Brief introduction of Yang Xiaoyan.

Yang Xiaoyan, female, doctor, was born in February 1972. 65438-0997, Bachelor of Engineering, Hebei Institute of Geology, then went to Peking University for further study. In 2003, he received his Ph.D. in Geomorphology and Quaternary Environment in Peking University. From 2003 to 2005, he was engaged in postdoctoral research on the relationship between loess and human culture and the origin of agriculture in the Institute of Geology and Geophysics of China Academy of Sciences. From 2007 to July 2008, he was engaged in postdoctoral research at the Smithsonian Institution of the National Museum of Natural History of the United States. In 2008, he is currently an associate researcher in the natural environment change and pattern research room of the Institute of Geographical Sciences and Resources, and China Academy of Sciences, mainly engaged in the research on ancient man-land relationship (environmental archaeology) and prehistoric land use history. As the backbone, he participated in many national key projects of the National Natural Science Foundation and the Tenth Five-Year Plan of the Ministry of Science and Technology, such as "Study on Disaster Events in the Middle and Lower Yellow River and Its Surrounding Areas in the Middle Holocene", "Study on the Interaction Mechanism between Man and Land in Northern China" and "Study on the Relationship between Man and Land in Northern China". He has successively presided over two national natural science foundation projects, namely, "Abnormal floods in the upper reaches of the Yellow River in the early and middle Holocene and their impact on human society" (completed) and "Morphological characteristics of starch grains of Panicum and Setaria in northern China and their application in agricultural origin research" (under study).