The effects of geochemical conditions on the establishment and growth of mangrove seedlings in acid sulfate soil environments

Isyrini, Rantih (2014) The effects of geochemical conditions on the establishment and growth of mangrove seedlings in acid sulfate soil environments. PhD thesis, Queensland University of Technology.


Acid sulfate soils (ASS) is a stress factor that is responsible for the failure of some mangrove restoration projects, including abandoned aquaculture ponds converted from mangrove ecosystems. Through experimental and field studies, this research provides a better understanding of the biogeochemistry of ASS disturbance and the response of mangrove seedlings (Rhizophoraceae) under high metal levels and acidic conditions.

This study found that mangrove restorations under ASS disturbance can work but with lower numbers of survived seedlings. To prevent toxicity under high levels of metal, seedlings retained metals in their roots and sparingly distributed them into aerial parts with low mobility. The presence of high levels of potential acidity parameters would allow pyrite to oxidise, thus increasing metal levels and acidity, which in turn affected the survival and growth of the seedlings.

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37 since deposited on 16 Dec 2014
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ID Code: 78681
Item Type: QUT Thesis (PhD)
Supervisor: Gust, David, Williamson, Ian, & Scharaschkin, Tanya
Keywords: Abandoned ponds, accumulation, acid sulfate soils, density, establishment, geochemical conditions, growth, metals, Rhizophoraceae seedlings, translocation
Divisions: Current > Schools > School of Earth, Environmental & Biological Sciences
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Institution: Queensland University of Technology
Deposited On: 16 Dec 2014 04:13
Last Modified: 08 Sep 2015 06:54

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