Toward Sustainable Agricultural Systems in the 21st Century

Toward Sustainable Agricultural Systems in the 21st Century
Author: National Research Council
Publisher: National Academies Press
Total Pages: 599
Release: 2010-06-25
Genre: Technology & Engineering
ISBN: 0309157498

In the last 20 years, there has been a remarkable emergence of innovations and technological advances that are generating promising changes and opportunities for sustainable agriculture, yet at the same time the agricultural sector worldwide faces numerous daunting challenges. Not only is the agricultural sector expected to produce adequate food, fiber, and feed, and contribute to biofuels to meet the needs of a rising global population, it is expected to do so under increasingly scarce natural resources and climate change. Growing awareness of the unintended impacts associated with some agricultural production practices has led to heightened societal expectations for improved environmental, community, labor, and animal welfare standards in agriculture. Toward Sustainable Agricultural Systems in the 21st Century assesses the scientific evidence for the strengths and weaknesses of different production, marketing, and policy approaches for improving and reducing the costs and unintended consequences of agricultural production. It discusses the principles underlying farming systems and practices that could improve the sustainability. It also explores how those lessons learned could be applied to agriculture in different regional and international settings, with an emphasis on sub-Saharan Africa. By focusing on a systems approach to improving the sustainability of U.S. agriculture, this book can have a profound impact on the development and implementation of sustainable farming systems. Toward Sustainable Agricultural Systems in the 21st Century serves as a valuable resource for policy makers, farmers, experts in food production and agribusiness, and federal regulatory agencies.

Irrigation Systems

Irrigation Systems
Author: Adrian Laycock
Publisher: CABI
Total Pages: 315
Release: 2011
Genre: Technology & Engineering
ISBN: 1845938747

Of all the confrontations man has engineered with nature, irrigation systems have had the most widespread and far-reaching impact on the natural environment. Over a quarter of a billion hectares of the planet are irrigated and entire countries depend on irrigation for their survival and existence. Considering the importance of irrigation schemes, it is unfortunate that until recently the technology and principles of design applied to their construction has hardly changed in 4,000 years. Modern thinking on irrigation engineering has benefited from a cross-fertilization of ideas from many other fields including social sciences, control theory, political economics and agriculture. However, these influences have been largely ignored by irrigation engineers. Drawing on almost 40 years of experience of irrigation in the developing world, Laycock introduces new ideas on the design of irrigation systems and combines important issues from the disciplines of social conflict, management, and political thinking.

21st Century Geography

21st Century Geography
Author: Joseph P. Stoltman
Publisher: SAGE
Total Pages: 911
Release: 2012
Genre: Science
ISBN: 141297464X

This is a theoretical and practical guide on how to undertake and navigate advanced research in the arts, humanities and social sciences.

Challenges of the New Water Policies for the XXI Century

Challenges of the New Water Policies for the XXI Century
Author: Enrique Cabrera
Publisher: CRC Press
Total Pages: 254
Release: 2004-06-23
Genre: Science
ISBN: 1482298317

The concept of sustainable development appeared almost twenty years ago, adapting traditional policies to new circumstances, and promoting progress capable of satisfying the necessities of both present and future generations. It is widely believed that the need for a proper and sustainable management of water will be a problem which

Dams and Reservoirs, Societies and Environment in the 21st Century, Two Volume Set

Dams and Reservoirs, Societies and Environment in the 21st Century, Two Volume Set
Author: Luis Berga
Publisher: CRC Press
Total Pages: 1370
Release: 2006-05-25
Genre: Technology & Engineering
ISBN: 1482262916

Water resources stored by dams and reservoirs play an essential role in water resource management, hydropower and flood control. Where there is an extensive network of dam infrastructures, dams have made a major contribution to economic and social development, providing considerable storage capacity per capita. However, dams and reservoirs may

A New Era for Irrigation

A New Era for Irrigation
Author: National Research Council
Publisher: National Academies Press
Total Pages: 213
Release: 1996-10-21
Genre: Technology & Engineering
ISBN: 0309175755

Irrigated agriculture has played a critical role in the economic and social development of the United Statesâ€"but it is also at the root of increasing controversy. How can irrigation best make the transition into an era of increasing water scarcity? In A New Era for Irrigation, experts draw important conclusions about whether irrigation can continue to be the nation's most significant water user, what role the federal government should play, and what the irrigation industry must do to adapt to the conditions of the future. A New Era for Irrigation provides data, examples, and insightful commentary on issues such as: Growing competition for water resources. Developments in technology and science. The role of federal subsidies for crops and water. Uncertainties related to American Indian water rights issues. Concern about environmental problems. And more. The committee identifies broad forces of change and reports on how public and private institutions, scientists and technology experts, and individual irrigators have responded. The report includes detailed case studies from the Great Plains, the Pacific Northwest, California, and Florida, in both the agricultural and turfgrass sectors. The cultural transformation brought about by irrigation may be as profound as the transformation of the landscape. The committee examines major facets of this cultural perspective and explores its place in the future. A New Era for Irrigation explains how irrigation emerged in the nineteenth century, how it met the nation's goals in the twentieth century, and what role it might play in the twenty-first century. It will be important to growers, policymakers, regulators, environmentalists, water and soil scientists, water rights claimants, and interested individuals.