QIMEN, May 19 (Xinhua) -- In recent years, Qimen County in Huangshan City, east China's Anhui Province, renowned for its black tea, has carried out digital upgrades of its tea industry.

As part of the efforts, smart sensors have been installed in tea gardens to monitor weather changes and soil moisture in real time, while sprinkler irrigation systems provide water as needed and support more precise maintenance. The county has also used drones to carry freshly picked tea leaves downhill in just a few minutes, greatly improving transport efficiency.

In addition, Qimen County has upgraded the entire black tea production chain by introducing integrated intelligent production lines to ensure standardized production. The upgrades help Qimen black tea expand overseas and further enhance the global competitiveness of Chinese black tea.