Contents -- Contributors -- Preface -- Introduction -- 1 Organic Matter and Sustainability -- 1.1 Critical Levels of Soil Organic Matter: the Evidence for England and Wales -- 1.2 FT-IR Studies on Soil Organic Matter from Long-term Field Experiments -- 2 Modelling Soil Organic Matter Dynamics - Global Challenges -- 2.1 Soil Organic Matter Sustainability and Agricultural Management - Predictions at the Regional Level -- 2.2 Modelling of Carbon Dynamics in a Rural Area of Central Germany -- 2.3 Modelling Variation in C and N Loss and Effects on N Mineralization After Grassland Ploughing Over a Catchment -- 2.4 Modelling Decomposition of Sugarcane Surface Residues and the Impact on Simulated Yields -- 2.5 Questionable Assumptions in Current Soil Organic Matter Transformation Models -- 2.6 A Procedure for Isolating Soil Organic Matter Fractions Suitable for Modelling -- 3 Soil Organic Matter Management: The Roles of Residue Quality in C Sequestration and N Supply -- 3.1 Crop Residue Effects on Soil C and N Cycling under Sugarcane -- 3.2 Effect of Residue Quality on N2O Emissions from Tropical Soils -- 3.3 Evaluation of the Soil Organic Matter Dynamics Model MOTOR, for Predicting N Immobilization/Mineralization Following Field Incorporation of Paper Mill Sludge in a Horticultural Soil -- 3.4 Organic Matter Management in Practice - The Potential to Reduce Pollution -- 3.5 Carbon and Nitrogen Losses after Ploughing out Grass and Grass-Clover Swards -- 3.6 Fate and Behaviour of Organic Contaminants During Composting of Municipal Biowaste -- 3.7 The Impact of Changing Farming Practices on Soil Organic Matter and Soil Structural Stability of Fen Silt Soils -- 3.8 Crop Management Systems to Conserve Soil Fertility After Long-term Setaside in Southern Italy.

3.9 Modelling Traditional Manuring Practices in the North Atlantic Context: Soil Sustainability of a Shetland Island Community? -- 3.10 Organic Matter and Anthrosols in Amazonia: Interpreting the Amerindian Legacy -- 3.11 Persistence of Soil Organic Matter in Archaeological Soils (Terra Preta) of the Brazilian Amazon Region -- 3.12 Organic Matter Dynamics in Soils of the Former Lake Texcoco, Mexico -- 3.13 Low-input Ecological Rice Farming in Bangladesh -- 3.14 The Influence of Cultivation on the Composition and Properties of Clay-Organic Matter Associations in Soils -- 3.15 The Influence of a Grass-Clover Mixture on Soil Organic Matter and Aggregation of a Podzolic Loamy Sand Soil -- 4 The Role of Soil Organic Matter and Manures in Sustainable Nutrient Cycling -- 4.1 Can Concepts of N Saturation Developed for Forest Systems be Applied in Arable Soils? -- 4.2 Nitrogen Mineralization Under Bare Soils After the Destruction of Grazed Pastures -- 4.3 Dissolved Organic Nitrogen in a Peaty Podzol: Influence of Temperature and Vegetation Cover -- 4.4 Dissolved Organic Nutrients (N, P and S) in Shallow Forest Soils: Fluxes and Spectroscopic Characterization -- 4.5 Dissolved Organic Carbon Losses from Grazed Grasslands -- 4.6 Effects of Sterilization and Incubation Temperature on Formation and Quality of Dissolved Organic Matter in Soils -- 4.7 Nitrogen Fluxes Through Sustainable Farming Systems in the Mid-hills of Nepal -- 4.8 N, P and K Budgets for Some UK Organic Farming Systems - Implications for Sustainability -- 4.9 The Effects of All-arable Organic Rotations on Soil Organic Matter Levels and the Phosphorus and Potassium Status Over the Period 1987-1998 -- 4.10 Manure Fertilization for Soil Organic Matter Maintenance and its Effects Upon Crops and the Environment, Evaluated in a Long-term Trial.

4.11 Effect of Elevated CO2 and Temperature on Soil C and N Cycling -- 4.12 Interactions Between Elevated CO2 and N in Soils: Influence on N2O Fluxes and Rhizosphere Denitrifier Activity -- 4.13 Carbon Mitigation Options in Agriculture: Improving our Estimates for Kyoto -- 4.14 Soils and Soil Organic Matter Along a Transect from Central Taiga to Forest Tundra, Siberia -- 4.15 Carbon Dynamics in Upland Soils after Serious Fires -- 5 Implications of Soil Biodiversity for Sustainable Organic Matter Management -- 5.1 Microbial Catabolic Evenness: A Potential Integrative Indicator of Organic Matter Management? -- 5.2 'DOK' Long-term Farming Systems Trial: Microbial Biomass, Activity and Diversity Affect the Decomposition of Plant Residues -- 5.3 Comparison of Phenotypic, Functional and Genetic Diversity of Bacterial Communities in Soils -- 5.4 Organic Matter in Restored Soils as Affected by Earthworms and Land Use -- 5.5 Rhizosphere Effects on Soil Microbial Biomass Size and Turnover in a Soil of High and Low Fertility -- 6 Soil Teeming with Life: New Frontiers for Soil Science -- 6.1 Sustaining Soil Organic Matter -- Index.