Characterisation of clays from Alicante province (SE Spain) for use in the recovery of degraded soils

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Title: Characterisation of clays from Alicante province (SE Spain) for use in the recovery of degraded soils
Authors: Jordá Guijarro, Juana Dolores | Tent-Manclus, Jose Enrique | Cerdán, Mar | Sanchez Sanchez, Antonio | Jaramillo, P. | Jordán, Manuel M.
Research Group/s: Evolución Geodinámica de la Cordillera Bética Oriental y de la Plataforma Marina de Alicante | Química Agrícola
Center, Department or Service: Universidad de Alicante. Departamento de Agroquímica y Bioquímica | Universidad de Alicante. Departamento de Ciencias de la Tierra y del Medio Ambiente | Universidad de Alicante. Instituto Multidisciplinar para el Estudio del Medio "Ramón Margalef"
Keywords: Soils | Pollution | Clays | FTIR | XRF
Knowledge Area: Edafología y Química Agrícola | Geodinámica Interna
Issue Date: 12-Apr-2021
Publisher: Springer Nature
Citation: Environmental Geochemistry and Health. 2021. https://doi.org/10.1007/s10653-021-00925-y
Abstract: The goal of this paper is the characterisation of seven clays of the province of Alicante (SE Spain) and their possible use to improve the fertility, water absorption and contaminant-retaining capacity of degraded soils. Three soils affected by the dumping of construction debris were also studied to diagnose the problems and possible recovery strategies. Several physicochemical properties were measured, such as the water holding capacity, soil organic matter, lime, pH, EC and CEC. A high correlationship between mineralogical and elemental composition was obtained. Illite was present in all clays and soils. Some of the samples also contained kaolinite and significant amounts of lime. The CEC, as expected, was more closely related to the organic matter content. Soil organic matter was detected in the second derivative of the FTIR spectra by the signals of the CH2 groups at 2850 and 2919. This way, the FTIR spectrum for the soils of the area would make it possible to estimate both the organic matter content and the CEC. Despite their origin, soils did not show heavy metal pollution; however, salinisation risk seemed to be the most probable cause of degradation. According to the organic matter, lime and illite content, two clays were selected as the most suitable for soil degradation recovery. Furthermore, organic matter additions may help to improve the self-depurative ability of the soil.
URI: http://hdl.handle.net/10045/115019
ISSN: 0269-4042 (Print) | 1573-2983 (Online)
DOI: 10.1007/s10653-021-00925-y
Language: eng
Type: info:eu-repo/semantics/article
Rights: © The Author(s), under exclusive licence to Springer Nature B.V. 2021
Peer Review: si
Publisher version: https://doi.org/10.1007/s10653-021-00925-y
Appears in Collections:INV - Química Agrícola - Artículos de Revistas
INV - GEODIN - Artículos de Revistas

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