我国基本实现对重要河湖动态管理

Group 1 - The core viewpoint of the articles highlights the significant progress made in the management and protection of rivers and lakes in China, with a focus on establishing clear management boundaries and dynamic monitoring systems [1][2][3] Group 2 - A total of 1.7 million kilometers of riverways and over 3,000 lakes have defined management boundaries, achieving dynamic management of important water bodies [1] - The first national river and lake health evaluation has been conducted, resulting in the establishment of 21,600 health records for rivers and lakes, implementing a "one river, one file" management approach [1] - A comprehensive shoreline planning and control mechanism has been established, with 33,100 kilometers of shoreline protection and preservation zones designated, accounting for nearly 70% of the planned shoreline length [1] - An integrated monitoring and perception system for rivers and lakes has been developed, utilizing advanced technologies such as high-resolution satellite remote sensing and artificial intelligence to monitor water body changes and shoreline development [1] - The management system now covers 140,000 rivers, over 3,000 lakes, and 30,000 river construction projects, with a dynamic management of 3 million basic data entries related to rivers and lakes [1] - The "Clear Four Chaos" initiative has been implemented to address issues such as illegal occupation and construction, resulting in the cleanup of 294,000 cases of disorderly occupation, illegal sand extraction, and waste disposal [2] - The restoration of over 1,300 square kilometers of lake area has been achieved through the removal of illegal barriers and the reconnection of lake water bodies [2]