Estoque De Carbono Em Plantios De Restauração Florestal, Florestas Secundárias E Maduras Na Amazônia

Sanquetta, Carlos Roberto; Neto, Ernandes Macedo da Cunha; Araujo, Emmanoella Costa Guaraná; Santana, Gabriel Mendes; Bastos, Alexis de Souza; Ferronato, Marcelo Lucian; Sanquetta, Mateus Niroh Inoue; Côrte, Ana Paula Dalla

doi:10.22533/at.ed.00620261013

Cited by 4 publications

(8 citation statements)

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“…Farm Água Limpa (FAL) is the experimental farm of the University of Brasília (UnB), where cerrado stricto sensu (15 • 56 -15 • 59 S and 47 • 55 -47 • 58 W, between 1048 m and 1150 m elevation) is the predominant phytophysiognomy that covers approximately 1480 ha [27,28]. With about 4340 hectares of total area, the farm is part of the Cerrado Biosphere Reserve [29], which includes the Environmental Protection Areas (APA) Gama and Cabeça-de-Veado, the Botanical Garden of Brasília (JBB), and the Ecological Reserve of the Brazilian Institute of Geography and Statistics (IBGE).…”

Section: Study Sitementioning

confidence: 99%

“…With the tree data obtained from the forest inventory, specifically stem diameter and total height, we estimated the aboveground carbon stocks using ecosystem-specific adjusted models [27,28]. We multiplied biomass values by a factor of 0.47 [47] to obtain the carbon stock values.…”

Section: Aboveground Carbon Stock Estimationmentioning

confidence: 99%

“…In this study, aboveground biomass was estimated using models adjusted by [28,45]. Carbon stocks were estimated by multiplying the biomass values by a factor of 0.47 [46].…”

Section: Carbon Stocksmentioning

confidence: 99%

“…In this study, aboveground biomass was estimated using models adjusted by [2 Carbon stocks were estimated by multiplying the biomass values by a factor of 0.4 Tree and shrub aboveground carbon stocks across treatments were estimated as: 0.24564 + 0.01456 * Db 2 * Ht (R 2 = 98.29% and Syx = 25.79%), where EC is the carbon per tree, in kg; Db is the diameter taken at the base (30 cm above ground level) in c is the total height of the tree or shrub, in m; R 2 , is the coefficient of determination; the standard error of the estimate [28].…”

Section: Carbon Stocksmentioning

confidence: 99%

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Decadal Fire Effects on the Structure, Composition, Diversity, and Aboveground Carbon Stocks of a Neotropical Savanna

Neri,

Bomfim,

Pereira

et al. 2023

Forests

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Fire is a common disturbance in the Brazilian savanna (the cerrado), wherein high-frequency fires drive the vegetation structure, composition, function, and dynamics of savanna ecosystems. Under climate change pressure, further understanding of fire–vegetation relationships and interactions can provide new approaches for establishing integrated fire management strategies and can promote post-fire savanna vegetation recovery. To understand how 15 years of annually manipulated burning has affected vertical and horizontal structures of the vegetation, species composition and diversity metrics (species richness, Shannon’s diversity, and Pielou’s evenness), and aboveground carbon stocks, we surveyed all woody plant species with a diameter greater than three centimeters, in 15 plots of a typical Brazilian savanna (cerrado stricto sensu) at an experimental research station in central Brazil (the cerrado biome). The 15 plots (five plots per treatment) had been differently affected by fire events over a decade, and comprised three treatments: (i) annual fire, (ii) legacy fire (>15 years since the last fire event), and (iii) control (not burned in the past 30 years). A non-metric multidimensional scaling (NMDS) analysis indicated that fire had a significant effect on the species composition among the treatments; some species benefited from fire, such as Erythroxylum suberosum, whereas other species propagated better without fire, such as Roupala montana and Dalbergia miscolobium. Over a decade of annual fire events have led to decreases in Shannon’s diversity, species richness, and stem density, which were significantly lower in the annual fire treatment than in the control and legacy fire treatments. Stem density by diameter and height size classes (except for the 1–2 m class and above 8 m class) was higher in the control than that in the annual fire treatment, but the number of dead trees did not differ between the control and the annual fire treatment. Our results also showed that fire was a factor in changes in the evaluated parameters, such as in the annual fire treatment, where fire reduced the amount of biomass, and therefore the carbon stocks. This study suggests that, if burned yearly, typical Brazilian savannas can become less biodiverse in terms of woody plant species which negatively affects their fire resilience. Therefore, fire management practices should focus on determining the frequency of fire disturbances from which these ecosystems may benefit the most.

