The Three Gorges Reservoir area (TGRA), primarily characterized by hilly and mountainous terrain, has historically been a high-risk and frequent-occurrence area for geological hazards. Therefore, advance planning for geological hazard prevention in the TGRA is fundamental to ensuring long-term geological safety of the reservoir's towns and waterways. In this paper, we systematically analysis the planning, implementation and funding of key projects on geological hazard prevention in the TGRA since 2000. The results reveal that the planning strategies are closely linked with the construction phases of the Three Gorges Project. The master plan formulated before water storage in 2001 covered the second phase (2001-2003) and third phase (2004-2010) of the project construction. The follow-up work plan formulated in 2011 and its 2020 revision corresponded to the initial operation and comprehensive operation phases of the project respectively. Planned projects mainly include engineering treatment for collapse/landslide/perilous rock mass (CLP) , bank collapse/high-cut slope protection, relocation and avoidance, professional monitoring, and community-based monitoring. Particularly, As the geological hazard prevention in the TGRA advanced, the focus gradually shifted away from CLP engineering treatment projects, with the monitoring and early warning projects continuously enhanced. The funding structure also has evolved significantly. This research innovatively constructs a "project-funding-policy-theory" four-dimensional evolutionary analysis framework, reveals the paradigm shift from "engineering-dominated treatment" to "integrated risk management" in large-scale reservoir hazard prevention, and provides a theoretical reference for environmental planning and management in similar areas both domestically and internationally.
He et al. (Wed,) studied this question.