Zeng (PhD, 1986, Brussels Free University; Post-doc 1986-1987, Princeton University) is tenured professor of National School of Development at Peking University, Honorary Director of Center for Healthy Aging and Development Study at Peking University. He is also tenured professor of Center for Study of Aging and Human Development and Geriatric Division, School of Medicine, and Director of Center for Chinese Population and Socioeconomic Studies, Duke University. He is a foreign member of Royal Netherlands Academy of Arts and Sciences, and Distinguished Research Scholar of Max Planck Institute for Demographic Research in Germany. Up to July 2021, he published 369 articles (196 in English,173 in Chinese) and 31 academic books (11 in English, 20 in Chinese); he submitted 51 policy reports to government agencies; his articles/books have been cited over 14,354 times in other scholars’ publications, his h-index is 54 and i10-index is 174; he was awarded 4 international academic prizes and 16 national academic prizes.

Zhang (PhD, 1989, Hohenehim University) is professor and Dean of the Institute of Green Agricultural Development; President of National Academy of Agriculture Green Development, China Agricultural University. He is member of Chinese Academy of Engineering and International Eurasian Academy of Sciences. His prizes include National Award of Nature Science, National Award of Science and Technology Advance, Science and Technology Award of Ho Leung Ho Lee Foundation, TWAS Prize in Agricultural Sciences; IFA International Crop Nutrition Award; Outstanding Achievement Award of Hohenheim University and GCHERA World Agriculture Prize. He holds honorary degrees, scientist appointments and professorships from 15 universities, including Wageningen University and Lancaster University. He is a member of International Plant Nutrition Council,Scientific Panel for Responsible Plant Nutrition, International Society of Root Research, Chinese Society of Soil Science, Global Partnership of Nutrient Management Steering Committee-UNEP, Chinese Society of Plant Nutrition and Fertilizer Science.