Machine derived contents note: Preface iii -- Contributors vii -- 1. Soil Acidification: The World Story 1 -- Malcolm E. Sumner and Andrew D. Noble -- 2. Role of Carbon, Nitrogen, and Sulfur Cycles in Soil Acidification 29 -- Nanthi S. Bolan and Mike J. Hedley -- 3. Role of Plant Cation/Anion Uptake Ratio in Soil Acidification 57 -- Caixan Tang and Zdenko Rengel -- 4. Acid Inputs into the Soils from Acid Rain 83 -- Christine Alewell -- 5. Quantifying the Acid Balance for Broad-Acre Agricultural Systems 117 -- James Fisher, Art Diggle, and Bill Bowden -- 6. Modeling Acidification Processes in Agricultural Systems 135 -- Kirsten Verburg, Jorg Braschkat, Zvi Hochman, -- Andrew D. Moore, Keith R. Helyar, Mervyn E. Probert, -- John N. G. Hargreaves, and Richard J. Simpson -- 7. Using Geographic Information Systems (GISs) in Soil Acidification -- Risk Assessments 189 -- Patricia A. Hill -- 8. Micro- and Macroscale Heterogeneity of Soil Acidity 209 -- Bernhard Manderscheid -- 9. Measurements of H+ Fluxes and Concentrations in the Rhizosphere -- Benott Jaillard, Claude Plassard, and Philippe Hinsinger -- 10. Toxic Elements in Acid Soils: Chemistry and Measurement -- Neal W. Menzies -- 11. Using Lime to Ameliorate Topsoil and Subsoil Acidity -- Doug C. Edmeades and Anna M. Ridley -- 12. Role of Organic Matter in Alleviating Soild Acidity -- M. T. F. Wong and R. S. Swift -- 13. Fertility Management of Tropical Acid Soil for Sustainable -- Crop Production -- Nand K. Fageria and Virupax C. Baligar -- 14. Role of the Genotype in Tolerance to Acidity and -- Aluminum Toxicity -- David F. Garvin and Brett F. Carver -- 15. Managing Soil Acidification Through Crop Rotations -- in Southern Australia -- David R. Coventry, Alireza Farhoodi, and Ren-kou K. Xu -- 16. Managing Acidification and Acidity in Forest Soils -- Douglas L. Godbold -- 17. Role of pH in Phytoremediation of Contaminated Soils -- Jianwei W. Huang and Jianjun Chen Index.