The secnery of Lake Serling Tso,northwest China's Qinghai Province.[Photo/Xinhua News Agency]

The Lake Serling Tso has become the second largest salt lake of China,the Xinhua News Agency reported.

The Serling Tso was measured at 2,391 square kilometers in June, 369 square km larger than the Namtso, which also makes it the second biggest salt lake in China, said Zhang Guoqing, assistant researcher with the Institute of Qinghai-Tibet Plateau Research with the Chinese Academy of Sciences.

Lake areas in the southwestern autonomous region have been growing in recent years, but the expansion of the Serling Tso has been remarkable, with its area growing by 535 square km, one-third of its original size, in the past decade, Zhang said.

The second largest salt lake of China used to be the world's highest Lake Namtso in the Nagqu Prefecture of Tibet,with an altitude of 4,725 meters above the sea level.