In A History of Water Engineering and Management in Yemen, Ingrid Hehmeyer describes the three-way relationship between water, land, and humans from ancient to medieval and premodern times. As illustrated in case studies from four sites, individual ecosystems necessitated different engineering and management approaches in order to make good use of the scarce water resources for both irrigated agriculture and domestic consumption. Material remains and written sources provide the evidence for a comprehensive examination of continuity and change; technical and managerial struggles, failures, and successes; the question of technology transfer; the impact of the religion of Islam on water use and allocation; and people’s reactions in times of severe crisis.

Environmental engineers continue to rely on the leading resource in the field on the principles and practice of water resources engineering. The second edition now provides them with the most up-to-date information along with a remarkable range and depth of coverage. Two new chapters have been added that explore water resources sustainability and water resources management for sustainability. New and updated graphics have also been integrated throughout the chapters to reinforce important concepts. Additional end-of-chapter questions have been added as well to build understanding. Environmental engineers will refer to this text throughout their careers.

Modeling aspects have added a new dimension in research innovations in all branches of engineering. In the field of soil and water engineering, they are increasingly used for planning, development, and management of land and water resources, including analysis of quantity and quality parameters of surface and ground water, flood forecasting and control measures, optimum allocation and utilization of irrigation water. The application of these models saves considerable time in decision support systems and helps in conservation and optimum allocations of scarce precious natural resources.

The comprehensive and compact presentation in this book is the perfect format for a resource/textbook for undergraduate students in the areas of Agricultural Engineering, Biological Systems Engineering, Bio-Science Engineering, Water Resource Engineering, and Civil & Environmental Engineering. This book will also serve as a reference manual for researchers and extension workers in such diverse fields as agricultural engineering, agronomy, ecology, hydrology, and meteorology.