China launches scientific expedition at Yangtze headwaters

Liu Min, a scientific expedition member from Changjiang River Scientific Research Institute (CRSRI) of the Changjiang Water Resources Commission, collects water samples from Mogqu River in Yushu Tibetan Autonomous Prefecture, northwest China's Qinghai Province, Aug. 8, 2019. Chinese scientists recently launched a scientific expedition in the headwater region of the Yangtze River, China's longest river, aiming to explore the water resources and ecology in the region. (Xinhua/Wu Gang)