Preface. Foreseeable Impacts of Soil Mineral-Organic Component-Microorganism Interactions on Society: Ecosystem Health (P.M. Huang). Sorption of Copper and Cadmium by Allophane-Humic Complexes (G. Yuan et al.). Colloid-Mediated Transport of Metals Associated with Lime-Stabilized Biosolids (A.D. Karathanasis, D.W. Ming). Heavy Metals and Litter Decomposition in Coniferous Forests (A. Virzo De Santo et al.). Direct and Indirect Effects of Organic Matter on Metal Immobilisation in Soil (S. Staunton). Effects of Medium-Term Amendment with Sewage Sludges on Heavy Metal Distribution in Soil (G. Rossi et al.). Uptake and Accumulation of Selenium and Sulfur by Plants as Related to Soil Factors in Poland (K. Borowska). The Role of Soil Organic Matter and Water Potential in Determining Pesticide Degradation (K.M. Webb, L.A.G. Aylmore). Variability of Pesticide Mineralization in Individual Soil Aggregates of Millimeter Size (L. Vieublé et al.). The Effect of Soil Mineral-Organic Matter Interaction on Simazine Adsorption and Desorption(Á. Zsolnay et al.). Sorption and Release of Endocrine Disruptor Compounds onto/from Surface and Deep Horizons of Two Sandy Soils (E. Loffredo, N. Senesi). Distribution of Trinitrotoluene between Aqueous and Solid Phase Soil Organic Matter (J. Eriksson, U. Skyllberg). Retention and Mobility of Chemicals in Soil (M. De Nobili et al.). Soil Aggregate Hierarchy in a Brazilian Oxisol (G. Vrdoljak, G. Sposito). Energy Dispersive X-Ray Microanalysis and its Applications in Biogeochemical Research (T.A. Jackson, G.G. Leppard). Influence of pH and of Several Organic Acids on the Interaction between Esculetine and Iron (III) (S. Deiana et al.). Adsorption of Phosphate on Variable Charge Minerals and Soils as Affected by Organic and Inorganic Ligands (A. Violante et al.). Relationships between Organic and Inorganic P Fractions with Soil Fe and Al Forms in Forest Soils of Sierra de Gata Mountains (Western Spain) (M.B. Turrión et al.). Effects of Organic Ligands on Adsorption of Phosphate on a Noncrystalline Al Hydroxide (H.Q. Hu et al.) Reactions of some Short-Range Ordered Aluminosilicates with Selected Organic Ligands (E. Hanudin et al.). The Role of Clays in the Restoration of Perturbed Ecosystems (G.J. Churchman). New Approaches to the Molecular Structure and Properties of Soil Organic Matter: Humic-, Xenobiotic-, Biological-, and Mineral-Bonds (H.-R. Schulten). Impact of Changing Forest Management on Soil Organic Matter in Low Mountain Acid Media (F. Andreux et al.). Effect of Concentration on the Self-Assembling of Dissolved Humic Substances (P. Conte, A. Piccolo). Pore Size Changes in a Long-Term Field Experiment with Organic Amendments (H. Kirchmann, M.H. Gerzabek). Capacity of Organically Complexed Aluminum, Ionic Strength, and pH to Affect the CEC of Organic Samples (G. Matschonat). Abiotic Reactions of Organics on Clay Mineral Surfaces (U. Birkel et al.). The Interaction between Ferricyanide Ion and Unfractionated Humic Substances (A. Mori et al.). Index