As the world population increases, there is increasingcompetition for waterquantity as well as quality.Provided here is an up-to-date perspective on AvailableWater Resources (Part I), Water Conservation and TechnologyinAgricultural Systems (Part II), Problem Water Uses andTreatment (Part III),and Management and Policy Evaluation(Part IV).The book is an invaluable source of information for waterresource planners, managers and policy makers, researchersand students, and irrigationists.