Core Viewpoint - The continuous heavy rainfall in Sichuan province has led to increased pressure on flood prevention efforts, particularly for aging and potentially hazardous reservoirs, while also presenting an opportunity for water storage as the flood season approaches its end [1][2][3]. Group 1: Flood Prevention Challenges - Sichuan has issued yellow rainstorm warnings for three consecutive days, with September experiencing multiple rounds of heavy rainfall, which is unusual for this time of year [1]. - The provincial flood control command has activated four level-four flood emergency responses since late August, compared to only one response during the same period last year [2]. - The region's reservoirs, many of which are old and in poor condition, face significant challenges due to the prolonged heavy rainfall, which can lead to structural instability [2]. Group 2: Reservoir Conditions and Management - Sichuan has over 8,000 reservoirs, with more than 170 large and medium-sized ones, playing crucial roles in flood control, irrigation, water supply, and power generation [2]. - Over 80% of the reservoirs were built between the 1950s and 1970s, with a high proportion being small and earth-rock dams, which are often below standard and pose risks [2]. - The current rainfall provides a valuable opportunity for water storage, which is critical for addressing water shortages in the winter and spring [5]. Group 3: Future Water Storage Plans - The provincial water resources department is preparing for water storage efforts as the flood season concludes, emphasizing the need to increase reservoir water levels while ensuring flood safety [5]. - Recent rainfall has already led to increased water levels in several major reservoirs, indicating a positive trend for upcoming water storage initiatives [5].

Core Viewpoint - Dongying City is implementing a modernized reservoir management matrix to enhance water resource management and operational efficiency, focusing on digital empowerment, systematic governance, practical science, and sustainable effectiveness [3][5]. Group 1: Digital Empowerment - The Gaodian Reservoir developed an integrated model for "regulation and storage control," achieving a stable annual water supply of 53 million cubic meters, with a supply guarantee rate increasing from 85% to 95% and a 40% improvement in dispatch plan accuracy [4]. - The Yongzhen Reservoir established the province's first "smart patrol" scenario, enhancing patrol efficiency by 60% and saving over 500,000 yuan in annual operational costs through 3D simulation, video monitoring, and electronic fencing [4]. Group 2: Systematic Governance - Dongying City innovated a "full-chain integrated" operation and maintenance model, reducing annual maintenance costs by over 1 million yuan and increasing equipment availability from 80% to 98% [5]. - The Gaodian Reservoir collaborated with academic institutions to create a routine mechanism for seepage monitoring and safety evaluation, improving the timeliness of safety hazard detection by 50% [5]. Group 3: Practical Science - The Gaodian Reservoir constructed a dual evaluation model for benefits and safety, reducing water transfer costs by 12% and providing scientific support for dam safety assessments [6]. - The Yongzhen Reservoir developed a dual rehearsal model for "water transfer and reservoir charging," increasing water utilization efficiency by 10% and achieving a win-win situation for economic and ecological benefits [6]. Group 4: Sustainable Effectiveness - A closed-loop mechanism for hazard investigation and rectification was established at the Yongzhen Reservoir, ensuring dynamic clearance of potential hazards [7]. - The Gaodian Reservoir formulated a "Safety Operation Manual," incorporating data on water levels and seepage for daily monitoring, ensuring traceability of data, risk management, and accountability [7]. - As of now, the two pilot reservoirs have improved water supply capacity by 15%, reduced operational costs by 30%, and achieved a 20% increase in comprehensive benefits, while overcoming three major technical bottlenecks in intelligent scheduling, professional operation, and benefit integration [7].

Core Insights - The article highlights the successful management and ecological restoration of the Ersheng Reservoir, emphasizing its role in water supply and environmental protection [1][2][3] Group 1: Water Management and Supply - The Ersheng Reservoir has a total capacity of 57.2 million cubic meters and is crucial for irrigating 11,000 acres of farmland and providing water for over 100,000 residents [1] - Due to drought conditions, the reservoir's capacity decreased by approximately 5 million cubic meters, leading to a water replenishment of about 3.1 million cubic meters over 24 days starting from April 14 [1] Group 2: Infrastructure and Safety - The reservoir has completed hazard mitigation works, with the dam rated as a "Class I dam," ensuring stable operation of its spillway and water conveyance structures [2] - The implementation of an automated monitoring system allows for real-time tracking of water levels, water quality, and structural conditions, maintaining a water quality standard of Class II with a 100% compliance rate [2] Group 3: Ecological and Community Impact - The reservoir's management under the "River Chief System" has improved flood control capabilities and promoted ecological restoration, leading to a thriving ecosystem that attracts various bird species and enhances local biodiversity [2] - The area has become a popular recreational spot for residents and tourists, contributing to the local economy and community engagement [2][3]