In the winter, the Liaohe Estuary National Nature Reserve in northeast China's Liaoning Province turns into a vast icy landscape. Golden reed beds are carefully harvested, leaving neat stubble to protect new shoots and ensure safe resting grounds for migratory birds. Home to hundreds of species, including red-crowned cranes and Chinese black-headed gulls, the wetland is a vital ecological barrier in Northeast Asia. Timely winter harvesting helps reeds regenerate in spring, purifies water, regulates the climate and creates better feeding and shelter conditions for overwintering birds, highlighting a balance between sustainable use and ecological protection.