Figure 1.

Figure 2.

Figure 3.

j_ffp-2025-0024_tab_001
| – air temperature | 0–15°C, |
| – relative air humidity | 30–50%, |
| – average wind speed | up to 5 m/s, |
| – days without precipitation before controlled burning | 3–5, |
| – ground moisture content | 50–100%, |
| – moisture content of combustible material up to | 15%. |