| Autor: |
Abro SA; a Plant Ecology and Environmental Biology Laboratory , Institute of Plant Sciences, University of Sindh , Jamshoro , Pakistan., Otho AA; a Plant Ecology and Environmental Biology Laboratory , Institute of Plant Sciences, University of Sindh , Jamshoro , Pakistan., Bughio FA; a Plant Ecology and Environmental Biology Laboratory , Institute of Plant Sciences, University of Sindh , Jamshoro , Pakistan., Sahito OM; b National Centre of Excellence in Analytical Chemistry , University of Sindh , Jamshoro , Pakistan., Jamali AR; a Plant Ecology and Environmental Biology Laboratory , Institute of Plant Sciences, University of Sindh , Jamshoro , Pakistan., Mahar A; c Centre for Environmental Sciences , University of Sindh , Jamshoro , Pakistan. |
| Jazyk: |
angličtina |
| Zdroj: |
International journal of phytoremediation [Int J Phytoremediation] 2017 Dec 02; Vol. 19 (12), pp. 1142-1149. |
| DOI: |
10.1080/15226514.2017.1328395 |
| Abstrakt: |
The reclamation of saline sodic soils requires sodium removal and the phytoremediation is one of the proven low-cost, low-risk technologies for reclaiming such soils. However, the role of Phragmites australis in reclaiming saline sodic soils has not been evaluated extensively. The comparative reclaiming role of P. australis and gypsum was evaluated in a column experiment on a sandy clay saline sodic soil with EC e 74.7 dS m -1 , sodium adsorption ratio (SAR) 63.2, Na + 361 g kg -1 , and pH 8.46. The gypsum at 100% soil requirement, planting common reed (P. australis) alone, P. australis + gypsum at 50% soil gypsum requirements, and leaching (control without plant and gypsum) were four treatments applied. After 11 weeks of incubation, the results showed that all treatments including the control significantly reduced pH, EC, exchangeable Na + , and SAR from the initial values, the control being with least results. The gypsum and P. australis + gypsum were highly effective in salinity (EC e ) reduction, while sodicity (SAR) and Na + reductions were significantly higher in P. australis + gypsum treatment. The reclamation efficiency in terms of Na + (83.4%) and SAR (86.8%) reduction was the highest in P. australis + gypsum. It is concluded that phytoremediation is an effective tool to reclaim saline sodic soil. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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