解封长度已过半 黄河防汛四级应急响应启动

Core Points - The current period is critical for the Yellow River's ice prevention efforts [1] - As of 8 AM today, the Sanhu River estuary has thawed, with the opening date being 7 days earlier than the average [1] - A total of 412.4 kilometers of the Yellow River has opened, with 316 kilometers still frozen, indicating that more than half of the frozen sections have thawed [1] - The Yellow River Flood Control Headquarters has initiated a Level IV emergency response for flood prevention at noon today [1] - The Yellow River Water Resources Commission has also activated a Level IV flood defense response [1] - It is expected that all frozen sections of the Yellow River will be thawed by mid to late March [1]