T4 Fabric-Related Analyses 4A Bulk Density g/cm 3 4B Water Retention g/g 100% 4C Water Retention Difference cm/cm 4D Coefficient of Linear Extensibility (COLE) 4E Micromorphology cm/cm 4F Plasticity Index % 4G Aggregate Stability %
( ) 4A Bulk Density Dbd (d) (Db) 4A1 Saran-Coated Clods 4A2 Paraffin Coated Clods 4A3 Cores g/c.c g/c.c g/c.c 4A4 Nonpolar-Liquid-Satruated g/c.c Colds 4A5 Compliant Cavity g/c.c
4B Water Retention (hysteresis) 4B1 Pressure-Plate Extraction 4B2 Pressure-Membrane Extraction g/g 100% g/g 100%
4C Water Retention Difference (WRD) 1/3bar 1/10bar 15bar 4C1 1/3-Bar 15-Bar Between 1/3-Bar and 15-Bar Tension 4C2 1/10-Bar 15-Bar Between 1/10-Bar and 15-Bar Tension 4C3 1/3-Bar Between 1/3-Bar Rewet 15-Bar and 15-Bar Tension cm/cm cm/cm cm/cm
4D Coefficient of Linear Extensibility (COLE) COLE Dbd 1/3 Dbd COLE Dbm -1 Dbm 1/3-bar 4D1 ( ) 1/3-Bar Air-dry or Oven-dry to 1/3-Bar Tension cm/cm
4F Plasticity Index (liquid limit) (plastic limit) 4F1 Liquid Limit % 4F2 Plastic Limit %
4G Aggregate Stability ( ) 4G1 2mm Wet Sieving Air-dry 2 to 1mm 1 mm %
4H Infiltration rate 4H1 Furrow mm/hr. 4H2 cylinder mm/hr.
4I Hydraulic Conductivity 4I1 Constant Head Method mm/hr
4A1 Saran-Coated Clods 4A1a ( ) Field State g/c.c 4A1b Air-Dry g/c.c 4A1c 30CM 30-cm Absorption g/c.c 4A1d 1/3bar I 1/3-Bar Desorption I g/c.c 4A1e 1/3bar II 1/3-Bar Desorption II g/c.c 4A1f 1/3bar III 1/3-Bar Desorption III g/c.c 4A1g 1/10bar 1/10-Bar Desorption g/c.c 4A1h Oven-Dry g/c.c 4A1i Rewet g/c.c
4A2 Paraffin Coated Clods 4A2a Over-Dry g/c.c
4A3 Cores ( ) 4A3a Field Moist g/c.c
4A4 Nonpolar-Liquid-Saturated Clods
4A5 Compliant Cavity
4B1 Pressure-Plate Extraction ( ) 2Bar 4B1a 2mm( ) Air-dry, <2-mm (sieved) (0.06 0.1 1/3 samples (0.06,0.1,1/3,1,or g/g 100% 1 2Bar) 2 Bar) 4B1b Soil Pieces g/g 100% 4B1c (0.06 0.1 Natural Clods g/g 100% 1/3 1 2Bar) (0.06,0.1,1/3,1,or 2 Bar) 4B1d (0.06 0.1 Soil Cores g/g 100% 1/3 1 2Bar) (0.06,0.1,1/3,1,or 2 Bar) 4B1e Rewet g/g 100%
4B2 Pressure-Membrane Extraction 2mm( ) 15 Bar 4B2a 2mm( ) Air-dry, <2-mm (sieved) (15 Bar) Samples (15Bar) 4B2b 2mm( Field Moist, <2-mm ) (15 Bar) (sieved) Samples (15Bar) g/g 100% g/g 100%
4B3 Sand-Table Absorption 0.01 Bar 0.05 Bar 0.1 Bar ( )
4B4 Field State
4B5 Air-Dry (AD/OD) (Gypsiferous soils)
1/3-Bar 15-Bar 4C1 Between 1/3-Bar and 15-Bar Tension 1/3Bar 15Bar WRD (W? -W 15 ) (Db? ) cm WRD 100 W? 1/3Bar W 15 15Bar Db? 1/3Bar 2mm Cm Cm
1/10Bar 15Bar 4C2 Between 1/10-Bar and 15-Bar Tension 1/10Bar 15Bar (W 1/10 -W 15 ) (Db 1/10 ) cm WRD WRD 100 W 1/10 1/10Bar W 15 15Bar Db 1/10 1/10Bar 2mm Cm Cm
1/3Bar 15Bar 4C3 Between 1/3-Bar Rewet and 15-Bar Tension 1/3Bar rewet 15Bar WRD (W? -W 15 ) (Db? ) cm WRD 100 W? 1/3Bar rewet W 15 15Bar Db? 1/3Bar rewet 2mm Cm Cm :
( ) 1/3Bar 4D1 Air-dry or Oven-dry to 1/3-Bar Tension LE(Linear Extensibility) COLE(Coefficient of Linear Extensibility) LE COLE 100
4F1 Liquid Limit
4F2 Plastic Limit
2mm 1mm 4G1 Wet Sieving Air-dry 2 to 1 mm 2mm 1mm 0.5mm 0.5mm
4H2 Cylinder 20 15-20
4H1 Furrow