![](http://www.ecns.cn/hd/2023/02/14/c5b72aef39d94d98aaa2a9400a0f04ef.jpg)
Aerial view shows salt pans in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Feb. 13, 2023. (Photo: China News Service/Li Lin)
An ancient technique of salt production dating back to 1,000 years ago is well-preserved in Tibet and local people follow a traditional salt harvesting method by collecting brines from salt mines and ponds and evaporating them in the sun until crystallization.
![](http://www.ecns.cn/hd/2023/02/14/62860a53d528414f8853875ba350b9c8.jpg)
Aerial view shows salt pans in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Feb. 13, 2023. (Photo: China News Service/Li Lin)
![](http://www.ecns.cn/hd/2023/02/14/5d97c1bf4bf24251a0164af30aba9bb7.jpg)
Crystallized salt hangs on salt pans in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Feb. 13, 2023. (Photo: China News Service/Li Lin)
![](http://www.ecns.cn/hd/2023/02/14/39959e7fac0e4f6ab06d5d202dbedbcd.jpg)
Aerial view shows salt pans in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Feb. 13, 2023. (Photo: China News Service/Li Lin)
![](http://www.ecns.cn/hd/2023/02/14/1d770c5f6cb940f4aca7571888dbee77.jpg)
Villagers work in salt pans in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Feb. 13, 2023. (Photo: China News Service/Li Lin)
![](http://www.ecns.cn/hd/2023/02/14/d414f09513b44d1dacc70fa9898ede16.jpg)
Villagers work in salt pans in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Feb. 13, 2023. (Photo: China News Service/Li Lin)
![](http://www.ecns.cn/hd/2023/02/14/51d7e11ed93c4742a32c3d44410d9a56.jpg)
Aerial view shows salt pans in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Feb. 13, 2023. (Photo: China News Service/Li Lin)
![](http://www.ecns.cn/hd/2023/02/14/c35730e40c17454586b7a2ba3799663a.jpg)
Aerial view shows salt pans in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Feb. 13, 2023. (Photo: China News Service/Li Lin)
![](http://www.ecns.cn/hd/2023/02/14/d08ab0a39fe24fb0a73d8c4f47ed16eb.jpg)
Aerial view shows salt pans in Mangkam County, Qamdo, southwest China's Tibet Autonomous Region, Feb. 13, 2023. (Photo: China News Service/Li Lin)