Research Article
Interaction between Vetiver Grass Roots and Completely Decomposed Volcanic Tuff under Rainfall Infiltration Conditions
Table 4
Laboratory soil density and calculated dry density.
| | Sample number | Laboratory soil density (%) | Average natural soil
density (g/cm3) | Calculated dry density (g/cm3) |
| | Rootedsample_1 | 1.81 | 1.81 | 1.51 | | Rootedsample_2 | 1.85 | | Rootedsample_3 | 1.86 | | Rootedsample_4 | 1.79 | | Rootedsample_5 | 1.74 |
| | Nonrooted sample_1 | 1.70 | 1.67 | 1.41 | | Nonrooted sample_2 | 1.66 | | Nonrooted sample_3 | 1.66 |
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