Are We Destroying Our Insurance Policy? The Effects of Alien Invasion and Subsequent Restoration - Landscape Ecology for Sustainable Environment and Culture - page 342

Fig. 16.15 A typical palmiet wetland in Jonkershoek, in the Western Cape of South Africa.
Palmiet wetlands are often underlain by a thick layer of peat, built up over thousands of years
which perform many important functions including water storage and filtration
Eastern Cape of South Africa as it provides approximately 40 % of the city's water supply.
The Eastern Cape has been in a drought with the Churchill Dam being less than 30 % full
for the past few years.