Salinity and Plant Tolerance - A publication from the Utah State University describing soil salinity, its causes, ways of measuring and salt tolerances for many common plants. July 1997.
Soil Ecology and Restoration Group - Primary focus is on soils and below-ground processes in arid and semiarid ecosystems with emphasis on microbial ecology and plant-microorganism relationships (San Diego State University, University of California Riverside, USA).
The Soil Ecology Society - An international organization of researchers, students, environmental professionals and others interested in the advancement and promotion of soil biology and ecology.