Resilience for Landslide Geohazards and Promoting Strategies in the Three Gorges Reservoir Area

Resilience is increasingly used as a concept for understanding natural disaster systems. Some countries have developed resilient city plans based on theoretical research and applied practice. Landslide is one of the most frequent geohazards in the Three Gorges Reservoir Area (TGRA). However, it is difficult to measure local disaster resilience, because of the special geographical location. Current approaches to disaster resilience evaluation are usually limited either by the qualitative method or properties of different disaster. Therefore, there is a great need to explore effective disaster resilience measurement methodologies. In this study, we developed an indicator system to evaluate landslides’ disaster resilience in the TGRE at the county level. It includes two properties of inherent geological stress and external social response, which are summarized into physical stress (Ps) and social forces (Sf). The evaluated disaster resilience can be simulated for promoting strategies with fuzzy cognitive map (FCM). The results show that: (1) The overall disaster resilience in the Three Gorges Reservoir Area was relatively low. (2) The resilience of the TGRA has spatial auto-correlation, that is, the areas with similar resilience are gathered in geographical location. (3) Proper policy guideline is essential to promote the disaster resilience. Policy promotes the system from all aspects in the TGRA.