Climate change adaptation in acid sulfate landscapes

Lin, Chuxia (2012) Climate change adaptation in acid sulfate landscapes. American Journal of Environmental Sciences, 8 (4). pp. 433-442. ISSN 1553-345X

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Abstract

Oxidation of sulfide minerals produces sulfuric acid and consequently creates Acid Sulfate Landscapes (ASLs), which represent one of the most degraded types of land-surface environments. Although acid sulfate-producing weathering is a naturally occurring process, it is markedly facilitated by human intervention. Mining is by far the dominant anthropogenic cause for the creation of inland acid sulfate footprints while land reclamation in coastal lowlands is the driver for the formation of coastal ASLs. The projected climate change highlights the possibility of an increase in the frequency and severity of extreme weather events such as droughts and heavy rains, which is likely to accelerate the acid generation in some circumstances and increase the frequency and magnitude of acid discharge. Sea level rise as a result of global warming will cause additional problems with the coastal ASLs. This is a review article. The following aspects are covered: (a) the overriding biogeochemical processes leading to acid sulfate producing weathering, (b) a brief introduction to the inland acid sulfate landscapes, (c) a brief introduction to the coastal acid sulfate landscapes, (d) the likely impacts of climate change on ASLs and (e) the possible measures to combat climate change-induced environmental degradation in the identified key acid sulfate footprints. The projected climate change is like to significantly affect the acid sulfate landscapes in different ways. Appropriate management strategies and cost-effective technologies need to be developed in order to minimize the climate change-induced ecological degradation.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Open access journal, no copyright restrictions on reproduction in any medium, provided the original work is correctly cited.
Depositing User: Dr Chuxia Lin
Faculty / Department / School: Historic - Faculty of Business and Law - No Department
Date Deposited: 17 Sep 2012 12:09
Last Modified: 03 Jul 2013 01:17
Uncontrolled Keywords: acid mine drainage; AMD; acid sulfate landscapes; ASL; acid sulfate soils; climate change; ecological degradation; pyrite
Fields of Research (FOR2008): 05 Environmental Sciences > 0502 Environmental Science and Management > 050205 Environmental Management
05 Environmental Sciences > 0503 Soil Sciences > 050302 Land Capability and Soil Degradation
05 Environmental Sciences > 0501 Ecological Applications > 050101 Ecological Impacts of Climate Change
Socio-Economic Objective (SEO2008): D Environment > 96 Environment > 9612 Rehabilitation of Degraded Environments > 961205 Rehabilitation of Degraded Mining Environments
Identification Number or DOI: doi: 0.3844/ajessp.2012.433.442
URI: http://eprints.usq.edu.au/id/eprint/21672

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