NaCl concentrations in the soil water (mg NaCl per L) at the median strips in relation to protection measures. Mean values during the period of growth (May through September). The relation between Na and Cl is almost constant, Na/Cl being approximately 0.59.
| Road distance | KV | RV | |||||
|---|---|---|---|---|---|---|---|
| Mat type | Mat type | ||||||
| None | Parallel | Square | Skirt | None | Square | Skirt | |
| 0.6 m | 1,135 | 1,031 | 718 | 983 | 1,588 | 823 | — |
| 1.2/1.5z m | 928 | 703 | 327 | 852 | 460 | — | — |
| 1.9y m | 572 | 432 | 302 | 405 | 324 | 321 | 326 |