STREAMING POTENTIAL AND MOISTURE TRANSFER IN SOIL UPON FREEZING AS A FUNCTION OF POROSITY OF SOIL

AN EXPERIMENTAL VERIFICATION IS PRESENTED OF THE EXISTENCE OF VARIOUS SOIL MOISTURE TRANSFER MECHANISM RANGES AS A FUNCTION OF POROSITY. A SUMMARY OF THE TEST DATA IS PRESENTED. IT IS CONCLUDED THAT: (1) THE AMOUNT OF SOIL MOISTURE TRANSFERRED UPON FREEZING AS A CONSEQUENCE OF AN EXTERNALLY APPLIED FREEZING TEMPERATURE GRADIENT TO THE SOIL SYSTEM IS A FUNCTION OF POROSITY OF THE PACKING OF THE SOIL, (2) DEPENDING ON THE POROSITY OF THE PACKING, MOISTURE MAY BE TRANSFERRED UPWARD FROM GROUND WATER TOWARDS THE COLD FRONT BY WAY OF VARIOUS MOISTURE TRANSFER MECHANISMS, AND (3) VAPOR TRANSFER IS A RELATIVELY INEFFECTIVE SOIL MOISTURE TRANSFER MECHANISM. SOIL MOISTURE TRANSFER IN THE FILM PHASE TAKES PLACE VIRTUALLY UNACCOMPANIED BY VAPOR DIFFUSION.

Media Info

  • Monograph Title: Discussions on Water and Its Conduction in Soils
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00237702
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Sep 16 1994 12:00AM