Sabina Ribeiro

Sabina Ribeiro
Universidade Federal do Acre (UFAC)

Ph.D. in Forest Science

About

47
Publications
32,255
Reads
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1,132
Citations
Introduction
I am a professor at the Forest Engineering course at the Federal University of Acre. My current research covers forest management and mensuration, forest dynamics, quantification of biomass in forests and policies related to climate change. I am teaching management of natural forests and forest plantations.
Additional affiliations
June 2014 - present
Universidade Federal do Acre
Position
  • Professor
March 2013 - May 2014
University of Brasília
Position
  • Professor
August 2011 - February 2013
Universidade Federal de Lavras (UFLA)
Position
  • Professor
Education
February 2010 - February 2011
Georg-August-Universität Göttingen
Field of study
  • Forest Management
August 2007 - July 2011
Universidade Federal de Viçosa (UFV)
Field of study
  • Forest management
August 2005 - July 2007
Universidade Federal de Viçosa (UFV)
Field of study
  • Forest Management

Publications

Publications (47)
Article
Full-text available
Data capturing multiple axes of tree size and shape, such as a tree's stem diameter, height and crown size, underpin a wide range of ecological research - from developing and testing theory on forest structure and dynamics, to estimating forest carbon stocks and their uncertainties, and integrating remote sensing imagery into forest monitoring prog...
Article
Full-text available
Tree mortality rates and the modes of tree death have recently been extensively investigated in the Amazon. However, efforts to describe these processes have not been well distributed across the basin. No study has yet investigated in depth tree mortality process in the unique low, open, bamboo-dominated forests of southwestern Amazonia, a region w...
Article
Tree mortality rates and the modes of tree death have recently been extensively investigated in the Amazon. However, efforts to describe these processes have not been well distributed across the basin. No study has yet investigated in depth tree mortality process in the unique low, open, bamboo-dominated forests of southwestern Amazonia, a region w...
Article
Full-text available
Research that features participation and action orientation, such as participatory action research (PAR), is especially valuable in contexts where there is rapid change, high social inequality, and great uncertainty about the future, which drives stakeholder demands for information to support their goals. The Amazon offers such a context, for it is...
Article
Full-text available
The forests of Amazonia are among the most biodiverse plant communities on Earth. Given the immediate threats posed by climate and land-use change, an improved understanding of how this extraordinary biodiversity is spatially organized is urgently required to develop effective conservation strategies. Most Amazonian tree species are extremely rare...
Article
Tropical forests are the most diverse and productive ecosystems on Earth. While better understanding of these forests is critical for our collective future, until quite recently efforts to measure and monitor them have been largely disconnected. Networking is essential to discover the answers to questions that transcend borders and the horizons of...
Article
Tropical forests are the most diverse and productive ecosystems on Earth. While better understanding of these forests is critical for our collective future, until quite recently efforts to measure and monitor them have been largely disconnected. Networking is essential to discover the answers to questions that transcend borders and the horizons of...
Article
Full-text available
Tropical forest management has both positive and negative effects on climate change, and quantifying these effects is important both to avoid or minimize negative impacts and to reward net positive effects. This study contributes to this effort by estimating the aboveground volume and carbon present in commercial tree species in a managed forest in...
Article
The forests of Amazonia are among the most biodiverse plant communities on Earth. Given the immediate threats posed by climate and land-use change, an improved understanding of how this extraordinary biodiversity is spatially organized is urgently required to develop effective conservation strategies. Most Amazonian tree species are extremely rare...
Chapter
Full-text available
O rendimento, produção e resíduos gerados pelo desdobramento de madeira serrada no sudoeste da Amazônia permanece incerto no contexto das mudanças climáticas. Nesse contexto, determinamos o Coeficiente de Rendimento Volumétrico (CRV) e o Coeficiente de Rendimento de Carbono (CRC) de espécies florestais comerciais provenientes de áreas sob manejo fl...
Chapter
Full-text available
As intervenções realizadas em florestas manejadas causam distúrbios no ecossistema florestal, sendo importante compreender como esses distúrbios impactam o estoque de carbono local, especialmente no contexto das mudanças climáticas. Assim, este estudo objetivou quantificar a biomassa e o estoque de carbono no fuste comercial de árvores madeireiras...
Article
Full-text available
Amazon forest management plans have a variety of effects on carbon emissions, both positive and negative. All of these effects need to be quantified to assess the role of this land use in climate change. Here, we contribute to this effort by evaluating the carbon stocks in logs and timber products from an area under forest management in the southea...
Article
Full-text available
Rural communities are important stewards of forests that provide valuable ecological services. This makes them vital allies to outside organizations seeking to support conservation and development initiatives. However, rural communities also have priorities and needs that may not align with the goals of conservation and development projects. This m...
