1981, MA, History Dept. and 1983, PhD, Fudan Univ. 1965-78, taught middle school. Since 1981, with Fudan Univ.: 1996-2007, Director, Inst. of Chinese Historical Geography; currently, Director, Library, and Professor of Historical Geography. Member, Social Sciences Committee, Ministry of Education. Chairman, Committee on Historical Geography, Geography Association of China. Member: China's National Committee for the Int'l Geosphere-Biosphere Programme; Standing Committee, Chinese People's Consultative Conference. Adviser, Shanghai Municipal Government. Author of: History of Population in China; History of Migration in China; A Perspective of Chinese History: Unification and separation.