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Geographical Trends in Water Chemistry of Wetlands in Western Cape South Africa

Conductivity and pH measurements were made at 73 wetlands in the south-western Cape Province. The concentrations of the major cations and anions were determined in samples from 42 of these wetlands. Total dissolved salts (TDS) concentrations ranged from below 20 mg/L to more than 200 000 mg/L, and pH values as low as 4 and greater than 10 were recorded in some wetlands. Despite these extremes, the ionic ratios showed regional trends: Na+ and Cl are the dominant ions in wetlands near the coast, and HCO3 is the dominant anion in inland wetlands

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Author 1
Author first name
Author surname
Author organization
University of Cape Town
Freshwater Research Unit
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Contact person
Contact 1
Contact name
Michael Silberbauer
Contact organization
University of Cape Town
Freshwater Research Unit
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Publisher WaterSA
Publication date 1991-01-01
Project number 2183/1/14
License Open (Creative commons)
License URL
Keywords wetland, water chemistry, spatial distribution
Geographic location or bounding box coordinates [-22.1265, 16.4699, -34.8212, 32.8931]
Topic category Wetlands
Data structure category Structured (clearly labelled and in a standardised format)
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