## 4 Results and Analysis
### Characteristics of the Spatial Distribution of Geological Disaster Susceptibility  
Pingshan County features a distinctive topography, rising higher in the west and north while descending towards the east and south. It exhibits significant elevation differences, pronounced undulations in the landscape, and a well-developed water system. Given its complex geological environment and the frequent occurrence of geological disasters, the natural breaks method [31] is utilized to categorize the susceptibility of Pingshan County to geological disasters into four levels: low, medium, high, and very high. The areas of  
Figure 4: Habitat quality zonation map.  
low susceptibility account for approximately 25.21% of the total county area, medium susceptibility covers about 27.02%, high susceptibility constitutes the largest portion, at about 45.12%, and very high susceptibility comprises the smallest fraction, at about 2.65% (Table 5). The distribution of susceptibility to geological disasters exhibits significant spatial characteristics (Figure 5).  
The low-incidence areas are predominantly located in the eastern part of the region, falling within the subregion of structurally denuded hills, the erosion accumulation platform subregion, and fault basin and river valley areas. These areas feature less developed fracture structures and are primarily characterized by water bodies, arable land, and construction land. The terrain is generally gentle, with abundant water sources, convenient transportation, and a relatively dense population. Conversely, the medium-incidence areas in the western part of Pingshan County are marked by higher altitudes and greater terrain undulations (elevation > 450 m, degree of relief > 40 m, 15\({}^{\circ}\) < slope < 30\({}^{\circ}\)). This region, part of the erosion structure subregion with medium-height and low mountains, has more developed fracture structures, though the slopes are moderate and the vegetation coverage is high. This area hosts several nature reserves, ecological tourism zones, and scenic areas. Effective monitoring and prevention measures by relevant departments have resulted in fewer disaster points and a relatively lower incidence rate. The high-incidence area spans approximately 1194.68 km\({}^{2}\), primarily consisting of forest land and grassland in the west. This area is part of the erosion structure subregion of middle-height and low mountains and is characterized by higher altitudes and slopes. Despite numerous disaster points scattered throughout, the density of these points is relatively lower due to the large area of high incidence. The extremely high-incidence area features high terrain, developed fracture structures, and loose and weak rock layers, with the predominant land use being grassland with low vegetation coverage. During the flood season, this area is highly susceptible to  
Figure 5: Geological hazard susceptibility zoning map.  
\begin{table}
\begin{tabular}{c c c c} \hline \hline
**Level** & **Area (km\({}^{2}\))** & **Area Proportion** &
\begin{tabular}{c} **Disaster Point Total** \\ **Density (Count/km\({}^{2}\))** \\ \end{tabular} \\ \hline Low susceptibility & 667.46 & 25.21\% & 0.0045 \\ Medium susceptibility & 715.56 & 27.02\% & 0.0349 \\ High susceptibility & 1194.68 & 45.12\% & 0.0804 \\ Extremely high susceptibility & 70.29 & 2.65\% & 0.1280 \\ \hline \hline \end{tabular}
\end{table}
Table 5: Different proneness level proportions and disaster point distribution.  
geological disasters due to rainfall. Although this region covers the smallest area, it has the highest density of disaster points at approximately 0.1280 per km\({}^{2}\) (Table 5). In summary, Pingshan County exhibits an increasing density of geological disasters and higher susceptibility to such events, aligning with the findings from previous research [31]. This confirms the scientific validity and accuracy of the study.