Article
Full-text available
Forests in the southwestern Amazon are rich, diverse, and dense. The region is of high ecological importance, is crucial for conservation and management of natural resources, and contains substantial carbon and biodiversity stocks. Nevertheless, few studies have developed allometric equations for this part of the Amazon, which differs ecologically...
Article
Full-text available
The sensitivity of tropical forest carbon to climate is a key uncertainty in predicting global climate change. Although short-term drying and warming are known to affect forests, it is unknown if such effects translate into long-term responses. Here, we analyze 590 permanent plots measured across the tropics to derive the equilibrium climate contro...
Article
The sensitivity of tropical forest carbon to climate is a key uncertainty in predicting global climate change. Although short-term drying and warming are known to affect forests, it is unknown if such effects translate into long-term responses. Here, we analyze 590 permanent plots measured across the tropics to derive the equilibrium climate contro...
Article
The Brazilian state of Acre has an extensive natural reserve of bamboo, making it one of the largest in loco gene banks. The aim of this study was to characterize the structure and genetic diversity of Guadua weberbaueri Pilg. in two populations, one native (FAPB) and the other anthropized (FAPBA), using ISSR markers. The results show that the FAPB...
Article
Full-text available
Plant traits—the morphological, anatomical, physiological, biochemical and phenological characteristics of plants—determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research sp...
Poster
Full-text available
We described the effects of different types of disturbance on community woody plants in a fragment of forest in the Southwestern Amazon, Acre, Brazil. The experiment include three treatments with three replicates (90 × 80 m) each: – primary forest (wood). Secondary Youth (capoeira): Experimentally disturbed (deforested, burned and sprayed with herb...
Article
Full-text available
Cerrado is a biodiversity hotspot and possibly the most threatened tropical savanna in the world. Although Cerrado has an important role in the global carbon balance, studies about carbon stock in the biome are rare, especially with estimates per species. Thus, we estimated the carbon content and stock by species in a Cerrado area. We destructively...
Article
Full-text available
The objective of the present study was to quantify the biomass and carbon stock in a Seasonal Semideciduous Forest remnant in southern Minas Gerais. Forest inventory data taken between 2010 and 2013 in permanent plots, was used to estimate biomass with an allometric equation. Basic wood density (Db) and carbon content were determined in the laborat...
Poster
Full-text available
Forests of Southwestern Amazon, beside their exuberant biodiversity, are home of extractivists communities. The current high levels of fragmentation and climate anomalies (e.g. drought and flood) are challenges to guarantee forest conservation and the sustainable use of forest products by Extractivists communities. Chico Mendes Extractive Reserve (...
Poster
Full-text available
We remeasured six permanent plots inSouthwestern Amazonia and present the preliminary results of 10-20 year of forest dynamics.
Article
Full-text available
This study aimed to estimate and compare the carbon stock obtained from three indirect methods in a reforested area of 21 years in southern Minas Gerais State, Brazil. Forest inventory data (diameter and height) from permanent plots, measured between 2010 and 2013, were used to estimate the biomass (dry weight) using an allometric equation. Basic w...
Article
Full-text available
This study aimed to estimate and compare the carbon stock obtained from three indirect methods in a reforested area of 21 years in southern Minas Gerais State, Brazil. Forest inventory data (diameter and height) from permanent plots, measured between 2010 and 2013, were used to estimate the biomass (dry weight) using an allometric equation. Basic w...
Article
Full-text available
Understanding how plants are constructed—i.e., how key size dimensions and the amount of mass invested in different tissues varies among individuals—is essential for modeling plant growth, carbon stocks, and energy fluxes in the terrestrial biosphere. Allocation patterns can differ through ontogeny, but also among coexisting species and among speci...
Article
Full-text available
Understanding how plants are constructed—i.e., how key size dimensions and the amount of mass invested in different tissues varies among individuals—is essential for modeling plant growth, carbon stocks, and energy fluxes in the terrestrial biosphere. Allocation patterns can differ through ontogeny, but also among coexisting species and among speci...
Article
Full-text available
Understanding how plants are constructed; i.e., how key size dimensions and the amount of mass invested in different tissues varies among individuals; is essential for modeling plant growth, estimating carbon stocks, and mapping energy fluxes in the terrestrial biosphere. Allocation patterns can differ through ontogeny, but also among coexisting sp...
Article
Full-text available
Eucalyptus plantations represent a short term and cost efficient alternative for sequestrating carbon dioxide from the atmosphere. Despite the known potential of forest plantations of fast growing species to store carbon in the biomass, there are relatively few studies including precise estimates of the amount of carbon in these plantations. In thi...
Article
Full-text available