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Section: Study Sitementioning

confidence: 99%

Section: Aboveground Carbon Stock Estimationmentioning

confidence: 99%

“…In this study, aboveground biomass was estimated using models adjusted by [28,45]. Carbon stocks were estimated by multiplying the biomass values by a factor of 0.47 [46].…”

Section: Carbon Stocksmentioning

confidence: 99%

Section: Carbon Stocksmentioning

confidence: 99%

See 2 more Smart Citations

Decadal Fire Effects on the Structure, Composition, Diversity, and Aboveground Carbon Stocks of a Neotropical Savanna

Neri,

Bomfim,

Pereira

et al. 2023

Forests

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“…Para determinação da biomassa da madeira, biomassa da casca, biomassa do galho e biomassa da folha das espécies florestais distribuídas nos diferentes espaçamentos, no primeiro, terceiro e quinto ano após o plantio, utilizou-se o método direto o qual consistiu na derrubada e pesagem dos diferentes compartimentos das árvores (SANQUETTA, 2002). As massas frescas totais das árvores amostradas foram determinadas em condição de campo, sendo que, de cada compartimento foram retiradas amostras para obtenção do seu teor de umidade em laboratório.…”

Section: Determinação Da Biomassaunclassified

Produção De Biomassa Florestal Em Plantios De Curta Rotação

Eloy¹

2022

Open Science Research III

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Objetivo: Esse trabalho teve como objetivo determinar o efeito da idade e do espaçamento de plantio na produção de biomassa das espécies florestais: Acacia mearnsii De Wild, Eucalyptus grandis W. Hill ex Maiden, Mimosa scabrella Benth e Ateleia glazioviana Baill.Metodologia: Foram considerados plantios com diferentes espaçamentos: 2,0x1,0 m, 2,0x1,5 m, 3,0x1,0 m e 3,0x1,5 m, nas idades de 1, 3 e 5 anos após o plantio. O trabalho foi instalado em delineamento experimental de blocos completos casualizados. A determinação da biomassa aérea consistiu na derrubada e pesagem dos diferentes compartimentos das árvores. Resultados: Os espaçamentos de plantio influenciaram na produção de biomassa dos compartimentos das espécies florestais, nas diferentes idades após o plantio. Os espaçamentos mais adensados proporcionam maiores quantidades de biomassa que os menos adensados. As espécies florestais diferenciam-se em relação à produção de biomassa. Conclusão: O E. grandis (325,1 t ha -1 ) apresenta a maior produção de biomassa, seguido da A. mearnsii (239,3 t ha -1 ), M. scabrella (53,4 t ha -1 ) e A. glazioviana (32,1 t ha -1 ). A madeira é o compartimento que apresenta a maior participação na biomassa total ao longo do tempo, sendo constatada a crescente proporção percentual ao longo das classes etárias, seguido do galho, folha e casca.

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Decadal Fire Effects on the Structure, Composition and Aboveground Carbon Stocks of a Neotropical Savanna

Neri¹,

Bomfim²,

Pereira³

et al. 2023

Preprint

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Fire is a common disturbance in the Brazilian savanna (Cerrado), wherein high-frequency fires drive the vegetation structure, composition, function, and dynamics of savanna ecosystems. Under climate change pressure, further understanding of fire-vegetation relationships and interactions can provide new approaches for establishing strategies for integrated fire management and promote savanna vegetation recovery post-fire. To understand how 15 years of yearly manipulated burning affects the vertical and horizontal structure of the vegetation, the species composition and diversity metrics (species richness, Shannon's diversity, and Pielou's evenness), and the aboveground carbon stocks, we surveyed all woody plant species with a diameter greater than three centimeters in 15 plots of a typical Brazilian savanna (cerrado stricto sensu) at an experimental research station in central Brazil (Cerrado biome). Fifteen plots (five per treatment) were differently affected by fire events over a decade, comprising three treatments: (i) annual fire, (ii) legacy fire (> 11 years since the last fire event), and control (not burned in the past 30 years). Non-metric multidimensional scaling (NMDS) analysis indicated a significant effect of fire on the species composition among treatments and that some species benefited from fire, such as Erythroxylum suberosum, whereas others propagated better without fire, such as Camisala montana and Dalbergia miscolobium. Over a decade of annual fire events led to decreases in Shannon's diversity, species richness, and stem density, which were significantly lower in the annual fire treatment than in the control and legacy fire treatments. Stem density by diameter and height size class (except for the 1-2 m class and above 8 m) was higher in the control than in the annual fire treatment, but the number of dead trees did not differ between the control and annual fire treatments. Our results also showed that fire was a factor in changes in the evaluated parameters, such as annual fire treatment, which reduced the amount of biomass and, therefore, the carbon stock. This study suggests that, if burned yearly, typical Brazilian savannas can become less biodiverse in terms of woody plant species and negatively affect their fire resilience. Therefore, fire management practices should focus on determining the frequency with which these ecosystems may benefit the most from fire disturbances.

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Estoque De Carbono Em Plantios De Restauração Florestal, Florestas Secundárias E Maduras Na Amazônia

Cited by 4 publications

References 0 publications

Decadal Fire Effects on the Structure, Composition, Diversity, and Aboveground Carbon Stocks of a Neotropical Savanna

Decadal Fire Effects on the Structure, Composition, Diversity, and Aboveground Carbon Stocks of a Neotropical Savanna

Produção De Biomassa Florestal Em Plantios De Curta Rotação

Decadal Fire Effects on the Structure, Composition and Aboveground Carbon Stocks of a Neotropical Savanna

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