Quantcast Table 4.2.4. Computed Fractions of Clay, Silt and Aggregates Entering a Grass Filter Strip from a Silt Loam Soil

 
  
 
Table 4.2.4. Computed Fractions of Clay, Silt and Aggregates
Entering a Grass Filter Strip from a Silt Loam Soil
Computed Fraction Entering Strip
Primary Clay
Primary Silt
Small Aggregate
Slope
Roughness
Low (0.5%)
Low
0.12
0.28
0.46
Mod
0.29
0.43
0.27
High
0.32
0.47
0.21
Mod. (2.5%)
Low
0.05
0.24
0.36
Mod
0.13
0.28
0.43
High
0.28
0.42
0.28
High (5%)
Low
0.05
0.24
0.36
Mod
0.08
0.24
0.44
High
0.24
0.39
0.31
Steep (10%)
Low
0.05
0.24
0.36
Mod
0.06
0.24
0.39
High
0.21
0.35
0.34
(after Flanagan et al. 1989)
Table 4.2.5. Estimated o Values for Five Particle Classes
of Four Soil Types
Particle Class
Soil Type
Sand
Silt
Silt Loam
Clay
Primary Clay
0.110
0.110
0.110
0.110
Primary Silt
2.84
2.84
2.84
2.84
Small Aggregate
13.5
13.5
13.5
95.0
Large Aggregate
643
643
954
2670
Primary Sand
820
820
820
820
(after Flanagan et al. 1989)
4.2-38

 


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