The conversion of grassland to acacia forest as an effective option for net reduction in greenhouse gas emissions

Godoi, Stefânia Guedes de; Neufeld, Ângela Denise Hubert; Ibarr, Mariana Alves; Ferreto, Décio Oscar Cardoso; Bayer, Cimélio; Lorentz, Leandro Homrich; Vieira, Frederico Costa Beber

doi:10.1016/j.jenvman.2015.11.057

Cited by 15 publications

(10 citation statements)

References 39 publications

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“…The CH 4 influxes were predominant in this study (81 % for E1 and E2, and 57 % for CE), reaffirming that forest soils are common sinks of this gas. The same behavior was observed in other studies (Godoi et al, 2016;Liu et al, 2017). In general, well-drained soils consume atmospheric CH 4 (Ciais et al, 2013;IPCC, 2013) and indicate CH 4 uptake from the atmosphere mediated essentially by methanotrophic bacteria due to reduced soil water content, favoring diffusion of atmospheric CH 4 into soils (Hiltbrunner et al, 2012).…”

Section: Temporal Variability Of Ch 4 and N 2 O Fluxes And Environmensupporting

confidence: 78%

“…Low rates of N 2 O and CH 4 emissions were also documented in other studies on forests in Brazil, Australia, and China. Godoi et al (2016) observed similar fluxes of CH 4 (-22.7 and -24.4 mg CH 4 m -2 h -1 ) and N 2 O (5.3 and 5.4 mg N 2 O m -2 h -1 ), for soils with Acacia and native vegetation, respectively. Werner et al (2006) observed values near 7 mg N 2 O m -2 h -1 in reforested areas in China, under tropical conditions, while Allen et al (2009) reported a high CH 4 uptake (-1 to -50 µg CH 4 m -2 h -1 ) and low N 2 O fluxes (-5 to 50 µg N 2 O m -2 h -1 ) in subtropical Australian soils under Eucalyptus.…”

Section: Temporal Variability Of Ch 4 and N 2 O Fluxes And Environmenmentioning

confidence: 61%

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CH4 and N2O fluxes from planted forests and native Cerrado ecosystems in Brazil

Oliveira

Ribeiro

Ferreira

et al. 2021

Sci. agric. (Piracicaba, Braz.)

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Forest soils are N 2 O sources and commonly act as CH 4 sinks. This study evaluated the dynamics of the CH 4 and N 2 O fluxes of soils under Eucalyptus plantations and native Cerrado vegetation, as well as possible interactions between environmental factors and fluxes. The study was carried out in the Distrito Federal, Brazil, during 26 months, in three areas: in two stands of the hybrid Eucalyptus urophylla × Eucalyptus grandis, planted in 2011 (E1), and in 2009 (E2) and native Cerrado vegetation (CE). Measurements to determine the fluxes in a closed static chamber were carried out from Oct 2013 to Nov 2015. Soil and climate factors were monitored. During the study period, the mean CH 4 fluxes were-22.48,-8.38 and-1.31 μg CH 4 m-2 h-1 and the mean N 2 O fluxes 5.45, 4.85 and 3.85 μg N 2 O m-2 h-1 from E1, E2 and CE, respectively. Seasonality affected plantations in the studied sites. Cumulative CH 4 influxes were calculated (year-1:-1.86 to-0.63 kg ha-1 yr-1 ; year-2:-1.85 to-1.34 kg ha-1 yr-1). Cumulative N 2 O fluxes in the three sites were ≤ 0.85 kg ha-1 yr-1. The change in land use from Cerrado to Eucalyptus plantations did not significantly changed regarding greenhouse gases (GHG), compared to the native vegetation. Flux rates of both gases (N 2 O and CH 4) were low. Temporal variations in GHG fluxes and different ages of the stands did not cause significant differences in cumulative annual fluxes.

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Section: Temporal Variability Of Ch 4 and N 2 O Fluxes And Environmensupporting

confidence: 78%

Section: Temporal Variability Of Ch 4 and N 2 O Fluxes And Environmenmentioning

confidence: 61%

CH4 and N2O fluxes from planted forests and native Cerrado ecosystems in Brazil

Oliveira

Ribeiro

Ferreira

et al. 2021

Sci. agric. (Piracicaba, Braz.)

