《2025年长江流域及西南诸河水资源公报》发布

长江水利委员会发布了《2025年长江流域及西南诸河水资源公报》1。公报数据显示，2025年长江流域年降水量为1087.1毫米1，地表水资源量达8821.92亿立方米，地下水资源量为2338.95亿立方米1。整体而言，该年度水资源总量较多年平均值偏少9.6%1。

年末长江流域大型和中型水库蓄水总量为2259.96亿立方米，较年初增加184.98亿立方米1。供水总量为2048.98亿立方米，其中地表水源占95.8%，地下水源占1.5%，非常规水源占2.7%1。用水结构上，农业用水占50.8%，工业用水占27.7%，生活用水占17.2%，人工生态环境补水占4.3%1。人均综合用水量为438立方米1，万元GDP用水量为40.1立方米1。

The Yangtze River Commission has released the "2025 Water Resources Report for the Yangtze River Basin and Southwest Rivers," providing a comprehensive overview of the region's water availability and usage patterns 1. According to the report, the Yangtze River basin recorded annual precipitation of 1,087.1 millimeters in 2025 1. Surface water resources reached 8,821.92 billion cubic meters, while groundwater resources totaled 2,338.95 billion cubic meters, with total water resources falling 9.6 percent below the multi-year average 1.

Water storage across the basin's large and medium-sized reservoirs reached 2,259.96 billion cubic meters at year-end, representing an increase of 184.98 billion cubic meters from the beginning of the year 1. The total water supply for the basin amounted to 2,048.98 billion cubic meters, with surface water accounting for 95.8 percent of supply, groundwater for 1.5 percent, and non-conventional water sources for 2.7 percent 1. Per capita comprehensive water consumption in the region averaged 438 cubic meters, while water consumption per unit of GDP stood at 40.1 cubic meters 1.

Agricultural use dominated the basin's water consumption at 50.8 percent of total usage, followed by industrial use at 27.7 percent and domestic use at 17.2 percent, with artificial ecological and environmental water replenishment accounting for the remaining 4.3 percent 1.