## 3 Results  
### Forest Fire Susceptibility Zonation  
By analyzing data from layers that were used for forest fire susceptibility calculation, it has been determined that coniferous forests, that are the most susceptible to forest fire occurrence, cover 9.4% of total Nature Park Golija area, and mixed forest and shrub, that is also highly susceptible, covers 22.3% of total area. The largest part of the nature park is covered by broad-leaved forest (48.5%), which is moderately susceptible to forest fire occurrence (Table 5, Figure 5). \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Forest Fire Risk** & \
\begin{tabular}{c} **Fire Outbreak** \\ **Occurrence** \\ \end{tabular} &
\begin{tabular}{c} **Measurement** \\ **Frequency** \\ \end{tabular} & **Average Calculation** \\ \hline Non-existent & Non-existent & 5 minutes & Last 20 measurements \\ Low & / & 2 minutes & Last 15 measurements \\ High & / & Continuous & Last 10 measurements \\ Extreme & 5–10 & Continuous & Last 5 measurements \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Measurement frequency and average calculation of fire risk factors. Figure 4: Membership functions of output variables, adopted from [57]. Figure 5: Spatial distribution of classes in factors in Nature Park Golija. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Class** & **Vt [\%]** & **S [\%]** & **A [\%]** & **Ds [\%]** & **Dr [\%]** & **Df [\%]** \\ \hline
5 & 9.44 & 1.32 & 10.31 & 66.98 & 71.50 & 62.74 \\
4 & 22.25 & 13.21 & 23.94 & 26.47 & 22.69 & 18.54 \\
3 & 48.47 & 66.79 & 28.23 & 5.68 & 4.86 & 9.69 \\
2 & 17.91 & 13.87 & 25.91 & 0.86 & 0.82 & 4.93 \\
1 & 1.93 & 4.81 & 11.61 & 0.01 & 0.12 & 4.11 \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Distribution of classes in factors in the total Nature Park Golija territory. Slopes steeper than 35\({}^{\circ}\), which are the most prone to fires, occupy 1.3% of the total research area. Highly prone areas with terrain slope between 25\({}^{\circ}\) and 35\({}^{\circ}\) are found on 13.2% of the nature park, and moderately prone terrain with steepness from 10\({}^{\circ}\) to 25\({}^{\circ}\) covers the remaining 66.8%. South-oriented hillsides cover 10.3% of the total area. The share of other classes of slope, aspect, as well as distance from buildings, roads, and agricultural areas, in the total nature park area can be found in Table 5, and their spatial distribution is shown in Figure 5.  
For the calculation of the Forest Fire Susceptibility Index, predefined weighted values of factors were used. For the calculation of forest fire susceptibility using the fuzzy AHP method, a fuzzy comparison matrix was created (Table 6). For such comparison matrix, consistency ratio (CR) equals 0.055; therefore, the results of the comparison are considered as consistent. After the calculations weighted values (w\({}_{\rm j}\)) of factors were obtained, which are presented in Table 7.  
According to results obtained by using the index-based RC method for forest fire susceptibility zonation very high susceptibility is represented on 0.5% of the total research area. High susceptibility was determined on 24.2% of the territory. Medium susceptibility is represented on 70.5% of the nature park area, and low on 4.8%. Area on which very low fire susceptibility is determined is almost unnoticeable, which can be seen numerically in Table 8 and graphically in Figure 6. \begin{table}
\begin{tabular}{c c c c c c} \hline  & **Vt** & **A** & **S** & **Dr** & **Ds** & **Df** \\ \hline
**Vt** & 1, 1, 1 & 1, 2, 3 & 1.5, 2, 5, 3.5 & 2, 3, 4 & 2, 3, 4 & 2, 3, 4 \\
**A** & 0.33, 0.5, 1 & 1, 1, 1 & 1, 2, 3 & 1, 2, 3 & 1, 2, 3 & 1, 2, 3 \\
**S** & 0.29, 0.4, 0.67 & 0.33, 0.5, 1 & 1, 1, 1 & 1, 2, 3 & 1, 2, 3 & 1, 2, 3 \\
**Dr** & 0.25, 0.33, 0.5 & 0.33, 0.5, 1 & 0.33, 0.5, 1 & 1, 1, 1 & 1, 1, 1 & 1, 2, 3 \\
**Ds** & 0.25, 0.33, 0.5 & 0.33, 0.5, 1 & 0.33, 0.5, 1 & 1, 1, 1 & 1, 1, 1 & 1, 2, 3 \\
**Df** & 0.25, 0.33, 0.5 & 0.33, 0.5, 1 & 0.33, 0.5, 1 & 0.33, 0.5, 1 & 0.33, 0.5, 1 & 1, 1, 1 \\ \hline \end{tabular}
\end{table}