Migratory birds rest on the frozen Wuliangsu Lake. [Photo/Grassland Media]

The ecological vitality of Wuliangsu Lake in North China's Inner Mongolia autonomous region is being restored, and its breathtaking beauty is returning.

As the largest wetland lake in the Yellow River Basin, Wuliangsu Lake plays a crucial role in regulating water flow, purifying the water, and preventing flooding.

It serves as a convergence zone for multiple ecological functions in northern China and acts as a natural ecological barrier that prevents sandstorms from attacking Beijing and Tianjin.

Since 2018, Bayannuur city has been implementing systematic treatment of the Wuliangsu Lake Basin.

Currently, the lake area of Wuliangsu is stabilized at 293 square kilometers, with water quality consistently categorized as Class V, and some areas even surpassing this classification.

Overall, the water quality has improved, attracting over 264 bird species and over 20 fish species.