Soil carbon stock changes due to edge effects in central Amazon forest fragments

Barros, Henrique Seixas; Fearnside, Philip M.

doi:10.1016/j.foreco.2016.08.002

Cited by 50 publications

(51 citation statements)

References 46 publications

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“…When biomass is burned a small percentage is left in the soil as charcoal (see Fearnside 2016). When standing forest is degraded, a small part of the carbon in decaying biomass is incorporated into the soil as organic matter (Barros and Fearnside 2016), although these additions to the soil carbon pool can eventually be expected to be released.…”

Section: Electronic Supplementary Materialsmentioning

confidence: 99%

Carbon stocks and losses to deforestation in protected areas in Brazilian Amazonia

et al. 2017

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By 2014 approximately 2.2 million km 2 (~43%) of Brazil's Legal Amazonia region had been incorporated into an extensive network of 718 protected areas, which are comprised by 372 indigenous lands, 313 federal, state and municipal (county) conservation units, and 33 Maroon territories (Quilombos). Although protected areas occupy vast expanses in Amazonia, their importance as carbon reserves needs to be better understood. In this study, we estimate the total carbon in 2014 held in protected areas in Brazil's BLegal Amazoniaâ nd BAmazonia biome^regions, and the carbon loss in the portions of these protected areas that were cleared by 2014.In 2014, a total of 33.4 Pg C or 57.0% of all carbon stored in Legal Amazonia was held in protected areas and 32.7 Pg C or 58.5% of all the carbon stored in the Amazonia biome was held in protected areas. By 2014, carbon lost due to clearing in protected areas in Legal Amazonia and the Amazonia biome totaled, respectively, 0.787 (or 2.3%) and 0.702 (or 2.1%) Pg C if one assumes that previously each protected area was entirely covered by native vegetation. If the protection of these areas is effective, about half of the carbon in Brazilian Amazonia will be maintained. Carbon in protected areas has strategic value for environmental conservation and for mitigation of climate change because these areas are under lower risk of being emitted to the atmosphere than carbon stored in vegetation located outside of protected areas, although the effectiveness of protected areas varies.

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Section: Electronic Supplementary Materialsmentioning

confidence: 99%

Carbon stocks and losses to deforestation in protected areas in Brazilian Amazonia

et al. 2017

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“…Dado que los cambios en la composición de la vegetación referidos a mayor abundancia de especies heliófitas con maderas de menor densidad, sumado a cambios estructurales, representados en la mayor densidad de árboles con troncos más delgados, disminuyen el tiempo de residencia del carbono en la madera y aceleran la descomposición, también se pueden estar viendo afectados los procesos ecológicos como, por ejemplo, el flujo de carbono del suelo (Laurance et al, 2011;Romero-Torres y Varela, 2011;Barros y Fearnside, 2016). Por lo cual la composición y estructura de los relictos analizados coincide con la de sitios alterados o fragmentos en los cuales se ha registrado mayor afección del hábitat (e.g.…”

Section: Discussionunclassified

Uso del suelo y estructura de la vegetación en paisajes fragmentados en la Amazonia, Colombia

Elizalde

Armenteras

2018

Colomb. for.

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El seguimiento al uso del suelo y el conocimiento del estado de la vegetación en remanentes de bosques de paisajes representan una metodología fundamental para la planificación del territorio ante la acelerada fragmentación. Por ello, se realizó un análisis multitemporal de la composición y configuración del paisaje (1990-2016) y se establecieron transectos de muestreo de la vegetación. Se identificó una pérdida del 56.34% de áreas de bosque, aumento en el número de parches, reducción de su área y ampliación de la distancia entre relictos, lo que evidencia procesos activos de fragmentación. En los bosques muestreados se registró la dominancia de especies heliófitas generalistas de ecosistemas perturbados y se encontró una reducción en la complejidad estructural asociada a una baja densidad de individuos (DAP≥ 10 cm) en el estrato superior arbóreo, mostrando que la fragmentación del paisaje ha conllevado a la degradación de estos bosques.

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“…Deforestation has accelerated the process of forest fragmentation in the brazilian amazon, resulting in changes in carbon stocks in both biomass and soil (Barros and Fearnside, 2016). Soil carbon under Amazonian forests has important roles in global change, making information on the forms and depths of these stocks of considerable interest in efforts to quantify emissions when deforestation converts these forests into pasture or other land uses.…”

Section: Introductionmentioning

confidence: 99%

Soil Carbon Stocks under Amazonian Forest: Distribution in the Soil Fractions and Vulnerability to Emission

Marques¹,

Luizão²,

Teixeira³

et al. 2017

OJF

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Soil carbon stock changes due to edge effects in central Amazon forest fragments

Cited by 50 publications

References 46 publications

Carbon stocks and losses to deforestation in protected areas in Brazilian Amazonia

Carbon stocks and losses to deforestation in protected areas in Brazilian Amazonia

Uso del suelo y estructura de la vegetación en paisajes fragmentados en la Amazonia, Colombia

Soil Carbon Stocks under Amazonian Forest: Distribution in the Soil Fractions and Vulnerability to Emission

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