Table 1 Physical properties of soils used in model development and validation.

From: A sigmoidal model for predicting soil thermal conductivity-water content function in room temperature

Study of model

Soil texture

Sand (%)

Silt (%)

Clay (%)

Bulk density (g cm-3)

Porosity

Development

Silty clay

10.6

45.4

44.0

1.07

0.596

Clay loam

35.0

35.0

30.0

1.10

0.593

Silt loam

24.9

53.3

21.8

1.14

0.578

Loam

40.0

47.0

13.0

1.15

0.574

Sandy loam

70.0

18.0

12.0

1.47

0.456

Loamy sand

85.0

10.0

5.0

1.57

0.419

Validationa

Silt loam

2.0

73.0

25.0

1.20

0.556

Loam

50.0

41.0

9.0

1.38

0.489

Sand

92.0

7.0

1.0

1.58

0.415

  1. aData from Lu et al.10.