Preface Pushing Forward the High-quality Development of the Water Sector in the New Stage and Comprehensively Safeguarding National Water Security��On the Occasion of 2022 World Water Day and China Water Week Fight Against Floods and Droughts by Scientific Regulation of Water Projects... g Water Infrastructure Construction Reached a New Level Improvement in the Layout of the National Water Network Enhancement in the Operation Management of Water Projects New Achievements in the Operation Management of the Three Gorges Project The Remarkable Benefits of the South-to-North Water Diversion Project Thoroughly Advancing the National Water-saving Campaign Continuous Promotion of the Intensive and Economical Utilization of Water Resources Orderly Promoting the Unified Regulation of Water Resources Promoting the River and Lake Chief System to Safeguard Healthy Rivers and Lakes Remarkable Progress in the Restoration of River and Lake Ecology Strengthening the Comprehensive Control of Soil Erosion Steady Progress in the Construction of the Digital Twin Program in the Water Sector Accelerating Legislation in Key Areas of the Water Sector Improving Water Supply Security in Rural Areas Advancing Rural Revitalization Through Water Conservancy Work Strengthening River Basin Governance with a Holistic Approach Progress in Innovation of Water Science and Technology Opening New Ground for International Water Cooperation Special Column 1 Investment in Water Infrastructure Construction Exceeded RMB 1 Trillion for the First Time Special Column 2 Water Flow Restored Along the Entire Course of the Beijing-Hangzhou Grand Canal for the First Time in a Century Special Column 3 Promulgation of the Yellow River Protection Lau Special Column 4 Construction of the Yangtze-to-Hanjiang Water Diversion Project Commenced Case 1 Changyi City of Shandong Province: Creating a ��Qingfu Model��for a Modern Water Network Case 2 Yangyuan County of Hebei Province: Multiple Measures to Solve the Challenge of Water Scarcity Attached Table Main Indices for Water Development in 2021