Serghei Shoba Editor

Pavel Krasilnikov is a Professor at the Faculty of Sciences of National Autonomous University of Mexico (UNAM), and is the Head of the Laboratory of Soil Geography and Ecology, Institute of Biology KarRC RAS, Petrozavodsk, Russia. Juan-Jos Ibáñez Marti is a Senior Researcher at Centro de Investigaciones sobre Desertificaci n, CIDE (CSIC-UV, Valencia, Spain) and also works at E.P.S. Area de Ciencias del Suelo y Qu mica Agr cola, University of Burgos, Spain. Richard W. Arnold has taught at University Guelph, Ontario (1963-1966), and Cornell University (1966-1980), and worked at USDA -NRCS (Washington DC) from 1980-2000 as Director of Soil Survey. He is now retired. Serghei Shoba is the Dean of the Faculty of Soil Sciences of Lomonosov University, the President of Dokuchaev's (Russian) Soil Science Society, and Editor-in-Chief of the journal 'Eurasian Soil Science'.

Additional Contributors:

Chapter 9 written together with Dr. P. Schad
Chapter 16 with Professor E. Micheli
Chapter 26 with Dr. A. Hernández Jiménez
Part III co-written by J. Tabor