DID YOU KNOW?
77% of this Water Source Area is in a natural state, yet alien invasive vegetation greatly impacts these areas. The water inside these mountains flows down to several thousands of metres where it heats up and returns as hot springs found at Calitzdorp, Montagu and Warmwaterberg. The mountains were also home to the Khoi and San, evident from the rock art that has been left behind.
Free flowing rivers
Interbasin transfer systems
Supplies water to
Alien Invasive Vegetation
Invasive alien trees that have spread through large parts of our country consume more than 2.9% of available water resources. In some catchments, water losses are higher than 25%. These losses contribute to biodiversity loss by crowding out indigenous species, devastating surrounding ecosystem.
Climate change is predicted to exacerbate risks associated with water scarcity and quality. Models show that the western parts of the country will receive less rain, whereas the central and eastern areas will receive more variable rainfall with more intense rainfall events.
Fires are a part of the natural lifecycle of the Fynbos, savannah and grasslands but a higher frequency of fires doesn't allow enough time for natural ecosystems to recover. The impact is exacerbated by the presence of invasive alien trees that burn hotter and longer, causing greater damage to property and the environment. Higher intensity and frequency of fires means that precious soil is eroded and more easily washed away.
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