Quantifying and Managing Soil Functions in Earth’s Critical Zone

DONALD L. SPARKS is the Unidel S. Hallock du Pont Chair and Francis Alison Professor at the University of Delaware. He is internationally recognized for his research in the areas of kinetics of biogeochemical processes and surface chemistry of natural materials. His research has focused on fate and transport of trace metals in soil and water, soil remediation, water quality, and carbon sequestration in soils. Dr. Sparks is the author of two previous editions of Environmental Soil Chemistry and more than 350 refereed papers and book chapters. He is fellow of five scientific societies, and he has been the recipient of major awards and lectureships including the Geochemistry Medal from the American Chemical Society, the Liebig Medal from the International Union of Soil Sciences, the Einstein Professorship from the Chinese Academy of Sciences and the Philippe Duchaufour Medal from the European Geosciences Union. Dr. Sparks served as president of the Soil Science Society of America and the International Union of Soil Sciences, has served on advisory committees for several national laboratories and national and international centers and institutes, and served as chair of the U.S. National Academy of Sciences (NAS) Committee for Soil Sciences and other NAS Committees.

1. Soil Functions in Earth's Critical Zone: Key Results and Conclusions 2. Soil Water Characteristics of European SoilTrEC Critical Zone Observatories 3. Reduced Subsurface Lateral Flow in Agroforestry System Is Balanced by Increased Water Retention Capacity: Rainfall Simulation and Model Validation 4. Interception of Subsurface Lateral Flow Through Enhanced Vertical Preferential Flow in an Agroforestry System Observed Using Dye-Tracing and Rainfall Simulation Experiments 5. Effects of Dry and Wet Sieving of Soil on Identification and Interpretation of Microbial Community Composition 6. Soil Mineralogy Changes With Different Agricultural Practices During 8-Year Soil Development From the Parent Material of a Mollisol 7. Modeling Soil Aggregation at the Early Pedogenesis Stage From the Parent Material of a Mollisol Under Different Agricultural Practices 8. Quantifying the Incipient Development of Soil Structure and Functions Within a Glacial Forefield Chronosequence 9. Factors Controlling Soil Structure Dynamics and Carbon Sequestration Across Different Climatic and Lithological Conditions 10. Integrated Critical Zone Model (1D-ICZ): A Tool for Dynamic Simulation of Soil Functions and Soil Structure 11. Modeling the Impact of Carbon Amendments on Soil Ecosystem Functions Using the 1D-ICZ Model 12. Valuation of Soil Ecosystem Services 13. European Contribution Towards a Global Assessment of Agricultural Soil Organic Carbon Stocks