Title page for ETD etd-06102012-040148

Type of Document Master's Thesis
Author Albrecht, Karen A.
URN etd-06102012-040148
Title Observation scale effects on fluid transport behavior of soil
Degree Master of Science
Department Agronomy
Advisory Committee
Advisor Name Title
Parker, Jack C. Committee Chair
Baker, James C. Committee Member
Hutcheson, Thomas B. Jr. Committee Member
Powell, Norris L. Committee Member
Reneau, Raymond B. Jr. Committee Member
Simpson, Thomas W. Committee Member
  • Groundwater flow
Date of Defense 1985-01-15
Availability restricted

Variabilities of hydraulic and solute transport properties of soi1 are examined at three scales: pore-scale, sample volume-scale, and field-scale. Undisturbed soil cores were taken at 19 subsites spaced logarithmically along a 150 m line transect in a Groseclose mapping unit near Blacksburg; Virginia. Three core sizes were taken at each subsite at the soil surface and 0.5 m depth. 'Small' cores were-40x54 mm; 'medium' cores were 60X100 mm; and 'large' cores were 100x150 mm. Macropore effects on solute transport were evaluated using monocontinuum and bicontinuum models. Bicontinuum-predicted solute breakthrough curves (BTC) closely agreed with observed BTC data with mean errors of reduced concentrations

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