Geosynthetics can, and have, played a pivotal role in providing the primary functions of filtration, drainage and erosion control. Within each category this book counterpoints the design, testing and performance of the various materials against one another. The facilitation of filtration by a number of different woven and non–woven geotextiles is discussed. Design is centred around a balance between open voids [for adequate permeability] and closed voids [for proper soil retention]. This balance is compromised by long term clogging or soil loss from either the upstream soil particles or by the nature of the permeating fluid. This is a major focal area of the book. One solution to excessive filter clogging is to open up the geotextile's voids and allow sediments and micro–organisms in the permeating fluid to pass through. The challenge then becomes the design and potential clogging of the drain. The drainage aspect of geosynthetics is the second focal area. Erosion control is closely related to both filtration and drainage. The tremendous design problems, and equally large repair problems on all types of facilities, are addressed. Highway slopes, earth dams, landfill covers and solid waste daily covers are a few common situations.

This book is used as a required text for undergraduate, graduate, and short courses in many countries. It represents the most updated material in the field of erosion/sediment control and the recovery of degraded land, being a handy tool for researchers, educators, consultants, expert witnesses, and students in general. TABLE OF CONTENTS UNIT I. INTRODUCTION TO EROSION PROCESSES Chapter 1. The phenomenon of soil erosion Chapter 2. Agents and types of erosion Chapter 3. Factors affecting soil erosion Chapter 4. Measurement of soil erosion UNIT II. HYDROLOGY AND DESIGN RUNOFF Chapter 5. Watershed hydrology Chapter 6. Precipitation and return period Chapter 7. Determining the design runoff UNIT III. METHODS AND PRACTICES Chapter 8. Geosynthetics Chapter 9. Fiber rolls Chapter 10. Silt fences Chapter 11. Hydroseeding Chapter 12. Design and implementation of turbidity curtains Chapter 13. Biotechnical and bioengineering techniques Chapter 14. Design of check dams Chapter 15. Design of stable non-vegetated channels Chapter 16. Design of stable vegetated channels Chapter 17. Design of stable channels with rip-raps Chapter 18. Design of terraces and infiltration trenches Chapter 19. Stabilization of bridges Chapter 20. Design of gabions Chapter 21. Design and implementation of groynes Chapter 22. Soil reinforcement Chapter 23. Lining of channels and riverside defenses Chapter 24. Rock slope stabilization Chapter 25. Post-fire erosion control Chapter 26. Coastal erosion control Chapter 27. Wind erosion control Chapter 28. Mine tiling remediation and phytoremediation Chapter 29. Dirt road stabilization and drainage Chapter 30. Land restoration in arid environments Chapter 31. Reservoir sediment management

Common Grasses, Legumes and Forbs of the Eastern United States: Identification and Adaptation presents photographic identification of the most important grassland, turf, and noncrop plants, and their seeds to facilitate quick identification in the field. Unlike many publications that focus solely on floral identification, this book emphasizes vegetative identification as well to allow for accurate plant identification year-round. The book includes 23 forage legumes, 61 grasses, and more than 100 nonleguminous forbs found in pastures and grasslands of Eastern United States. In addition to identification of important species, the book describes other key characteristics such as adaptation, favorable and unfavorable soil types, seasonal growth patterns, and toxicity. For plants harvested for hay or silage or by grazing, the book also discusses cutting and grazing management, quality factors, and potential yields. Through its practical approach and comprehensive structure, Common Grasses, Legumes and Forbs of the Eastern United States is a valuable reference for farm advisors, teachers and students of agronomy, and for anyone interested in the dynamic relationship between plants and agriculture. - Features full-color illustrations of both seed and plant, allowing for rapid identification at multiple stages of development - Presents various identification methods and use cases for over 180 plants - Details seasonal growth patterns and toxicity, as well as favorable and unfavorable soil types - Discusses cutting and grazing management

aThis document has been developed to provide assistance to erosion and sediment control practitioners in the planning, design, installation and maintenance of erosion and sediment control measures on construction and building sites.

Improve surface and subsurface drainage design and installation with this reference manual. Topics include soil and water relationships, topography and grades, and drainage materials and applications.