ROADBANK EROSION AND ITS CONTROL IN THE PIEDMONT UPLAND OF GEORGIA

A ROADBANK RESEARCH PROJECT IN GEORGIA INCLUDED TESTING THE CAPABILITIES OF MANY COVER SPECIES, SOIL TREATMENTS, AND MULCHES FOR ESTABLISHING AND MAINTAINING ADEQUATE PROTECTIVE COVER ON ROADBANKS AT REASONABLE COST. FROST ACTION WAS A MAJOR FACTOR IN LOSSES FROM MOST OF THE BANKS EXCEPT FOR NEWLY SLOPED, FIRM BANKS. ORIENTATION OF THE ROADBANKS GREATLY INFLUENCED FROST ACTION AND EROSION. ALL BANKS FACING THE NORTHWEST YIELDED TWICE AS MUCH SOIL LOSS AS THOSE FACING THE SOUTHEAST. TWENTY-EIGHT DIFFERENT SPECIES AND VARIETIES WERE PLANTED WITH AND WITHOUT MULCH DURING THE ROADBANK STABILIZATION STUDIES. THE SOD-FORMING GRASSES AND LEGUMES WERE SUCCESSFUL ON FRIABLE SOILS AND LOWER SLOPES, WHEREAS THE DIFFICULT SOILS AND STEEPER, HIGHER ROADBANK SLOPES WERE STABILIZED MORE EASILY WITH VINE-TYPE PLANTS THAT WERE PLANTED NEAR THE BOTTOM AND AT THE TOP OF THE BANK. MULCH WAS FOUND TO BE ESSENTIAL ON STEEP SLOPES FOR SLOW-DEVELOPING PLANTS. MULCH ANCHORED THE SEED AND FERTILIZER IN PLACE, INSULATED THE SOIL AGAINST FROST DAMAGE, AND REDUCED EROSION.

  • Supplemental Notes:
    • Ars 41-73, 40 PP, 26 FIG, 12 TAB, APP
  • Corporate Authors:

    Agricultural Marketing Service

    Independence Avenue, Between 12th and 14th Streets, SW
    Washington, DC  United States  20250
  • Authors:
    • Diseker, E G
    • Richardson, E C
    • Hendrickson
  • Publication Date: 1963-8

Subject/Index Terms

Filing Info

  • Accession Number: 00204776
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 9 2003 12:00AM