Influence of soil properties on trace element availability and plant accumulation in a Mediterranean salt marsh polluted by mining wastes: Implications for phytomanagement

The aims of this study were to determine the factors which control metal and As phytoavailability in the different microenvironments (Sand Dunes, Salt Flat, Dry River and Shrubs) present at a Mediterranean salt marsh polluted by mining wastes. We performed a field study following a plot sampling survey. The analyses of soil parameters (pH, electrical conductivity (EC), organic carbon contents, etc.), total metal and As concentrations and their phytoavailability assessed with EDTA were related to each microenvironment and the corresponding plant species uptake. The averages of pH and EC were slightly alkaline (pH≈7.5) and saline (≈2.2 to 17.1 dS m−1) respectively. The soil samples from the Salt Flat subzone showed the highest metal concentrations (e.g. 51 mg kg−1 Cd, 11,600 mg kg−1 Pb) while for As, the highest concentrations occurred in the Dry River (380 mg kg−1 As). The total metal and EDTA-extractable concentrations occurred as it follows: Salt FlatNDry RiverNDegraded DunesNShrubs. In relation to plant metal and As accumulation, the highest root concentrations were obtained in the species from the Salt Flat subzone: ~17 mg kg−1 As, ~620 mg kg−1 Pb, for both, Juncus maritimus and Arthrocnemum macrostachyum. However the highest metal and As shoot concentrations occurred in species from the Sand Dunes: ~23 mg kg−1 As ~270 mg kg−1 Pb for Dittrichia viscosa; ~23 mg kg−1 As, ~390 mg kg−1 Zn for Crucianella maritima. The occurrence of edaphic gradients including salinity and texture determined the vegetation distribution. However, it cannot be concluded that there was a disturbance due to metal(loid)s soil concentrations in terms of vegetation composition except in the Degraded Dunes and Dry River. The higher EDTA-extractable concentrations were coincidental with the most saline soils but this did not result in higher metal(loid)s plant accumulation

Data and Resources

Cite as

Conesa H.M. Cervantes A.M. Álvarez Rogel J. y González Alcaraz M.N. Influence of soil properties on trace element availability and plant accumulation in a Mediterranean salt marsh polluted by mining wastes: Implications for phytomanagement. Elsevier B.V., 2011. https://doi.org/10.1016/j.scitotenv.2011.07.049

Clipboard Icon
Retrieved: 20 Jan 2025 10:18:47
RIS BibTeX

Metadata
Download
DCAT-AP/NTI-RISP

Basic information
Resource type Article
Date of creation 2024-11-05
Date of last revision 2025-01-20
Show changelog
Metadata identifier 19b48eed-c4ef-52b9-a2a6-f9cb7ce5e57d
Metadata language Spanish
Themes (NTI-RISP)
High-value dataset category Earth observation and environment
ISO 19115 topic category biota
Keyword URIs
Bibliographic information
Name of the dataset creator Conesa, H.M., Cervantes, A.M., Álvarez Rogel, J. y González Alcaraz, M.N.
Name of the dataset editor Elsevier B.V.
Other identifier DOI: 10.1016/j.scitotenv.2011.07.049
Identifier of the dataset creator
Email of the dataset creator hector.conesa@upct.es
Website of the dataset creator
Provenance
Lineage statement
Metadata Standard
Version notes
Version