Agronomic treatments enhance growth and arsenic uptake by Chinese brake fern (Pteris vittata L.)

Ashwath, N., Hanggi, S., Midmore, D. J. and Ng, J. C. (2012). Agronomic treatments enhance growth and arsenic uptake by Chinese brake fern (Pteris vittata L.). In: Jack C. Ng, Barry N. Noller, Ravi Naidu, Jochen Bundschuh and P. Bhattacharya, Understanding the geological and medical interface of arsenic - As 2012: Proceedings of the 4th International Congress on Arsenic in the Environment. 4th International Congress on Arsenic in the Environment - As 2012, Cairns, Australia, (323-325). 22-27 July 2012.

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
Author Ashwath, N.
Hanggi, S.
Midmore, D. J.
Ng, J. C.
Title of paper Agronomic treatments enhance growth and arsenic uptake by Chinese brake fern (Pteris vittata L.)
Formatted title
Agronomic treatments enhance growth and arsenic uptake by Chinese brake fern (Pteris vittata L.)
Conference name 4th International Congress on Arsenic in the Environment - As 2012
Conference location Cairns, Australia
Conference dates 22-27 July 2012
Proceedings title Understanding the geological and medical interface of arsenic - As 2012: Proceedings of the 4th International Congress on Arsenic in the Environment
Journal name Understanding the Geological and Medical Interface of Arsenic, As 2012 - 4th International Congress: Arsenic in the Environment
Series Arsenic in the Environment - Proceedings
Place of Publication London, United Kingdom
Publisher CRC Press - Taylor & Francis Group
Publication Year 2012
Sub-type Fully published paper
ISBN 9780415637633
9780203078808
ISSN 2154-6568
Editor Jack C. Ng
Barry N. Noller
Ravi Naidu
Jochen Bundschuh
P. Bhattacharya
Start page 323
End page 325
Total pages 3
Collection year 2013
Language eng
Formatted Abstract/Summary
A field experiment was conducted on a former cattle dip site to test the growth and arsenic
(As) removal potential of Chinese brake fern. The cattle dip site was excavated, As contaminated soil was
spread over an area of 2000 m2 and half of this area was limed. More than 3500 sporelings of Chinese
brake fern were established and mulched with straw. Within each of the limed and un-limed plots, agronomic
treatments such as phosphorus application, shading (four types of shading) or de-mulching were
implemented. The plants were assessed for growth and arsenic uptake over a year. Natural regeneration of
plants was also monitored for more than three years. The results showed that the Chinese brake fern can
withstand open sun light and it can grow well in the tropical climate, provided it is irrigated throughout
its life cycle. Shading and P application can improve growth and As uptake of Chinese brake fern in the
initial stages. Shoots of Chinese brake fern can accumulate up to 12,000 mg/kg As, with an average of
4,100 mg/kg across all treatments. Based on these data, we conclude that 1000’s of cattle dip sites that are
found in Australia can be remediated within 4–7 years using Chinese brake fern. Long term observation
also indicated that this fern does not regenerate after withdrawal of irrigation. This suggests that Chinese
brake fern can be readily eradicated, once its purpose is achieved. Further studies are required on disposal
of As-loaded fern.
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Section III: Remediation and policy - Chapter 116

 
Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Fri, 01 Mar 2013, 12:53:11 EST by Ms Imogen Ferrier on behalf of National Res Centre For Environmental Toxicology