Thermal separation of soil particles from thermal conductivity measurement under various air pressures.The thermal conductivity of dry soils is related closely to air pressure and the contact areas between solid particles.  In this study, the thermal conductivity of two-phase soil systems was determined under reduced and increased air pressures.  The thermal separation of soil particles, i.e., the characteristic dimension of the pore space (d), was then estimated based on the relationship between soil thermal conductivity and air pressure.  We concluded that measuring thermal conductivity under increased air pressure procedures gave better-quality d values, and improved soil micro-pore structure estimation.
THERM
Thermal separation of soil particles from thermal conductivity measurement under various air pressures.The thermal conductivity of dry soils is related closely to air pressure and the contact areas between solid particles.  In this study, the thermal conductivity of two-phase soil systems was determined under reduced and increased air pressures.  The thermal separation of soil particles, i.e., the characteristic dimension of the pore space (d), was then estimated based on the relationship between soil thermal conductivity and air pressure.  We concluded that measuring thermal conductivity under increased air pressure procedures gave better-quality d values, and improved soil micro-pore structure estimation.
THERM
Thermal separation of soil particles from thermal conductivity measurement under various air pressures.The thermal conductivity of dry soils is related closely to air pressure and the contact areas between solid particles.  In this study, the thermal conductivity of two-phase soil systems was determined under reduced and increased air pressures.  The thermal separation of soil particles, i.e., the characteristic dimension of the pore space (d), was then estimated based on the relationship between soil thermal conductivity and air pressure.  We concluded that measuring thermal conductivity under increased air pressure procedures gave better-quality d values, and improved soil micro-pore structure estimation.
THERM
Thermal separation of soil particles from thermal conductivity measurement under various air pressures.The thermal conductivity of dry soils is related closely to air pressure and the contact areas between solid particles.  In this study, the thermal conductivity of two-phase soil systems was determined under reduced and increased air pressures.  The thermal separation of soil particles, i.e., the characteristic dimension of the pore space (d), was then estimated based on the relationship between soil thermal conductivity and air pressure.  We concluded that measuring thermal conductivity under increased air pressure procedures gave better-quality d values, and improved soil micro-pore structure estimation.
THERM