Changes in soil carbon stocks after land-use change from native vegetation to pastures in the Atlantic forest region of Brazil

Santos, Camila Almeida dos; Rezende, Cláudia de Paula; Pinheiro, Érika Flávia Machado; Pereira, José Marques; Alves, B. J. R.; Urquiaga, Segundo; Boddey, Robert M.

doi:10.1016/j.geoderma.2018.09.045

Cited by 41 publications

(19 citation statements)

References 43 publications

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“…The results of TOC and Cstock demonstrate the negative impact of incorrect pasture management, in which little vegetation cover limits the SOM entry into the soil (Santos et al, 2019;Segnini et al, 2019;Lopes et al, 2020). Segnini et al (2019) assessed C loss in pastures under different grazing intensities and reported low TOC contents in degraded pasture areas compared to natural vegetation areas.…”

Section: Resultsmentioning

confidence: 97%

“…Segnini et al (2019) assessed C loss in pastures under different grazing intensities and reported low TOC contents in degraded pasture areas compared to natural vegetation areas. Pasture systems can benefit C inputs in the system when properly managed and, consequently, increase Cstock (Salton et al, 2008;Santos et al, 2019;Falcão et al, 2020), favoring the quality of the edaphic environment and contributing to reducing greenhouse gas emissions (Koven et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

“…Systems managed with pastures are important in maintaining soil quality, given the extension of these cultivated areas across the planet (Salton et al, 2008;Santos et al, 2019), especially pastures with adequate management, which present an increase in SOM in surface and subsurface layers due to root decomposition (Coonan et al, 2019;Malcolm et al, 2019). On the other hand, pastures undergoing degradation stages, with low biomass production and soil cover and under the beginning of the emergence of erosive processes, negatively influence soil quality, compromising soil C quality and quantity (Segnini et al, 2019;Zago et al, 2019;Webster et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Soil Carbon Stock in Different Uses in the Southern Cone of Mato Grosso Do Sul

Martins

Troian

Rosset

et al. 2020

Rev. Agric. Neotrop.

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This study aimed to assess the soil density (Sd) and the total organic carbon contents and stocks in different management systems and implementation times in the municipality of Iguatemi, MS, Brazil. A completely randomized design with four replications was applied to four areas: conventional tillage (CT), reformed pasture (RP), and degraded pasture (DP), in addition to a native forest (NF) area with no anthropic action. Disturbed and undisturbed soil samples were collected at depths of 0–0.05, 0.05–0.1, and 0.1–0.2 m. The determination of Sd and total organic carbon content (TOC) allowed calculating the carbon stock (Cstock), the stratification index (SI), and the carbon stock variation (ΔCstock), with subsequent multivariate analysis. The NF area presented the highest TOC contents at all depths compared to the managed areas, with a value of 17.45 g kg−1 at a depth of 0–0.05 m. The RP and NF areas showed similar SI, which was higher in PD, with a value of 2.54. Except for RP, the other managed areas showed a negative ΔCstock in the soil profile relative to the NF area. The RP and NF areas promoted the maintenance of TOC in the soil, while DP and CT compromised the edaphic quality.

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Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Soil Carbon Stock in Different Uses in the Southern Cone of Mato Grosso Do Sul

Martins

Troian

Rosset

et al. 2020

Rev. Agric. Neotrop.

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“…Outros sistemas como as pastagens, quando bem manejadas, são destaques em acúmulos de C e estruturação do solo, principalmente em camadas subsuperficiais, pela ação de suas raízes que, ao se decomporem, adicionam quantidades significativas de MOS (SALTON et al, 2008;SANTOS et al, 2019).…”

Section: Introductionunclassified

Estoque de carbono e agregação do solo sob diferentes sistemas de uso no cerrado

Falcão

Monteiro

Ozório

et al. 2020

Rev. Bras. Ciênc. Ambient. (Online)

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O objetivo do trabalho foi avaliar o estoque de carbono e a agregação dosolo em diferentes sistemas de manejo no município de Aquidauana (MS).Foram coletadas amostras de solo na camada 0,0–0,1 m em seis áreas: soloexposto (SE), sistema de preparo convencional (PC), sistema plantio direto(PD), cana-de-açúcar (CA), pastagem permanente (PP) e mata nativa (MN).Das amostras, determinou-se: carbono orgânico total (COT), densidadedo solo (Ds), sendo calculados o estoque de carbono (EstC) e a variaçãono estoque de carbono (ΔEstC), além da análise de estabilidade de agregados.Obteve-se: diâmetro médio ponderado (DMP), diâmetro médio geométrico(DMG) e porcentagem de agregados retidos nas peneiras. Os resultados foramanalisados em delineamento inteiramente casualizado (DIC) e análise canônica.Os maiores valores de Ds foram observados nos sistemas SE 1,53 Mg m-3,PC 1,46 Mg m-3, PD 1,47 Mg m-3 e CA 1,46 Mg m-3. Os teores de COT das áreasde PP e PD foram superiores ao da MN. O EstC apresentou o mesmo padrãode COT. As áreas de PP e PD exibiram valores de DMP e DMG semelhante aMN. As áreas de PP, PD e MN tiveram mais de 60% dos seus agregados maioresque 2 mm. A análise canônica indicou a formação de três grupos, um com SEe PC, outro apenas com CA e o terceiro composto de PD, PP e MN. O SE e o PCcomprometem o estoque de carbono e a agregação do solo na camada 0–10cm, já a PP e o PD aumentaram o estoque de carbono nessa mesma camada.

