Leaching of Contaminants to Groundwater - Dealing with Contaminated Sites: From Theory Towards Practical Application - page 821

Table 18.2 Replicate measurements of field transport parameters and their variability expressed by the coefficient of variation CV

Parameter CV (%) Soil texture Number of observations References

Static properties
Porosity 9.6 Loamy sand 12 Cassel ( 1983 )

Porosity 11.4 Clay loam 120 Russo and Bresler ( 1981 )

Bulk density 2.3 Sand 5 Babalola ( 1978 )

Bulk density 26.0 Sandy loam 30 Courtin et al. ( 1983 )

Water content (0.1 bar, low suction) 4.3 Clay loam 100 Gajem et al. ( 1981 )

Water content (0.1 bar, low suction) 20.0 Sandy loam 64 Gumaa ( 1978 )

Water content (15 bar, high suction) 14 Clay loam 900 Gajem et al. ( 1981 )

Water content (15 bar, high suction) 45 Sandy loam 172 Cassel and Bauer ( 1975 )

Water content 7.0 Sandy loam 180 Mallants et al. ( 1996c )

Water content 23.0 Sandy loam 180 Mallants et al. ( 1996c )

Van Genuchten parameter, θ 54.9-156.4 Sandy loam 180 Mallants et al. ( 1996c ) r

Van Genuchten parameter, θ 5.1-7.6 Sandy loam 180 Mallants et al. ( 1996c ) s

Van Genuchten parameter, α 45.0-53.0 Sandy loam 180 Mallants et al. ( 1996c )

Van Genuchten parameter, n 11.0-22.0 Sandy loam 180 Mallants et al. ( 1996c )

Soil pH 2.0 Clay loam 100 Gajem et al. ( 1981 )

Soil pH 15.0 Clay loam 1040 Cameron et al. ( 1971 )

K d 31.0 Loamy sand 36 El Abd ( 1984 )

CEC 35.5 Loamy clay 93 Jacques et al. ( 1999 )

Langmuir parameter, K f 101.19 Clay loam 93 Jacques et al. ( 1999 )

Langmuir parameter, n 8.06 Clay loam 93 Jacques et al. ( 1999 )

Sand, Loam, Clay and OC 82.6, 37.2, 32.4

and 78.1

Clay loam 93 Jacques et al. ( 1999 )

Sand 3.0 Loamy sand 5 Babalola ( 1978 )

Clay 55.0 Clay 480 Nielsen et al. ( 1973 )