LHASA, China, May 22 -- A total of 170 scientists have been conducting research on water, ecology and human activities in the Mt. Qomolangma region.

This is part of China's second comprehensive scientific expedition to the Qinghai-Tibet Plateau.

Mt. Qomolangma is located on the Qinghai-Tibet Plateau, known as "the Roof of the World" and "the Water Tower of Asia."

Six years ago, China initiated the second scientific research survey of the Qinghai-Tibet Plateau to reveal the mechanism of environmental change and optimize the ecological security barrier system.

The ongoing expedition is believed to be of great significance for studying the impact of climate and environment change in the Mt. Qomolangma region on other parts of the world.