Irrigation is a fundamental requirement for agriculture in most parts of South Africa. Source:Leidorf 2008 ( click to enlarge ) |
Annual flow monitored at hydrographic stations. Source:DWA South Africa 2009 ( click to enlarge ) |
The Richtersveld region, South Africa/Namibia. Source: ©iStockphoto/ Roode 2008 ( click to enlarge ) |
A gorge on the Makhaleng River, near Malealea lodge, Lesotho. Source:Tjeerd 2004 ( click to enlarge ) |
Vanderkloof Dam, South Africa - water held in dams has a temperature gradient, which decreases with depth. Source:Van Wyk 2002 ( click to enlarge ) |
Water is mixed with oxygen in waterfalls. Source:Source:Lesotho Water Commission 2002 ( click to enlarge ) |
Acid mine drainage in a stream in Gauteng, South Africa. Such pollution can have devastating effects on ecosystems. Source:Clever Green 2011 ( click to enlarge ) |
Total Dissolved Solids contributing to water quality problems in Tweelopiespruit, near Krugersdorp, South Africa. Source:Kruchem 2011 ( click to enlarge ) |
The Orange River, near Upington, South Africa; a region impacted by water quality issues such as suspended sediments from upstream sources. Source:Kruchem 2008 ( click to enlarge ) |
Salt encrusted soil in the Kalahari Source:Reed 2009 ( click to enlarge ) |
Hardness can damage valves and cause leaking on pipes and other infrastructure. Source:DRFN 2004 ( click to enlarge ) |
Eutrophic waters near Keimoes in the Lower Orange River in South Africa. Source:Kruchem 2008 ( click to enlarge ) |
Tailings from mining operations can become a source of contamination if not properly contained. Source:DWAF South Africa 1998 ( click to enlarge ) |
Giardia lamblia is a protozoan parasite that can be found in untreated water and cause diarrhoea. Source:Carr 2006 ( click to enlarge ) |
Maletsunyane Falls, in Lesotho. Source:Lesotho Water Commission 2005 ( click to enlarge ) |
Healthy wetland in the Lesotho Highlands. Source:Lesotho Water Commission 2002 ( click to enlarge ) |
The Caledon River, Lesotho. Source:Vogel 2009 ( click to enlarge ) |
Water released from dams such as the Vanderkloof Dam alters the temperature regime of the river downstream. Source:DWAF South Africa 2009 ( click to enlarge ) |
Blackfly proliferate in stable water temperature conditions. Source:USDA 2005 ( click to enlarge ) |
A pit-latrine in Orange Farm township, to the south of Johannesburg, South Africa. Source:Kruchem 2008 ( click to enlarge ) |