With an average altitude of more than 5,000 meters, the Qiangtang Nature Reserve in Tibet has an area of 298,000 square km.

It became a state-level nature reserve in 2000 and is a habitat for wild animals such as Tibetan antelopes, donkeys, yaks and snow leopards on the state protection list.

The populations of wild Tibetan antelopes, donkeys and yaks in the nature reserve have seen great increase thanks to effective protection efforts in the past 20 years.

The number of Tibetan kiangs in the area has increased to 90,000 from 50,000 when the Qiangtang Nature Reserve was established in 1993.

Tibetan antelopes and wild yaks have increased to 160,000 and 60,000 respectively, compared with 60,000 and 6,000 at the establishment of the reserve.

Photo taken on July 17, 2014 shows kiangs in Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region. [Photo/Xinhua]

Photo taken on July 16, 2014 shows kiangs in Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region. [Photo/Xinhua]

Photo taken on July 17, 2014 shows blue sheep in Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region. [Photo/Xinhua]

Photo taken on July 15, 2014 shows Tibetan antelopes in Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region. [Photo/Xinhua]

Photo taken on July 17, 2014 shows blue sheep in Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region. [Photo/Xinhua]

Photo taken on July 16, 2014 shows wild yaks in Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region. [Photo/Xinhua]