Authors:
Lisardo Núñez-Regueira University of Santiago de Compostela Research Group TERBIPROMAT, Department of Applied Physics, Faculty of Physics, Av. J. M. Suárez Núñez s/n. Santiago de Compostela Spain 15782 Santiago de Compostela Spain 15782

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J. Proupín-Castiñeiras University of Santiago de Compostela Research Group TERBIPROMAT, Department of Applied Physics, Faculty of Physics, Av. J. M. Suárez Núñez s/n. Santiago de Compostela Spain 15782 Santiago de Compostela Spain 15782

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J. Rodríguez-Añón University of Santiago de Compostela Research Group TERBIPROMAT, Department of Applied Physics, Faculty of Physics, Av. J. M. Suárez Núñez s/n. Santiago de Compostela Spain 15782 Santiago de Compostela Spain 15782

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Maria Villanueva-López University of Santiago de Compostela Research Group TERBIPROMAT, Department of Applied Physics, Faculty of Physics, Av. J. M. Suárez Núñez s/n. Santiago de Compostela Spain 15782 Santiago de Compostela Spain 15782

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O. Núñez-Fernández University of Santiago de Compostela Research Group TERBIPROMAT, Department of Applied Physics, Faculty of Physics, Av. J. M. Suárez Núñez s/n. Santiago de Compostela Spain 15782 Santiago de Compostela Spain 15782

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Abstract  

The design of a rigorous experimental procedure is the basis for any environmental study. In this work, the basic criteria are established for determination of soil health using microcalorimetry as the main technique complemented by the study of physical (temperature, moisture, porosity, hydraulic conductivity, density and plasticity), chemical (pH and C to N ratio) and biological features (most probable number of microorganisms and organic matter content), and also environmental properties in the form of bioclimatic diagrams. The design was elaborated using as a reference a humic eutrophic-Cambisol subjected to afforestation with P. pinaster Aiton situated in Viveiro (Galicia, NW Spain). Main results of this study refer to total heat evolved during the processes (2.65 to 3.81 J g–1), time to reach the maximum of the peak from 16.17 to 19.29 h, and microbial growth rate constant from 0.0732 to 0.1043 h–1. These results change over the year as they are influenced by the action of environmental parameters over soil microbial activity. The results are in close agreement with some others previously reported using different experimental techniques.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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