nevertheless, there are still ways to improve operational planning process. Therefore, aim of this study was create an integer linear programming (ILP) fill knowledge gaps decision support system reduced impact explorations. The minimization harvest tree distance wood log landing assessed. Forest structure aspects, income and production were set model, as adjacency...

Fire risk mapping is a basic planning and protection element. This study presents the application of fuzzy logic in geographic information system (GIS) as an alternative multi-criteria analysis for determining areas highest forest fire natural remnants Brazil. In decision-making process, set factors that are relevant to safety were identified area. For each input variable chosen model, pertinence function was defined best described its influence on risk. Subsequently, variables combined...

Conduziu-se este trabalho com o objetivo de testar diferentes estratégias e metodologias coleta dados, a fim realizar ajustes modelos hipsométricos tradicionais genéricos para melhor estimar altura árvores em plantios Eucalyptus sp. Foram coletados pares diâmetro distribuídas 36 parcelas, provenientes pertencentes à empresa Veracel Celulose S.A. Essas foram divididas tratamentos conforme idade, região, combinação região idade do plantio, totalizando 14 tratamentos. As dados consistiram na...

African mahogany (Khaya spp.) plantations are in expansion Brazil and the world. This fact justifies need for studies related to its growth yield. paper aimed evaluate performance of single-entry double-entry models estimating merchantable total volume Khaya ivorensis before first thinning (7 years) expected final cut (15 years). Volume data was from 100 46 trees Minas Gerais Pará states, respectively, by using an electronic dendrometer (Criterion RD 1000). Observed volumes were calculated...

ABSTRACT Site quality estimation is an important tool in forest management since it useful for modeling growth and yield even-aged stands. Data from African mahogany (Khaya ivorensis A. Chev.) Brazilian plantations were used to develop a model predict dominant height growth, comparing dynamic base-age invariant site index models with the guide curve method (static models). For evaluation of candidate qualitative quantitative criteria used. We also verified stability models, preferring...

Here we model and describe the wood volume of Cerrado Sensu Stricto, a highly heterogeneous vegetation type in Savanna biome, state Minas Gerais, Brazil, integrating forest inventory data with spatial-environmental variables, multivariate regression, regression kriging. Our study contributes to better understanding factors that affect spatial distribution this as well allowing representation heterogeneity biome. Wood estimates were obtained through models using different environmental...

African mahogany is the common name of species from Khaya genus and yields high value timber. It planted in monocultures agrosilvipastoral systems Brazil since 90's. Here we relate taxonomic identification most Brazil, changing ivorensis A. Chev. to K. grandifoliola C. DC. Currently estimate there circa 50 thousand hectares plantations half concentrated Southeast region, with grandifoliola, followed by senegalensis (Desr.) Juss.

ABSTRACT Wood demand is increasing in quality and quantity, economic studies are fundamental to analyze the feasibility of forest projects. These researches line with management silvicultural studies, highlighting growth yield modeling. This paper proposes an evaluation implementation African mahogany stands Brazil under different perspectives management. Data from plantations ranging 1.1 15 years old Brazilian regions. Financial analysis was undertaken using Net Present Value (NPV),...

ABSTRACT Eremanthus erythropappus, commonly known as candeia, is an income-generating tree native to Brazil. This due the high durability of its wood and essential oil containing active component alpha bisabolol. Despite this economic potential, until early 2000's no studies existed explore sustainable management in areas which species naturally occurs or for establishing commercial plantations. study proposes new strategies based on individual model, evaluates growth behavior candeia trees...

O objetivo deste trabalho foi avaliar a possibilidade de se estimar o diâmetro à altura do peito (DAP) com os dados e número árvores derivados escâner laser aerotransportado (LiDAR, "light detection and ranging"), determinar volume madeira talhão Eucalyptus sp. partir dessas variáveis. total detectadas obtido uso da filtragem máxima local. A plantas estimada pelo LiDAR apresentou tendência não significativa subestimativa. estimativa DAP coerente valores encontrados no inventário florestal;...

Adaptations to climate change rely on understanding the dynamics of plant biomass stocks planet. The high levels deforestation in Cerrado have transformed this biome into second-largest Brazilian source carbon emissions. objective study was develop a method accurately estimate aboveground and total values among shrublands, savannas, forests located biome, using an allometric equation adjusted from canopy height, obtained through optical laser sensors. results show similarity between...

The purpose of this study was to compare Beta, Gamma, Johnson's SB and Weibull functions fitted by different methods for describing the horizontal structure Khaya ivorensis (African mahogany) plantations in Brazil. database comprised 128 plots from six at varying ages. function fits were compared using Kolmogoroff–Smirnoff test, mean bias absolute error number trees basal area per hectare diameter class. outperformed other functions, although all provided an adequate fit. best method moments...

This study aimed to analyze the effect of different thinning intensities on stem taper Eremanthus incanus in naturally regenerated stands. Data from an experiment located at Morro do Pilar/MG and installed 2002 were used. About three years after a fire occurrence that provided intense regeneration incanus, five applied compared with control treatment no thinning. Seven half installation trial 360 standing trees treatments diameter classes scaled. Three equations tested: Schöepfer (1966),...

This study investigated the behavior of climatic variables inserted as inclination modifiers Chapman-Richards model for estimating dominant height. Thus, 1507 data pairs from a Continuous Forestry Inventory clonal eucalyptus stands were used. The are located in States Espírito Santo and southern Bahia. height because is key variable whole prognosis system. models adjusted using 1360 pairs, where rest was reserved validation. selected by Backward construction method. indicated method were:...