Environmental Scanning Electron Microscopy Application for Brackish Water Irrigation Impact on Soil

Please use this identifier to cite or link to this item: http://hdl.handle.net/10045/89889
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Title: Environmental Scanning Electron Microscopy Application for Brackish Water Irrigation Impact on Soil
Authors: Valdes-Abellan, Javier | Candela, Lucila | Medero, Gabriela M. | Buckman, Jim
Research Group/s: Ingeniería Hidráulica y Ambiental (IngHA)
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Civil
Keywords: Environmental scanning electron microscopy | Brackish water irrigation | Soil response
Knowledge Area: Ingeniería Hidráulica
Issue Date: 14-Mar-2019
Publisher: Alliance of Crop, Soil and Environmental Science Societies (ACSESS)
Citation: Vadose Zone Journal. 2019, 18: 180046. doi:10.2136/vzj2018.03.0046
Abstract: We investigated soil response to irrigation with slightly brackish water (1200 mg L−1 total dissolved solids on average) in a semiarid environment at the microscopic scale using environmental scanning electron microscopy (ESEM) applied in static and dynamic modes, which allowed comparison between nonirrigated and 3-yr-irrigated soil samples to determine the impact of applied brackish water. Results indicate that (i) there was a change in soil hydrophilic behavior by the continuous accumulation of water-borne salt in the soil matrix, (ii) compared with nonirrigated samples, the wetting process occurred more gradually for the 3-yr-irrigated sample, (iii) the wetting process started at a lower vapor pressure for the 3-yr-irrigated sample, (iv) water vapor pressure in the chamber at full saturation was lower for the 3-yr-irrigated sample, and (v) the presence of heavy metals in the soil was more frequent in irrigated samples. Our results show that ESEM is a useful technique to determine the impacts on soil of irrigation with slightly brackish water.
Sponsor: This study forms part of the CGL2013-48802-C3-3-R projects financed by the Spanish Ministry of Science and Innovation and of the GRE15-19 project financed by the University of Alicante (Spain).
URI: http://hdl.handle.net/10045/89889
ISSN: 1539-1663 (Print) | 1539-1663 (Online)
DOI: 10.2136/vzj2018.03.0046
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2019 The Author(s). This is an open access article distributed under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Peer Review: si
Publisher version: https://doi.org/10.2136/vzj2018.03.0046
Appears in Collections:INV - IngHA - Artículos de Revistas

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