Forest Biomass Estimation
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Evaluation of the Plant Necromass Component: Methodological Approaches and Estimates in Atlantic Forest, Northeast Brazil
ABSTRACT Necromass is a crucial component for the forest structure. However, there are few studies of necromass quantification in tropical rainforests and lack of efficient sampling methods. This research aimed at verifying the accuracy and effectiveness of sampling methods (Line-intersect sampling - LIS versus fixed area plots - FA) for the estimation of ne
Floresta Ambient.. Publicado em: 01/07/2019
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2. Aerial biomass allometric models for Prosopis affinis Spreng. in native Espinal forests of Argentina
RESUMO A estimativa do carbono armazenado nos ecossistemas florestais requer ferramentas precisas para prever a biomassa. Objetivou-se nesse estudo determinar a biomassa aérea individual de Prosopis affinis e sua distribuição por componente; desenvolver modelos alométricos para prever a biomassa, e estimar os fatores de expansão da biomassa (FEB) em flo
Rev. bras. eng. agríc. ambient.. Publicado em: 01/07/2019
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3. Additivity of tree biomass components using ratio estimate
Abstract: This study deals with the subject biomass estimation. The objective was to achieve the additivity of tree biomass components, which is defined as the compatibility among the component predictions and total tree biomass, using ratio estimates. The biomass estimation model was applied to black wattle trees in forest stands, which include a sample of
An. Acad. Bras. Ciênc.. Publicado em: 03/06/2019
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4. Comparison of carbon sequestration potential in agricultural and afforestation farming systems
In the last few decades, many forests have been cut down to make room for cultivation and to increase food or energy crops production in developing countries. In this study, carbon sequestration and wood production were evaluated on afforested farms by integrating the Gaussian diameter distribution model and exponential diameter-height model derived from sam
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-04
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5. ESTIMATIVA DE BIOMASSA AÉREA E TEOR DE CARBONO DA ESPÉCIE RHIZOPHORA MANGLE L. / ABOVE-GROUND BIOMASS ESTIMATION AND CARBON STOCK IN RHIZOPHORA MANGLE L.
The interest in quantifying mangrove forest biomass has increased in recent years due to the potential that tropical forests have in accumulating atmospheric carbon. The high organic carbon in mangrove attributes an important role in the estimation of global carbon and the processes of climate change mitigation. The objective of this study was to develop all
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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6. Height-diameter relationships of tropical Atlantic moist forest trees in southeastern Brazil
Site-specific height-diameter models may be used to improve biomass estimates for forest inventories where only diameter at breast height (DBH) measurements are available. In this study, we fit height-diameter models for vegetation types of a tropical Atlantic forest using field measurements of height across plots along an altitudinal gradient. To fit height
Scientia Agricola. Publicado em: 2012-02
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7. Uso de imagens ALOS/PALSAR multipolarizadas para detecção de incremento de desflorestamento na Amazônia / Use of multipolarized ALOS/PALSAR image for detection of increment of deforestation in the Amazon
The Amazon forest is a region of rainforest, which has about 5,4 million square kilometers, and with great biodiversity of species on the planet. However, its traditional model of occupation has lead to significant levels of increase of deforestation in the brazilian Legal Amazon. Through remote sensing, these areas can be constantly monitored, offering rate
Publicado em: 2009
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8. Quantificação do estoque de biomassa e análise econômica da implementação de projetos visando a geração de créditos de carbono em pastagem, capoeira e floresta primária / Biomass stock estimation and economic analysis of implementation of projects seeking carbon credit generation in pastures, secondary and primary forests
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 (Afforest
Publicado em: 2007
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9. Caracterização e estimativa de biomassa em fitofisionomias de terra-firme da amazônia central por inventário florístico e por textura de imagens simulação do mapsar (Multi-Application Purpose SAR) / Phytophysionomic characterization and biomass estimation of a central amazon upland forest from floristic inventory and texture of images from simulated mapsar (Multi-Application Purpose SAR)
Sob a premissa de que nas florestas de terra firme da Amazônia Central a variação florística e estrutural sofrem influência do relevo e da proximidade da rede de drenagem, este estudo teve o objetivo de: 1) descrever a composição florística e a estrutura horizontal e vertical ao longo da toposequência; 2) desenvolver modelos preditivos de biomassa a
Publicado em: 2007
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10. Allometric models for estimating the phytomass of the Atlantic Forest of the Serra do Mar, SP. / Modelos alométricos para a estimativa da fitomassa de Mata Atlântica na Serra do Mar, SP".
O objetivo deste estudo foi desenvolver e validar modelos preditores para a fitomassa epigéa da mata atlântica, formação vegetal que cobre a Serra do Mar no estado de São Paulo. Em duas parcelas de 100m2, 82 árvores foram cortadas, ao nível do solo, e anotadas suas medidas de altura e diâmetro. As folhas foram separadas dos ramos para determinação
Publicado em: 2005
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11. Estimation of above-ground phytomass in a tropical forest using TM-LANDSAT 5 e HVR-SPOT 1 data / Estimativa de fitomassa aérea em região de floresta tropical com uso de dados TM-LANDSAT 5 e HRV-SPOT 1
A floresta Amazônica tem sido tema de grandes discussões devido à amplitude das intervenções ali realizadas. Com uma área de 3,5 milhões de Km$^2$, a Amazônia brasileira requer sistemas eficientes de coleta de informações para a gestão racional dos seus recursos florestais. O presente trabalho propõe o desenvolvimento de um método de quantifica�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/12/1992