oa Civil Engineer in South Africa - The Pongolo Floodplain : a unique ecosystem threatened

Volume 22, Issue 5
  • ISSN : 0009-7845



Conditions for the formation of extensive floodplains are extremely limited in South Africa, for they require that a river should regularly break the confines of its normal channel to flood a substantial adjacent area which includes a number of suitable depressions to retain water over the dry season. These requirements are usually only met where a river carrying significant run-off attains grade on a flat plain. The coastal plain of northern Zululand is the only such area in the high rainfall zone of the Republic and, because of its unusual south-north course, the Pongolo River has formed a floodplain of some 10 000 ha along the eastern foot of the Lebombo Mountains. This floodplain comprises a low-lying area, incorporating a series of shallow pans, separated from the main river channel by low levees.

Loading full text...

Full text loading...


Article metrics loading...


This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error