The Pearl River Commission issued the "Pearl River River Sediment Bulletin 2025": the total runoff volume is 325.6 billion cubic meters.

China News Service, Guangzhou, September 26 (Reporter Wang Jian) ​​According to news from the Pearl River Water Conservancy Commission of the Ministry of Water Resources (hereinafter referred to as the "Pearl River Commission") on the 26th, the Commission recently issued the "Pearl River River Sediment Bulletin 2025" (hereinafter referred to as the "Gulletin").

The "Bulletin" shows that in 2025, the total runoff of the representative hydrological stations of the major rivers in the Pearl River system will be 325.6 billion cubic meters, and the total sediment transport volume of the representative stations will be 36.5 million tons. Among them, the runoff of Bakou, Sanshui and Boluo representative stations in 2025 will account for 64%, 17% and 6% of the total runoff of the representative stations respectively, and the sediment transport will account for 79%, 15% and 2% of the total sediment transport of the representative stations respectively. Comparing the test sections of seven typical hydrological stations including Wuzhou in 2025 with that in 2024, Wuzhou, Gaoyao, Shijiao and Makou hydrological stations have significantly changed, while the sections at Boluo, Sanshui and Tianhe hydrological stations are basically stable. Affected by extreme heavy rains in 2025, a catastrophic flood occurred in the Duliu River and the largest flood since 2001 in the Yujiang River, resulting in two regional sediment events and a significant increase in river sediment transport.

The compilation scope of the "Communique" includes the Pearl River Basin, Hanjiang River Basin, international rivers east of the Lancang River (excluding Lancang River), coastal rivers in Guangdong and Guangxi and rivers in Hainan Island. The main contents include the annual runoff, annual sediment load and intra-year changes of the river's main hydrological stations, water and sediment characteristics and flood sediment characteristics in the past 10 years, typical section erosion and sedimentation changes, and important sediment events.

The Pearl River Committee stated that since 2010, the committee has issued a river sediment bulletin on the Pearl River every year, providing scientific basis for comprehensive management of the river basin, flood and drought disaster prevention, water resources management, construction and operation of water-related projects, and water ecological restoration, and providing an authoritative channel for the public to understand the sediment conditions of the Pearl River.