SOME ASPECTS OF THE WATER TABLE IN SOUTH AFRICA

REPRESENTATIVE SOIL MOISTURE PROFILES FROM SOUTH AFRICA ARE NOT AS YET AVAILABLE FOR COMPARISON WITH SIMILAR PROFILES FOR OTHER PARTS OF THE WORLD. SUCH PROFILES SEEM TO BEAR RELATION TO DEPTH TO THE PERMANENT WATER TABLE IN CONJUNCTION WITH THE AVAILABILITY OF MOISTURE PENETRATING FROM THE SOIL SURFACE. DEPTH TO THE WATER TABLE IN SOUTH AFRICA HAS BEEN REPRESENTED BY GENERALIZED ISOLINE MAPS DRAWN FROM POINT DATA FOR THE YEARS 1937 AND 1967. THESE MAPS INDICATE IN A GENERAL WAY THE COMBINED INFLUENCE OF TOPOGRAPHY, CLIMATE, GEOLOGY, VEGETATION AND SOIL ON DEPTH TO THE WATER TABLE, AND SHOW A MARKED INCREASE IN OVERALL DEPTH OVER THE 30 YEAR PERIOD. THE INDIVIDUAL EFFECT OF EACH OF THESE FACTORS IS EXAMINED IN TURN, WITH SPECIAL EMPHASIS ON THE INFLUENCE OF TOPOGRAPHY. THE CONCLUSION IS REACHED THAT APPROXIMATE DEPTH TO THE WATER TABLE MAY BE PREDICTED IN TERMS OF THESE FIVE FACTORS AND THE PRESENT ISOLINE MAPS. /AUTHOR/

  • Supplemental Notes:
    • Csir No Rr 90, PP 41-44, 3 FIG, 4 REF
  • Corporate Authors:

    Nat Inst Road Research /S Africa

    ,    
  • Authors:
    • Partridge, T C
  • Publication Date: 1967

Subject/Index Terms

Filing Info

  • Accession Number: 00234208
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 29 1994 12:00AM