Group

CV (%)

Soil physical properties

0 - 20 cm

20 - 50 cm

Summit

Least variable

<15

BD, CEC

BD, CEC

Moderately variable

15 - 35

Sand, silt, pH

Sand, pH

Highly variable

>35

Clay, AWC, SOC, TN, Av. P, K

Silt, Clay, AWC, SOC, TN, Av. P, K

Upper slope

Least variable

<15

BD, pH

BD, AWC

Moderately variable

15 - 35

Sand, Clay, AWC, SOC

Sand, Silt, pH

Highly variable

>35

Silt, TN, Av. P, K, CEC

Clay, SOC, TN, Av. P, K, CEC

Middle slope

Least variable

<15

BD

Sand, Clay, BD, AWC

Moderately variable

15 - 35

Sand, Silt, AWC, pH,

Silt

Highly variable

>35

SOC, TN, Av. P, K, CEC

SOC, TN, Av. P, K, CEC

Lower slope

Least variable

<15

BD

Sand, Clay, BD, pH, AWC, pH

Moderately variable

15 - 35

Sand, AWC, pH, SOC, Av. P

AWC, Av. P, CEC, SOC, TN

Highly variable

>35

Silt, Clay, TN, K, CEC

Silt, SOC, TN, K

Valley bottom

Least variable

<15

AWC, BD, pH, CEC

Sand, Silt, BD,

Moderately variable

15 - 35

Sand, Clay, SOC

Clay, CEC

Highly variable

>35

Silt, TN, Av. P, K

Av. P, K