In Commemoration of Professor Tianren YU’s 100th Anniversary

Renkou XU and Guoliang JI

Institute of Soil Science,Chinese Academy of Science,Nanjing 210008(China)

Professor Tianren YU was born in 1920 in Shandong Province and passed away in 2004 in Nanjing,China.He graduated from the Department of Agricultural Chemistry,Northwest Agricultural College,China in 1945 and worked as assistant professor from 1950 to 1953 in Institute of geology,Chinese Academy of Sciences(CAS).Since 1953,he worked as assistant professor,associate professor,and professor in Institute of Soil Science,CAS and was elected as an academician of CAS in 1995.He established the Department of Soil Electrochemistry in the institute in 1961 and contributed his lifetime to soil electrochemical research.With help of his colleagues and students,he established series of electrochemical methods and used these methods in soil electrochemical research.He elucidated the electrochemical characteristics of paddy soils and variable charge soils and published three books:Physical Chemistry of Paddy Soils(Yuet al.,1983),Electrochemical Methods in Soil and Water Research(Yuet al.,1991),Electrochemistry of Variable Charge Soils(Yuet al.,1996).The English versions of these books were published by Science Press and Springer-Verlag in 1985,Pergmon Press in 1993,and Oxford in 1997,respectively.In 1997,he published as the first author a paper entitled“Acidity regimes of soils under different vegetations in the Changbai Mountains region”inPedosphere(Yuet al.,1997).2020 is the 100th Anniversary of Prof.Tianren YU.To memorialize Prof.Tianren YU,this paper is published again in the Supplementary Material.

SUPPLEMENTARY MATERIAL

Supplementary material for this article can be found in the online version.