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“…Until now, many investigations have evaluated the changes of SOC after the conversion of wetlands to agriculture (Wang, Wang, Feng, Guo, & Chen, 2014) and forestry activities (Ramesh et al, 2019), pastures (Steinman, Conklin, Bohlen, & Uzarski, 2003), aquaculture (Yang et al, 2018), and urbanization development (Pouyat, Yesilonis, & Nowak, 2006), but the depths of soil sampling in these studies were less than 30 cm (e.g., Chen, Arrouays, Angers, Martin, & Walter, 2019; Xu et al, 2017). Many of these studies have just compared SOC contents, fractions, aggregate‐associated organic C and stocks (e.g., dos Santos et al, 2019; Huo et al, 2018; Zhong et al, 2019; Zhu et al, 2020) rather than SOC sources, stability and the mechanisms controlling SOC turnover between wetlands and other land use types. For example, Huo et al (2018) found that dissolved organic carbon, microbial biomass carbon, readily oxidized carbon and readily mineralized carbon in a paddy field were lower than those in natural wetland by 13.8, 35.1, 59.0, and 17.9%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Soil organic matter turnover depending on land use change: Coupling C/N ratios, δ¹³C, and lignin biomarkers

et al. 2020

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Soil organic carbon (SOC) stocks have been greatly depleted across the globe by conversion of wetlands to croplands, agroforestry, and urban areas. Here, we investigated SOC distribution and turnover in four land use types: a wetland, cropland, forestland, and construction land in the Baiyangdian Wetland, Northern China. The C : N ratios were up to 1.70‐times larger in cropland, forestland, and construction land than in the original wetland because of faster N losses compared to C following wetland conversion. The δ13C values of SOC increased with depth in wetland, and showed an overall depletion compared with the other three land use types. Acid‐to‐Aldehyde ratios of syringyl in wetland were 0.72–1.14‐, 0.72–1.72‐, and 1.18–1.43‐times, and cinnamyl/vanillyl ratios were 0.56–1.05‐, 0.22–0.48‐, and 0.40–0.76‐times those of cropland, forestland, and construction land, which reflects faster lignin decomposition rate in wetlands. The β value was defined by the slope of the linear regression between the logarithm of SOC and δ13SOC values, and decreased from cropland over construction land and forestland to wetland, reflecting the faster SOC turnover with the lower β values. However, SOC content and storage were up to 2.29‐ and 2.07‐times higher in wetlands than in soils of other land use types. The combination of C : N ratios, δ13C, and lignin monomer composition can explain the decrease of β value (corresponding to faster SOC turnover), and can be used as effective proxies to evaluate the sources and turnover of SOC in response to land use changes.

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Changes in soil carbon stocks after land-use change from native vegetation to pastures in the Atlantic forest region of Brazil

Cited by 41 publications

References 43 publications

Soil Carbon Stock in Different Uses in the Southern Cone of Mato Grosso Do Sul

Soil Carbon Stock in Different Uses in the Southern Cone of Mato Grosso Do Sul

Estoque de carbono e agregação do solo sob diferentes sistemas de uso no cerrado

Soil organic matter turnover depending on land use change: Coupling C/N ratios, δ¹³C, and lignin biomarkers

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Changes in soil carbon stocks after land-use change from native vegetation to pastures in the Atlantic forest region of Brazil

Cited by 41 publications

References 43 publications

Soil Carbon Stock in Different Uses in the Southern Cone of Mato Grosso Do Sul

Soil Carbon Stock in Different Uses in the Southern Cone of Mato Grosso Do Sul

Estoque de carbono e agregação do solo sob diferentes sistemas de uso no cerrado

Soil organic matter turnover depending on land use change: Coupling C/N ratios, δ13C, and lignin biomarkers

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Soil organic matter turnover depending on land use change: Coupling C/N ratios, δ¹³C, and lignin biomarkers