Abstract
Purpose Almost 50 % of wetland types in South Africa are regarded as critically endangered. Erosion is extensively present in many wetlands and has been primarily attributed to human activities. However, many researchers have suggested that the erosion of some wetland types is a long-term naturally recurring process and may be preceded by fire events. Wetland sediments are highly affected by processes of dissolution diagenesis, so that very little evidence of catchment processes would be expected to be preserved by their magnetic signatures. However, previously published research has shown that the magnetic signatures of fire can be preserved in some wetland and lake sediments.
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