Table 1 River sand particle size distribution and mass fraction.

From: Modeling of sand-cultivated substrate for Gobi facility agriculture and validation of trenching test

Particle size

range/mm

> 5

5–2.5

2.5–1

1–0.6

0.6–0.25

0.25–0

Mass/g

59.6

122.4

137.7

54.3

526

98.5

Mass fraction/%

5.96%

12.24%

13.77%

5.43%

52.60%

9.85%