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Aggregation Stability and Carbon Pools in Extremely Kaolinitic Soils from the East Coast of Brazil as Affected by Land Use Changes

Author

Listed:
  • Tamires Maiara Ercole

    (Department of Soil Sciences and Agriculture Engineering, Federal University of Paraná, Curitiba 80035-050, PR, Brazil)

  • João Bosco Vasconcellos Gomes

    (Brazilian Agricultural Research Company, Embrapa Florestas, Colombo 83411-000, PR, Brazil)

  • Antônio Carlos Vargas Motta

    (Department of Soil Sciences and Agriculture Engineering, Federal University of Paraná, Curitiba 80035-050, PR, Brazil)

  • Mozart Martins Ferreira

    (Department of Soil Science, Federal University of Lavras, Lavras 37200-900, MG, Brazil)

  • Alberto Vasconcellos Inda

    (Department of Soils, Federal University of Rio Grande do Sul, Porto Alegre 90010-150, RS, Brazil)

  • Marcelo Mancini

    (Department of Soil Science, Federal University of Lavras, Lavras 37200-900, MG, Brazil)

  • Nilton Curi

    (Department of Soil Science, Federal University of Lavras, Lavras 37200-900, MG, Brazil)

Abstract

The aim of this study was to evaluate the differential response to land use changes between native forest and croplands regarding the quantitative soil variables of aggregate weight classes and different carbon pools in extremely kaolinitic soils from the east coast of Brazil. In the soil A horizon, the total (TOC) and dissolved (DOC) organic carbon contents were analyzed. In the 0–0.08 m soil layer, the weight and the organic carbon content (Cag) were determined for six size aggregate classes. The mean differential (Δ) of each property for each area was calculated. Overall, the TOC and DOC were greater in the native forest sites over the counterpart cultivated sites within each area. The ΔDOC of all the five areas were negative. The ΔCag of the 1–2 mm and 0.053–0.105 mm soil aggregate classes of Sooretama were the only ones with mean positive values. The ordination of the five areas by the ΔCag in the six soil aggregate size classes isolated Coruripe as the area with the most negative differentials, because of the forest conservation and management of the cropland. The differentials of organic carbon between forest and agricultural use of the analyzed properties did not reveal a possible effect of soil texture.

Suggested Citation

  • Tamires Maiara Ercole & João Bosco Vasconcellos Gomes & Antônio Carlos Vargas Motta & Mozart Martins Ferreira & Alberto Vasconcellos Inda & Marcelo Mancini & Nilton Curi, 2023. "Aggregation Stability and Carbon Pools in Extremely Kaolinitic Soils from the East Coast of Brazil as Affected by Land Use Changes," Sustainability, MDPI, vol. 15(2), pages 1-16, January.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:2:p:1204-:d:1029595
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    References listed on IDEAS

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    1. Alkimim, Akenya & Clarke, Keith C., 2018. "Land use change and the carbon debt for sugarcane ethanol production in Brazil," Land Use Policy, Elsevier, vol. 72(C), pages 65-73.
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