Comparison among soil additives for enhancing Pteris vittata L.: Phytoremediation of As-contaminated soil.
Int J Phytoremediation
; 20(13): 1300-1306, 2018.
Article
en En
| MEDLINE
| ID: mdl-28485990
ABSTRACT
Pot experiments were conducted to assess the effects of monoammonium phosphate (NH4H2PO4) and citric acid (CA) on the arsenic uptake of Chinese brake fern (Pteris vittata L. in two typical arsenic-contaminated soils i.e. fluvo-aquic and brown) from Jiyuan (JY) City and Baoding (BD) City in Northern China. NH4H2PO4 improved the biomass of P. vittata, whereas CA exerted no significant influence. NH4H2PO4 and CA both increased the arsenic uptake of P. vittata by 6.08 and 2.72 times, respectively, in fluvo-aquic soil and 4.20 and 2.52 times, respectively, in brown soil. Moreover, CA, but not NH4H2PO4, promoted the transfer of arsenic from the root to the frond. NH4H2PO4 and CA increased Olsen's arsenic contents in the soils and promoted the transformation of residual arsenic and crystalline Fe/Al oxide-bound arsenic to nonspecifically and specifically sorbed arsenic. This study proved that P. vittata can be used in Northern China. Applying NH4H2PO4 and CA can enhance the effectiveness of P. vittata in the phytoremediation of arsenic-contaminated soils.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Arsénico
/
Contaminantes del Suelo
/
Pteris
País/Región como asunto:
Asia
Idioma:
En
Revista:
Int J Phytoremediation
Asunto de la revista:
BOTANICA
/
SAUDE AMBIENTAL
Año:
2018
Tipo del documento:
Article
País de afiliación:
China