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, Zhang Guoqing, assistant researcher with the Institute of Qinghai-Tibet Plateau Research with the Chinese Academy of Sciences said.
Lake areas in Tibet were increasing 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 was quoted as saying by state-run Xinhua news agency today.
The lake's growth has inundated several pastures but has also improved the ecology in the area, officials in Xainza and Bangoin Counties in Nagqu Prefecture, where the lake is located, said.
Due to global warming, glaciers in the region have shrunk by 15 per cent in the past 30 years.
Annual runoff from glaciers rose from 61.5 billion cubic meters to 79.5 billion cubic meters during the same period, which replenished the surface water, rivers and lakes, Zhang said.