RHP South African
River Health Programme
State of the Rivers Report
Crocodile, Sabie-Sand & Olifants
River Systems
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ecoregion 5.07 in Sabie-Sand Catchment Crocodile River System Sabie-Sand River System Olifants River System summary Olifants River System

The Sabie-Sand River System

Ecoregion 6.01

Ecoregion and River Characteristics

The very flat, low plains (100-300 m amsl) in this region experience relatively low rainfall (400-800 mm per year), and high temperatures (annual average exceeding 22°C). Bushveld is the dominant vegetation, on shallow, acidic, sandy soils.

The river rejuvenates through the Lebombo Mountains and has a relatively higher gradient than other sites in the lowveld. The river has multiple channels, with water flowing over roughened bedrock slabs, gravel and through deep pools.

Present Ecological State

The riparian zone is natural and the in-stream habitats and biota natural to good .

Ecoregion 6.01

Corumana Dam - Andrew Deacon

Drivers of Ecological Change (Land-use activities)

Conservation and eco-tourism are again the dominant activities. The Corumana Dam inside Mozambique pushes up into the Kruger National Park, resulting in reduced velocity of flows, damping of seasonal flow fluctuations and increased deposition of sediments. This, in turn, leads to a loss of natural habitats, which has an effect on the health of especially the fish population.

Desired Ecological State and Response by Resource Managers

Due to the conservation importance of this region, the Sabie should be maintained in a natural state.

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