Phytostabilization of soils contaminated with As, Cd, Cu, Pb and Zn: Physicochemical, toxicological and biological evaluations
Phytostabilization of metal-contaminated soils is effective to reduce their solubility and availability in soils and reduce their toxicity to plants. However, the evaluation of appropriate treatments and efficient plant species needs to consider the effects not only of soil characteristics, but also...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-06-01
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| Series: | Soil & Environmental Health |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949919423000146 |
| _version_ | 1797347031906254848 |
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| author | R.G. Lacalle M.P. Bernal M.J. Álvarez-Robles R. Clemente |
| author_facet | R.G. Lacalle M.P. Bernal M.J. Álvarez-Robles R. Clemente |
| author_sort | R.G. Lacalle |
| collection | DOAJ |
| description | Phytostabilization of metal-contaminated soils is effective to reduce their solubility and availability in soils and reduce their toxicity to plants. However, the evaluation of appropriate treatments and efficient plant species needs to consider the effects not only of soil characteristics, but also of microbial population. In this work, the effects of seven different plants, including crops and locally adapted species, in two metal-contaminated soils based on a field phytoremediation experiment were evaluated. The two soils (agricultural and mining) contained 6.1, 2322 and 1422, and 13.5, 2071 and 13,971 mg kg−1 Cd, Pb and Zn concentrations, respectively. In the agricultural soil, combination of crop species Cynara cardunculus and Brassica juncea Czern. was the most effective in reducing metal extractability and in stimulating microbial activity. In the mining soil, compost-assisted phytostabilization decreased CaCl2-extractable Cd and Zn (12–50% for Cd and 71–76% for Zn). The reduced metal toxicity enhanced microbial biomass activity and diversity, particularly under B. juncea. Thus, phytostabilization using selected species was effective in reducing metal toxicity in contaminated soils. |
| first_indexed | 2024-03-08T11:40:40Z |
| format | Article |
| id | doaj.art-b42e123c68b04c3faef030d2b72af973 |
| institution | Directory Open Access Journal |
| issn | 2949-9194 |
| language | English |
| last_indexed | 2024-03-08T11:40:40Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Soil & Environmental Health |
| spelling | doaj.art-b42e123c68b04c3faef030d2b72af9732024-01-25T05:25:06ZengElsevierSoil & Environmental Health2949-91942023-06-0112100014Phytostabilization of soils contaminated with As, Cd, Cu, Pb and Zn: Physicochemical, toxicological and biological evaluationsR.G. Lacalle0M.P. Bernal1M.J. Álvarez-Robles2R. Clemente3Centro de Edafología y Biología Aplicada del Segura, CSIC. Campus Universitario de Espinardo, 30100, Espinardo, Murcia, Spain; Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), P.O. Box 644, E-48080, Bilbao, SpainCentro de Edafología y Biología Aplicada del Segura, CSIC. Campus Universitario de Espinardo, 30100, Espinardo, Murcia, SpainCentro de Edafología y Biología Aplicada del Segura, CSIC. Campus Universitario de Espinardo, 30100, Espinardo, Murcia, SpainCentro de Edafología y Biología Aplicada del Segura, CSIC. Campus Universitario de Espinardo, 30100, Espinardo, Murcia, Spain; Corresponding author.Phytostabilization of metal-contaminated soils is effective to reduce their solubility and availability in soils and reduce their toxicity to plants. However, the evaluation of appropriate treatments and efficient plant species needs to consider the effects not only of soil characteristics, but also of microbial population. In this work, the effects of seven different plants, including crops and locally adapted species, in two metal-contaminated soils based on a field phytoremediation experiment were evaluated. The two soils (agricultural and mining) contained 6.1, 2322 and 1422, and 13.5, 2071 and 13,971 mg kg−1 Cd, Pb and Zn concentrations, respectively. In the agricultural soil, combination of crop species Cynara cardunculus and Brassica juncea Czern. was the most effective in reducing metal extractability and in stimulating microbial activity. In the mining soil, compost-assisted phytostabilization decreased CaCl2-extractable Cd and Zn (12–50% for Cd and 71–76% for Zn). The reduced metal toxicity enhanced microbial biomass activity and diversity, particularly under B. juncea. Thus, phytostabilization using selected species was effective in reducing metal toxicity in contaminated soils.http://www.sciencedirect.com/science/article/pii/S2949919423000146CompostBrassica junceaField conditionsPhytotoxicityMicrobial activitySoil health |
| spellingShingle | R.G. Lacalle M.P. Bernal M.J. Álvarez-Robles R. Clemente Phytostabilization of soils contaminated with As, Cd, Cu, Pb and Zn: Physicochemical, toxicological and biological evaluations Soil & Environmental Health Compost Brassica juncea Field conditions Phytotoxicity Microbial activity Soil health |
| title | Phytostabilization of soils contaminated with As, Cd, Cu, Pb and Zn: Physicochemical, toxicological and biological evaluations |
| title_full | Phytostabilization of soils contaminated with As, Cd, Cu, Pb and Zn: Physicochemical, toxicological and biological evaluations |
| title_fullStr | Phytostabilization of soils contaminated with As, Cd, Cu, Pb and Zn: Physicochemical, toxicological and biological evaluations |
| title_full_unstemmed | Phytostabilization of soils contaminated with As, Cd, Cu, Pb and Zn: Physicochemical, toxicological and biological evaluations |
| title_short | Phytostabilization of soils contaminated with As, Cd, Cu, Pb and Zn: Physicochemical, toxicological and biological evaluations |
| title_sort | phytostabilization of soils contaminated with as cd cu pb and zn physicochemical toxicological and biological evaluations |
| topic | Compost Brassica juncea Field conditions Phytotoxicity Microbial activity Soil health |
| url | http://www.sciencedirect.com/science/article/pii/S2949919423000146 |
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