Brazil nut is a worldwide-recognized species due to its nuts, traded around the globe playing an important social and economic role in the Amazon. Several studies published information on issues related to nuts production and effects of seed gathering in the species regeneration. Nonetheless, to our knowledge there are no studies focusing on dendro...
Chapter
A literature review was made to identify and discuss obstacles that Brazilian small farmers face to develop a CDM project. Technical and economic issues are the main barriers to the participation of small farmers in these project types. Small farmers’ low education and restrictive income associated with the projects’ vast bureaucracy and high trans...
Article
Full-text available
RESUMO – A região do extremo sul da Bahia é caracterizada por sua extensa produção de eucalipto. Grandes empresas do setor de celulose e papel desempenham importante função na economia da região através dos programas de fomento florestal. Além disso, tem-se que alguns produtores fomentados por essas empresas possuem interesse em incrementar o retor...
Article
A região do extremo sul da Bahia é caracterizada por sua extensa produção de eucalipto. Grandes empresas do setor de celulose e papel desempenham importante função na economia da região através dos programas de fomento florestal. Além disso, tem-se que alguns produtores fomentados por essas empresas possuem interesse em incrementar o retorno financ...
Article
Full-text available
This study aims to quantify the biomass and carbon stock in a crop of physic nut Jatropha curcas in Viçosa-MG at age three years. For biomass quantifi cation, the direct or destructive method was applied to sample plants selected according to height, crown diameter and number of branches. For the determination of dry biomass in the fi eld, the prop...
Article
Full-text available
a b s t r a c t Cerrado is a biome that occupies about 25% of the Brazilian territory and is characterized by a gradient of grassland to savanna and forest formations and by high species richness. It has been severely affected by degradation and deforestation and has been heavily fragmented over the past 4–5 decades. Despite the recognized overall...
Article
Full-text available
This study aimed at evaluating the economic viability of the implementation of projects for carbon credits generation in natural forests and planted forest with native species for farmers in the Atlantic Forest. For this analysis the following scenarios were used: Afforestation/reforestation with native species and early sale of carbon credits - FR...
Article
Full-text available
The preseant of Semideciduous Seasonal Forest in mid-secondary succession stage (capoeira) located in the Minas Gerais forest zone, in Viçosa, the State of Minas Gerais, Brazil. For the volume conversion in biomass, estimates of basic density of 10 species with higher IV (Importance Value) were obtained. The stock of carbon was determined consideri...
Article
Full-text available
The present study aimed to quantify the stocks of volume, total biomass with bark and carbon in a fragment of Semideciduous Seasonal Forest in mid-secondary succession stage (capoeira) located in the Minas Gerais forest zone, in Viçosa, the State of Minas Gerais, Brazil. For the volume conversion in biomass, estimates of basic density of 10 species...
Article
Full-text available
The objective of this study was to quantify the stem biomass without bark and the carbon stock in a mature forest located in the municipal district of Viçosa (MG). The biomass quantification was performed using the non-destructive method, by the use of a mean wood density of species of greater importance value. Three hundred and nineteen tree speci...
Article
O objetivo do presente estudo foi avaliar a viabilidade econômica de diferentes culturas florestais e agrícolas e da pecuária de corte no Estado do Espírito Santo. Para isso, foram escolhidos dados referentes ao cultivo sem o uso de maquinário e com o uso de baixa a média tecnologia, a fim de se aproximar da realidade de pequenos agricultores capix...
Article
Full-text available
A conservação e o plantio de florestas passaram a ter destaque entre as medidas mitigadoras do efeito estufa. Estudos têm sido realizados para verificar o potencial das florestas plantadas e nativas no seqüestro do carbono da atmosfera. Diversas metodologias têm sido aplicadas e desenvolvidas para estimar o estoque de carbono nas florestas. O conhe...
Article
Full-text available
Soil erosion causes extensive damage to society and environment through the loss of agricultural soils and the consequent degradation of water resources. Based on this context, the The Brazilian National Water Agency - ANA developed the "Water Provider Program". Erosion reduction was estimated for the agrosilvopasture activity in the agroforestry u...
Article
The lack of studies on quantification of biomass and sequestered carbon in the Atlantic Forest biome and the increasing demand for Clean Development Mechanism (CDM) projects motivated the execution of this study, aiming at quantifying the biomass and carbon stock of an Atlantic Forest fragment and evaluating the economic viability of five scenarios...

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Projects

Projects (4)
Project
Manejo sustentável da floresta
Archived project
This project will allow children and teenagers to better understand environmental issues in terms of forest health, and to learn skills required for forest monitoring and sustainable forest management (SFM). That in turn can foster the development of positive attitudes towards forest while inculcating skills necessary for SFM, now and in the future.
Archived project
Goal: We pursue two main objectives: 1) improved understanding of forest biodiversity and carbon stocks, and 2) improved capacity of stakeholders to use that knowledge for sustainable forest management. Methods: Biomass, Forest Health Monitoring, Forest Inventory, Forest Dynamics, Capacity Development, Sustainable Forest Management, TraditionalCommunities