## 3 Results and Discussion
### Recommendations and Limitations on Land Use
#### 3.3.2 Land Use Limitations Degree Mapping for the SE Margin of the Ria de Arosa  
The overlap of the thematic layers that make up the land use recommendations and limitations mapping through the Boolean analysis combination matrix allows for the creation of land use limitation degree mapping (Figure 10). Three distinct scenarios are thus presented: high limitation degree, medium limitation degree, and low limitation degree. 1. High limitation degree: These areas combine high or very high conservation quality with recognized natural hazards, making them especially vulnerable and highly restrictive for anthropogenic activities. Any proposed activity in these areas must strictly undergo a detailed and rigorous environmental impact assessment explicitly aimed at minimizing ecological disruption and hazards. Given their ecological sensitivity and natural risk, anthropogenic developments in these zones should only be approved under exceptional circumstances where environmental compatibility and hazard mitigation are unequivocally demonstrated. Otherwise, their conservation and  
Figure 10: Mapping of recommendations and limitations on use of the SE margin of the Ria de Arosa (right). protection should be prioritized as a primary recommendation. Due to the territorial context, spaces of a more recreational nature, such as adapted bathing areas, trails, rest areas, or viewpoints, may be established. Where the environmental impact study allows it, more invasive recreational activities, such as campsites with bungalows, motorcycle paths, or interpretation centres, could be developed. Potential locations for the development of such activities could be the tombolo of La Lanzada, the islands of Arosa and La Toja, the coastline around the Umia-Grove Bay, the marshes at the mouth of the Umia River, or the inland areas and coastal margins of the El Grove peninsula. Similarly, the western coastal sector of the Castrove peninsula, where successive geosites are recognized, would be an ideal area for the development of trails with interactive panels, promoting activities beneficial to the environment, such as geotourism. 2. Medium limitation degree: These represent areas of the territory where high conservation quality and geological hazards do not co-occur, but at least one of them is present. In the case of the study area, this scenario primarily occurs in areas of low conservation quality where some hazard is recognized. Areas where only high conservation importance is identified and no geological hazards are present are very few and not considered sufficiently representative. Thus, both scenarios are described within the same context. This scenario is identified in coastal areas, where flood risks and erosion rates are high, but which lie outside of the protected spaces of the Natura 2000 network. These are areas considered unfavorable for most anthropogenic activities. In such areas where a specific project is to be developed, it is again recommended to carry out an Environmental Impact Assessment. Furthermore, corrective or rehabilitation measures should be implemented during the pre-project phase to mitigate or reduce the negative effects posed by use limitations. This is well represented by the entire coastal area connecting the municipalities of Cambados and Villanueva de Arosa. The northernmost flank of the El Grove peninsula, near the town of the same name, also presents a similar situation. Lastly, this scenario is recognized around beach areas along the southeastern margin of the Castrove peninsula extending to Portonovo and Sangenjo. 3. Low limitation degree: These areas are characterized by low conservation quality and the absence of any recognized natural hazards. In these areas, the potential risk is lower, as no natural hazards are identified. The conditions are most favorable for the development of most anthropogenic activities. Agricultural or agronomic exploitations could take place in these areas.