Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/115535
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Temporal changes in soil salinity at four saline wetlands in NE Spain |
Autor: | Herrero Isern, Juan CSIC ORCID ; Castañeda del Álamo, Carmen CSIC ORCID ; Castañeda del Álamo, Carmen CSIC ORCID | Palabras clave: | Halophytes Hypersaline wetlands Salinity profile Soil salinity Ebro Valley |
Fecha de publicación: | oct-2015 | Editor: | Elsevier | Citación: | Herrero J, Castañeda C. Temporal changes in soil salinity at four saline wetlands in NE Spain. Catena 133: 145–156 (2015) | Resumen: | The knowledge of soil salinity and the temporal changes of its distribution in the soil profiles can give warnings for the protection of saline habitats. This study described and compared the salinity profiles of the soils from four hypersaline wetlands at inland, ill-drained depressions in NE Spain, which were sampled throughout the year in 1979–1980 and 1999–2000, and differed in land use. The halophytic communities dictated the location of sampling sites. After the saturated pastes of 404 soil samples were prepared, the electrical conductivity of the extracts (ECe) and the concentrations of major ions were measured, and additional supplementary analyses were performed. A subset of the samples was titrated for calcium carbonate equivalent and gypsum content. ECe and ion concentrations calculated for synthetic soil layers facilitated the comparisons of the vertical distribution of soil salinity among dates, depths, and sites. The shape of the mean ECe profiles over all sampling dates indicated moderate differences between the two wetlands closest to each other, Plan de Callén (PC) and Paúl de Almuniente (AL), which had similar (< ~ 10 dS m− 1) ECe. In contrast, the ECe profile at Paúl de Anzano (AN) ranged from 40 dS m− 1 to 50 dS m− 1 in the upper meter of the soil, which decreased steadily to 20 dS m− 1 at a 2-m depth. At Saladar de Agustín (AG), ECe was much higher and the profile had the opposite shape, ECe ~ 55 dS m− 1 at the surface and > 80 dS m− 1 at an 80-cm depth. The shape of ECe profiles at AL, PC, and AG was rather stable over time, contrasting with the measured desalination of the soil at AL after its conversion into a rice paddy. The changes in the sodium adsorption ratio (SAR) in the soil profiles at AN, PC, and AL are indicators of the potential extremes in the hydric behavior of the soils. At AG, the mineralogical clays are a minor component of these gypseous soils; therefore, the SAR, only, was used as a measure of the relative concentrations of Na+ versus Ca2 + plus Mg2 +. The median SAR of all AG soil samples did not differ significantly among sampling sites or dates. The shorter sampling depth intervals used in 1979–80 were responsible for the greater spread in the distribution and the increase in extreme SAR values compared to the data collected in 1999–2000. | Descripción: | 28 Pags.- 5 Tabls.- 14 Figs. The definitive version is available at: http://www.sciencedirect.com/science/journal/03418162 | Versión del editor: | http://dx.doi.org/10.1016/j.catena.2015.04.017 | URI: | http://hdl.handle.net/10261/115535 | DOI: | 10.1016/j.catena.2015.04.017 | ISSN: | 0341-8162 |
Aparece en las colecciones: | (EEAD) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
HerreroJ_Catena_2015.pdf | 1,01 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
14
checked on 13-mar-2024
WEB OF SCIENCETM
Citations
12
checked on 11-feb-2024
Page view(s)
558
checked on 19-mar-2024
Download(s)
352
checked on 19-mar-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.