Xining, Oct. 25 -- A 916-year-old Juniperus przewalskii -- commonly known as the Qilian juniper -- has been identified during a scientific survey in northwest China's Qinghai Province, local forestry authorities announced on Friday.

The tree, located in Baishushan within the Qaidam Basin, is now the oldest known specimen of its species.

The survey, conducted by the forestry and grassland bureau of Delingha City in the Mongolian-Tibetan Autonomous Prefecture of Haixi, focused on two key aspects: field inspections and laboratory analysis of samples. By examining 87 tree cores and disc samples, researchers determined the age structure of the Qilian juniper population in Baishushan.

Their findings revealed that approximately 2.3 percent of t...