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Comparison of Two Methods for Total Inorganic Carbon Estimation in Three Soil Types in Mediterranean Area

Author

Listed:
  • Rita Leogrande

    (Council for Agricultural Research and Economics, Research Centre for Agriculture and Environment (CREA-AA), Via C. Ulpiani 5, 70125 Bari, Italy)

  • Carolina Vitti

    (Council for Agricultural Research and Economics, Research Centre for Agriculture and Environment (CREA-AA), Via C. Ulpiani 5, 70125 Bari, Italy)

  • Mirko Castellini

    (Council for Agricultural Research and Economics, Research Centre for Agriculture and Environment (CREA-AA), Via C. Ulpiani 5, 70125 Bari, Italy)

  • Marcello Mastrangelo

    (Council for Agricultural Research and Economics, Research Centre for Agriculture and Environment (CREA-AA), Via C. Ulpiani 5, 70125 Bari, Italy)

  • Francisco Pedrero

    (Irrigation Department, Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Campus Universitario de Espinardo, 30100 Murcia, Spain)

  • Gaetano Alessandro Vivaldi

    (Department of Agricultural and Environmental Science (DiSAAT), Bari University, 70126 Bari, Italy)

  • Anna Maria Stellacci

    (Department of Soil, Plant and Food Sciences (DiSSPA), Bari University, 70126 Bari, Italy)

Abstract

The objective of this study was to compare the results of calcimetric and dry combustion methods for quantitative estimation of soil total inorganic carbon (TIC). To this aim, 117 soil samples from three localities in the Mediterranean area (one in Spain and two in Southern Italy), representing a wide range of total inorganic carbon contents (ranging from 1.9 to 54 g 100 g −1 ), were collected. TIC (expressed as CaCO 3 ) was quantified using the volumetric calcimeter method, as reference, and dry combustion in order to find an accurate and rapid method, suitable for different types of soils. The results revealed a concordance between the two methods compared, as shown by the recovery values close to one, for the whole data set and for data grouped per experimental site. Specifically, the dry combustion method showed slightly greater values of TIC compared to volumetric method, probably due to soil acid pretreatments, in dry combustion, and to an incomplete decomposition of carbonates that would require more time for removal, in a calcimeter method. Linear regression equations between the two methods were not affected by different soil types. Overall, our study demonstrated that the dry combustion was a reliable method and could provide accurate estimates of TIC in soils with different calcium carbonate content.

Suggested Citation

  • Rita Leogrande & Carolina Vitti & Mirko Castellini & Marcello Mastrangelo & Francisco Pedrero & Gaetano Alessandro Vivaldi & Anna Maria Stellacci, 2021. "Comparison of Two Methods for Total Inorganic Carbon Estimation in Three Soil Types in Mediterranean Area," Land, MDPI, vol. 10(4), pages 1-11, April.
    • Handle: RePEc:gam:jlands:v:10:y:2021:i:4:p:409-:d:535518
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    References listed on IDEAS

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    1. Valentina Brombin & Enrico Mistri & Mauro De Feudis & Camilla Forti & Gian Marco Salani & Claudio Natali & Gloria Falsone & Livia Vittori Antisari & Gianluca Bianchini, 2020. "Soil Carbon Investigation in Three Pedoclimatic and Agronomic Settings of Northern Italy," Sustainability, MDPI, vol. 12(24), pages 1-19, December.
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    Cited by:

    1. Reza Khalidy & Emmanuelle Arnaud & Rafael M. Santos, 2022. "Natural and Human-Induced Factors on the Accumulation and Migration of Pedogenic Carbonate in Soil: A Review," Land, MDPI, vol. 11(9), pages 1-13, September.
    2. Daniela De Benedetto & Emanuele Barca & Mirko Castellini & Stefano Popolizio & Giovanni Lacolla & Anna Maria Stellacci, 2022. "Prediction of Soil Organic Carbon at Field Scale by Regression Kriging and Multivariate Adaptive Regression Splines Using Geophysical Covariates," Land, MDPI, vol. 11(3), pages 1-18, March.

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