On November 26, the American Association for the Advancement of Science (AAAS) appointed Professor He Chansheng of Lanzhou university as its fellow for his outstanding contributions to the study of watershed hydrology. At the annual meeting of the AAAS, on February 15, 2020, in Seattle, USA, Prof. He and the other 442 newly elected members will be presented with certificates and medals, the symbol of distinguished achievements and fellowship honors.(https://www.aaas.org/page/2019-fellows)

AAAS is the largest scientific society around the world and hosts the internationally renowned journalScience. It has individual members in 91 countries and has 24 professional chapters, covering mathematics, physics, chemistry, astronomy, geography, biology and other natural sciences and social sciences. Its purpose is " to promote science and serve society", which is, to promote the development of science and innovation on a global scale for the benefit of the human.