黄河水沙不等式，这样求解——三十一次调水调沙，把超三十五亿吨黄河泥沙送入大海

Core Viewpoint - The 20th Central Committee of the Communist Party of China emphasizes accelerating the comprehensive green transformation of economic and social development to build a beautiful China. The Yellow River's water and sediment regulation is highlighted as a successful integration of traditional wisdom and modern technology in ecological practices [1]. Group 1: Water-Sediment Relationship Management - Since 2002, the Yellow River has conducted 31 water and sediment regulation operations, sending over 3.5 billion tons of sediment to the sea, significantly improving flood discharge and sediment transport capabilities [2][8]. - The management of the water-sediment relationship is crucial for ensuring the long-term stability of the Yellow River, with a focus on regulating and controlling sediment flow through coordinated reservoir operations [2]. Group 2: Reservoir Operations and Technology - The Xiaolangdi Reservoir serves as a key component in the water-sediment regulation process, with precise scheduling to manage sediment discharge effectively [3]. - Digital twin technology is utilized to enhance the efficiency of water and sediment regulation, allowing for real-time monitoring and adjustments to water flow [4][9]. Group 3: Data and Monitoring - The integration of 5.5 billion data points into the digital twin system allows for improved forecasting and operational precision in managing the Yellow River's water and sediment dynamics [9][11]. - Continuous monitoring and data collection are essential for understanding the relationship between water-sediment changes and aquatic life, with ongoing ecological assessments being conducted [12][13]. Group 4: Ecological Impact and Biodiversity - The implementation of water and sediment regulation has led to a stable river environment, positively impacting aquatic biodiversity, including the resurgence of rare fish species [12][13]. - The Yellow River Protection Law mandates measures to minimize the impact of water-sediment regulation on aquatic habitats, highlighting the importance of ecological considerations in water management practices [12].