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About this book
About this book
The text will provide the erosion model user with the tools to evaluate different erosion models and select the most appropriate for a specific purpose compatible with the input data available. The first portion of the book describes how models are developed, and shows the advantages and limitations of each model. The second portion explains how the models are used in practice. Each chapter describes a specific problem, and the model criteria, selection and implementation needed. Problems covered range from agriculture, construction, pollution and climatic change.
CONTENTS. PART ONE: MODEL DEVELOPMENT. 1. Introduction. Background to importance of erosion modelling. Problems facing model users. Purpose of the Handbook. 2. Model development. Stages in the development of a model from concept to structure and selection of operating functions. 3. Model calibration and validation. Reasons for calibration. Data requirements. Validation methods and procedures,. 4. Dealing with uncertainty. Reasons for uncertainty in model output. Expected levels of accuracy. Methods for reducing uncertainty. 5. Scaling issues. Field, hillslope and catchment scales; problems of upscaling; interconnectivity between slope and river systems. 6. Misapplications and misconceptions of models. Problems arising from model misunderstanding and wrong applications. The Universal Soil Loss Equation as a case study. 7. Theoretical issues of modelling physical systems in erosion models. Problems of expressing physical systems in mathematical terms over time and space. . PART TWO: MODEL APPLICATIONS. 8. Universal Soil Loss Equation / Revised Universal Soil Loss Equation. Application to an agricultural situation and soil conservation design in the United States. 9. Universal Soil Loss Equation. Application to construction sites. 10. WEPP. Application to an agricultural problem in the United States. 11. WEPP. Application to a problem in South America. 12. RHEM. Application of the Rangeland Hydrology and Erosion Model to arid and semi-arid rangeland. 13. EUROSEM. Application to an agricultural or environment problem in England. 14. EUROSEM. Application to an agricultural catchment in Kenya. 15. GUESS. Application to a management problem in southeast Asia. 16. LISEM. Application to a catchment in China. 17. MORGAN-MORGAN-FINNEY Model. Application to use of buffers for pollution control on farm in England. 18. MEDRUSH Suite. Application to catchment in the Mediterranean environment. 19. SHE. Application to catchment in either Europe or southeast Asia. 20. Erosion modelling within agricultural environments. Application of a Russian erosion model to a problem in Russia. 21. RHINEFLOW. Application to large catchments - River Rhine case study. 22. Modelling erosion within changing climates. Case studies of the new generation of erosion models as applied to climatic change in North America and Europe. 23. Erosion modelling within geospatial frameworks. Application of an erosion model to a problem requiring geospatial data and geospatial analysis. 24. Web-based applications of erosion models. Development of interactive, web-based tools for erosion assessment, and linkages to on-line databases. 25. Risk-based erosion assessment. Application to forest watershed management and planning. 26. Risk-based erosion assessment. Application to potential erosion along pipeline rights-of-way in Georgia SSR.. 27. Long-term erosion and landscape models. Application to geomorphological research. . PART THREE: FUTURE DEVELOPMENTS. 29. Future of erosion modelling. Challenges for model development. Requirements for future models.
Roy Morgan is Emeritus Professor at Cranfield University, Bedfordshire, UK. His research interests cover soil erosion processes, the role of vegetation in soil erosion control and soil erosion modelling. He was involved in the development of EUROSEM (the European Soil Erosion Model). He is a Past-President and Honorary Member of the European Society for Soil Conservation and the author of Soil erosion and conservation (3rd edition, Blackwell 2005). Dr Mark Nearing has authored more than 200 scientific papers on the subject of soil erosion over the past 25 years. He is Past President and serves on the Board of Directors of the International Soil Conservation Organization and has organized and presented keynote presentations at numerous international meetings.