Streamlined to facilitate student understanding, this second edition, containing the latest techniques and methodologies and some new problems, continues to provide a comprehensive treatment of hydrology of watersheds, soil erosion problems, design and installation of soil conservation practices and structures, hydrologic and sediment yield models, watershed management and water harvesting. It also deals with the special requirements of management of agricultural and forested watersheds. This book is designed for undergraduate students of agricultural engineering for courses in hydrology, and soil and water conservation engineering. It will also be of considerable value to students of agriculture, soil science, forestry, and civil engineering. KEY FEATURES Emphasises fundamentals using numerous illustrations to help students visualise different phenomena Offers lucid presentation of field practices Presents the analysis and design of basic hydraulic structures Devotes an entire chapter to watershed management Provides numerous solved design problems and exercise problems to develop a clear understanding of the theory Gives theoretical questions, and objective type questions with answers to test the students’ understanding.

Emphasizes engineering design of soil and water conservation practices and their impact on the environment, primarily air and water quality. As in previous editions, the purpose of this book is to provide a professional text for undergraduate and graduate agricultural and biological engineering students and for others interested in soil and water conservation in rural and urban areas. Subject matter includes all the engineering phases of soil and water conservation for a one- or two-semester course.

Book is written in easy english language. It is useful for degree and diploma students of Agricultural Engineering and those working in this field.CONTENTSIntroduction H Rainfall and Runoff relationship H Soil erosion principles H Gully erosion H Design of permanent gully control structures H Stream bank erosion H Wind erosion H Erosivity and Erodibility H Prerequisites for soil and water conservation measures H Argonomical Practices to control Soil Erosion H Terracing H Bunding H Grassed Waterways and Diversions H Water harvesting H Farm ponds H Earthen Dam H Retaining wall H Culverts H Soil loss estimation-models H Land use capability classification H Sedimentation H Reservoir sedimentation H Grassland farming H Watershed Concept and Management H Glossary H Question Bank H Appendices H Bibliography H Subject Index.

This Special Issue includes manuscripts about soil erosion and degradation processes and the accelerated rates due to hydrological processes and climate change. The new research included in this issue focuses on measurements, modeling, and experiments in field or laboratory conditions developed at different scales (pedon, hillslope, and catchment). This Special Issue received investigations from different parts of the world such as Ethiopia, Morocco, China, Iran, Italy, Portugal, Greece, and Spain, among others. We are happy to see that all papers presented findings characterized as unconventional, provocative, innovative, and methodologically new. We hope that the readers of the journal Water can enjoy and learn about hydrology and soil erosion using the published material, and share the results with the scientific community, policymakers, and stakeholders to continue this amazing adventure, facing plenty of issues and challenges.

This book and software package provides a concise, practical guide for those involved in studying, planning, and designing urban stormwater management practices. The emphasis is on engineering calculations rather than theory. Many facets of stormwater management, from rainfall analysis and design storm selection procedures to runoff calculations and the evaluation of wet ponds for long-term, efficient water quality control. The book presents broadly used conventional methods and innovative techniques that are in line with current trends and needs. The book also includes the Soil Conservation Service's TR-20 computer software and a new easy-to-follow user's guide. From the Preface There has been much interest in urban stormwater hydrology during the past two decades due to the widespread recognition of the adverse effects of urbanization on stormwater runoff. During this period, many individuals and organizations developed innovative techniques to estimate and control the quantity and the water quality of urban stormwater runoff.

The Soil Conservation Service (SCS) curve number (CN) method is one of the most popular methods for computing the runoff volume from a rainstorm. It is popular because it is simple, easy to understand and apply, and stable, and accounts for most of the runoff producing watershed characteristics, such as soil type, land use, hydrologic condition, and antecedent moisture condition. The SCS-CN method was originally developed for its use on small agricultural watersheds and has since been extended and applied to rural, forest and urban watersheds. Since the inception of the method, it has been applied to a wide range of environments. In recent years, the method has received much attention in the hydrologic literature. The SCS-CN method was first published in 1956 in Section-4 of the National Engineering Handbook of Soil Conservation Service (now called the Natural Resources Conservation Service), U. S. Department of Agriculture. The publication has since been revised several times. However, the contents of the methodology have been nonetheless more or less the same. Being an agency methodology, the method has not passed through the process of a peer review and is, in general, accepted in the form it exists. Despite several limitations of the method and even questionable credibility at times, it has been in continuous use for the simple reason that it works fairly well at the field level.