Characteristics of Arsenic Uptake and Accumulation of Pteris vittata L. Planting in the Soil Contaminated by the Highly Toxic As-Chemicals

Abstract:

This research was conducted to understand the characteristics of arsenic (As) accumulation in Pteris vittata L. for remediation the soil contaminated by highly toxic As-chemicals. After Pteris vittata L. grown in different test soil for 3 months in the greenhouse, the determination result shown that the hyperaccumulator not only could accumulate large amounts inorganic arsenic and little organic arsenic, but also the majority of As was found in the fronds (over 90% of total As-content in the whole plants, average value, mg) .Furthermore, if the plants grown for different time in the same As-concentrations soil, the maximum As-concentrations (mg/kg) of pinnas, rachis and fronds all came forth at the end of the second month, but the maximum total As-content of fronds at the third month, so we could enhance the effects of remediation by harvested the fronds for per 3 months. The As-concentrations and the average total As-content of per plant and the As removal rate of the rhizosphere also could demonstrate the conclusion by comparing the harvested the plants per 3 months or not in 6 months.

• Periodical: Advanced Materials Research (Volume 878)
• Pages: 821-828
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.878.821
• Online since: January 2014
• Authors: Ting Zhou, Xue Feng Wang, Li Juan You, Gang Rao, Ning Wang
• Keywords: Accumulation, As-Contaminated Soil, Highly Toxic As-Chemicals, Pteris vittata L.

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