Professor of China Agricultural University, Consultant of the Disaster Prevention and Mitigation Expert Steering Group of the Ministry of Agriculture and Affairs. Former member of the Advisory Working Group, Committee of Agricultural Meteorological, WMO; former member of the council of the Chinese Association of Agricultural Science Societies; former vice president of Chinese Society of Agrometeorology; and former vice president of Beijing Society of Agronomy. Graduated from the Dept. of Agrometeorology, Beijing Agricultural University in 1966 and engaged in research and education of agricultural disaster reduction, agricultural ecological management, agrometeorology and adaptation to climate change for more than 50 yeare. Trained more than 20 graduate students, published 22 academic books(in Chinese) and more than 100 papers.