Study title: Populating the South African land type soil database with soil hydrology data

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Study titlePopulating the South African land
type soil database with soil hydrology data
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(No Transcript)
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Introduction
A
Hydraulic conductivity Bulk density Soil moisture
retention relations
B
C
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Methodology

• Selection criteria for profiles
• Important quaternary catchments (e.g.
  Umzimvubu, Tugela, Limpopo, Usuthu, Vaal)
• Soilscapes related to wetlands, pollution
  hazards, urban development, crop production and
  forestry.

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Measurements of soil hydrology
Double ring infiltrometers
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Tension infiltrometer
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Permeameter
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Core sampling
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Laboratory- wrc
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Data processing

• Determine
• - water retention curves for each horizon.
• - K(h) curves for each horizon.
• - Water conducting macroporosity of the A
  horizons.
• Develop PTFs
• -soil hydrologic properties vs soil
  morphological properties
• -permeameter vs C horizon characteristics

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Conclusion

• Peer reviewed articles
• Data to be presented to the curator of the land
  type database at ARC