Acid sulfate soils on the west coast of Sri Lanka: A review

Vithana, Chamindra L. and Ulapane, Prashani A. K. and Chandrajith, Rohana and Sullivan, Leigh A. and Bundschuh, Jochen and Toppler, Nadia and Ward, Nicholas J. and Senaratne, Atula (2021) Acid sulfate soils on the west coast of Sri Lanka: A review. Geoderma Regional, 25:e00382. pp. 1-10.


Abstract

This article provides a general introduction to acid sulfate soil materials including those in Muthurajawela, a marsh of high ecological significance on the western coast of Sri Lanka. This peat bog is identified as one of the country's two acid sulfate soils landscapes. It covers ~3000 ha in area and contains a 3 to 7 m thick peat layer. Here we review the acid sulfate soils landscape of Muthurajawela marsh providing a broad description of the marsh, including its environmental setting, soil/peat characteristics along with the threats it faces. Furthermore, we briefly discuss the biogeochemistry of coastal acid sulfate soils (CASS) and the relationship to Muthurajawela. Finally, we discuss potential impacts of acid sulfate soil materials on the Muthurajawela marsh, and thereby, identify gaps in the understanding of the marsh's geochemistry. Our study identified that future investigations are required to assess the acidity status in the marsh, partitioning behaviour of trace elements in acid sulfate soil materials and to assess the impact of salt water intrusion and extreme weather events on acid sulfate soil materials.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying (1 Jul 2013 - 31 Dec 2021)
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying (1 Jul 2013 - 31 Dec 2021)
Date Deposited: 23 Jun 2022 01:13
Last Modified: 26 Jul 2022 03:41
Uncontrolled Keywords: Redox conditions, Pyrite, Acidification, Sulfidic soil materials, Coastal, Trace elements, Histosols
Fields of Research (2008): 05 Environmental Sciences > 0502 Environmental Science and Management > 050204 Environmental Impact Assessment
05 Environmental Sciences > 0503 Soil Sciences > 050304 Soil Chemistry (excl. Carbon Sequestration Science)
05 Environmental Sciences > 0502 Environmental Science and Management > 050205 Environmental Management
07 Agricultural and Veterinary Sciences > 0701 Agriculture, Land and Farm Management > 070101 Agricultural Land Management
Fields of Research (2020): 41 ENVIRONMENTAL SCIENCES > 4106 Soil sciences > 410604 Soil chemistry and soil carbon sequestration (excl. carbon sequestration science)
41 ENVIRONMENTAL SCIENCES > 4104 Environmental management > 410404 Environmental management
41 ENVIRONMENTAL SCIENCES > 4104 Environmental management > 410402 Environmental assessment and monitoring
30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3002 Agriculture, land and farm management > 300202 Agricultural land management
Identification Number or DOI: https://doi.org/10.1016/j.geodrs.2021.e00382
URI: http://eprints.usq.edu.au/id/eprint/49258

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