Textural class of soil

Infiltration rate (ms⁻¹)

Simulated using HGS model

Standard tests (Rawls & Brakensiek, 1989)

Sand

1.6 × 10⁻⁴

8 × 10⁻⁵ à 4 × 10⁻⁴

Sandy loam

5 × 10⁻⁵

3 × 10⁻⁵ à 7 × 10⁻⁵

Limono-clay sand

8.2 × 10⁻⁵

4 × 10⁻⁶ à 8 × 10⁻⁵

Clay sand

3.7 × 10⁻⁵

5 × 10⁻⁶ à 3 × 10⁻⁵

Sandy silts

3.4 × 10⁻⁵

1 × 10⁻⁶ à 8 × 10⁻⁶

Sandy clay

9 × 10⁻⁵

7 × 10⁻⁶ à 9 × 10⁻⁶

Clay

8.3 × 10⁻⁵

<4 × 10⁻⁶