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“…Brazil is one of the world's greatest agricultural producers and consequently generates great amounts of biomass residues [8,9]. Thus, numerous organic residues, such as sugarcane straw and filtercake, rice husk, poultry manure, sawdust, and sewage sludge, have been converted in biochar and applied to agricultural soils, originating promising field and greenhouse experiments [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Charcoal Fine Residues Effects on Soil Organic Matter Humic Substances, Composition, and Biodegradability

et al. 2019

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Biochar has been shown as a potential mean to enhance carbon sequestration in the soil. In Brazil, approximately 15% of the produced charcoal is discarded as charcoal fines, which are chemically similar to biochar. Therefore, we aimed to test charcoal fines as a strategy to increase soil carbon sequestration. Charcoal fines of hardwood Mimosa scabrella were incorporated into a Cambisol down to 10 cm (T1 = 0 and T4 = 40 Mg ha−1) in Southern Brazil. Soil samples were collected (0–30 cm) 20 months after charcoal amendment. Soil organic matter (SOM) acid extract, humic acid, fulvic acid, and humin fractions were separated. Solid-state 13C nuclear magnetic resonance (NMR) spectra from charcoal and SOM in T1 and T4 were obtained before and after 165 days of incubation under controlled conditions. Charcoal increased soil carbon as fulvic (10–20 cm) and humic acids (10–30 cm) and, especially, as humin (0–5 cm), which probably occurred due to the hydrophobic character of the charcoal. The 13C NMR spectra and mean residence times (MRT) measured from incubation essays indicated that the charred material decomposed relatively fast and MRT of T1 and T4 samples were similar. It follows that the charcoal fines underwent similar decomposition as SOM, despite the high charcoal dose applied to the soil and the high aryl C contribution (78%) to the total 13C intensity of the charcoal NMR spectra.

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“…Agroforestry systems may have a greater return than monoculture systems due to the diversified component production in consortium [5,[54][55][56]. Examples of the benefits coming from this system are higher yields of timber and wood and greater animal weight gain due to greater feed availability and animal thermal comfort [51,57].…”

Section: Agroforestry Systemsmentioning

confidence: 99%

Rhizobial inoculation in black wattle plantation (Acacia mearnsii De Wild.) in production systems of southern Brazil

et al. 2019

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Black wattle (Acacia mearnsii De Wild.) is a tree legume native to southeast Australia, but present in all continents. Today it covers about 142,400 ha in Brazil, with plantations concentrated in the southern region of the country. Black wattle may form nodules and establish rhizobial symbiosis capable of fixing N 2 , but rhizobial inoculation is not done in commercial plantations. About 40 kg ha −1 of urea is applied during seedling transplantation. In this review, evidences by which rhizobial inoculation affects monoculture, mixed cultivation, and agroforestry black wattle production systems were searched in literature. Previous measurements in cultivated forests have indicated that biological nitrogen fixation in black wattle may provide up to 200 kg of N ha −1 year −1 to the soil. Therefore, rhizobia inoculation may bring several opportunities to improve black wattle production systems. Black wattle is not a very selective partner in the rhizobial symbiosis, but the genus Bradyrhizobium dominates the rhizobial diversity of black wattle nodules. Investigation on rhizobial diversity in soils where the crop is cultivated may represent an opportunity to find more effective rhizobia strains for inoculants. The successful history of biological nitrogen fixation in grain legumes must inspire the history of tree legumes. Microbiology applied to forestry must overcome challenges on the lack of trained professionals and the development of new application technologies.

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The conversion of grassland to acacia forest as an effective option for net reduction in greenhouse gas emissions

Cited by 15 publications

References 39 publications

CH4 and N2O fluxes from planted forests and native Cerrado ecosystems in Brazil

CH4 and N2O fluxes from planted forests and native Cerrado ecosystems in Brazil

Charcoal Fine Residues Effects on Soil Organic Matter Humic Substances, Composition, and Biodegradability

Rhizobial inoculation in black wattle plantation (Acacia mearnsii De Wild.) in production systems of southern Brazil

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