Exploration and practice of the “dual control of point and zone” system for geological hazards in Xide County, Sichuan Province

The dual control of geological hazard hidden points and risk zones is one of the important tasks for geological hazard prevention during China’s 14^th Five-Year Plan period. Pilot provinces and regions are actively exploring effective approaches to implement the “dual control of point and zone”, leading to the establishment of management systems, responsibility frameworks, and technical methods for this purpose. Drawing on the geological environmental conditions and the outcomes of hazard prevention and reduction efforts in Xide County, Sichuan Province, this paper summarizes the practices and experiences of “dual control” for geological hazards in the region. Integrating with the existing four geological hazard systems, a comprehensive “dual control of point and zone” framework comprising five components is proposed, including: (1) The “investigation, evaluation and dynamic adjustment” component aims to enhance the pertinence, timeliness, operability, and adaptability of the “dual control of point and zone”. (2) The “monitoring, early warning and response processing” component focus on improving the monitoring coverage, warning accuracy, and response efficiency of the “dual control of point and zone”. (3) The “normal management and defense” component seeks to elevate the regular defense capability and management level of the “dual control of point and zone”, promoting the transformation of defense and management towards digitalization and intelligence. (4) The “science popularization, training and drills” component aims to enhance the national cognition level and hazard avoidance capability regarding the “dual control of point and zone”. (5) The “system construction” component seeks to improve the responsibility system, and establish the “dual control” mechanism. The above achievements have realized the dynamic monitoring of risks and hidden dangers and regular defense in Xide County, enhancing the geological hazards prevention and control capabilities in the area, which can serve as a scientific reference for other regions.