Salic Horizon - Soil Geography of the USA: A Diagnostic-Horizon Approach - page 225

Table 20.4 A global comparison of properties of soils with salic horizons (Bockheim and Hartemink 2013c)
Property USA a Iran b Somalia c Ghana d Jordan e Israel f Spain g Hungary h Russia i

No. pedons 13 2 3 3 2 6 23 3 2

Depth to salic (cm) 5 0 26 nd 21 0 nd nd 5

Thickness salic (cm) 83 > 140 > 67 nd 75 > 158 nd nd > 170

Clay (%) 25.4 42.0 nd 54.1 nd 7.2 17.8 36.0 nd

Silt (%) 42.4 41.0 nd 42.5 nd 20.0 49.8 62.0 nd

Bulk density (g/cm 3 ) 1.4 nd nd nd nd 1.6 nd 1.58 nd

pH 8.5 8.9 7.3 5.0 8.1 8.8 8.4 8.8 10

Soil organic C (%) 0.52 0.35 nd 0.82 0.28 0.11 1.0 0.53 0.83

CEC (cmol(+)/kg) 17.1 48.3 nd 33.2 22.7 nd nd 15.8 nd

SAR 161 38 nd nd nd nd 67.5 132 1.5

EC (dS/m) 40.2 22.8 8.3 5.1 40.2 nd 53.9 7.4 nd

CaCO 3 (%) 12.3 40.0 61.2 nd nd 13.5 33.1 11.5 11.9

Gypsum (%) 13.2 5.2 nd nd 0.65 nd 8.9 nd nd

<

Salt class j Sal, sal-sod Sal-sod Sal Sal Sal Sal Sal Sal-sod Sal-sod

a This study
b Abtahi ( 1977 )
c Alaily ( 1995 )
d Allotey et al. ( 2008 )
e Khresat and Qudah ( 2006 )
f Pfisterer et al. ( 1996 )
g Alvarez Rogel et al. ( 2001 )
h T´ th and Jozefaciuk ( 2002 )
i Bronnikova et al. ( 2011 )
j Salt class: sal saline, sod sodic, sal-sod saline sodic