Principles of Agronomy for Sustainable Agriculture
Principles of Agronomy for Sustainable Agriculture

Author: Francisco J. Villalobos

Publisher: Springer

Published: 2017-01-25

Total Pages: 543

ISBN-13: 3319461168

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This textbook explains the various aspects of sustainable agricultures to undergraduate and graduate students. The book first quantifies the components of the crop energy balance, i.e. the partitioning of net radiation, and their effect on the thermal environment of the canopy. The soil water balance and the quantification of its main component (evapotranspiration) are studied to determine the availability of water to rain fed crops and to calculate crop water requirements. Then it sets the limitations of crop production in relation to crop phenology, radiation interception and resource availability (e.g. nutrients). With that in mind the different agricultural techniques (sowing, tillage, irrigation, fertilization, harvest, application of pesticides, etc.) are analyzed with special emphasis in quantifying the inputs (sowing rates, fertilizer amounts, irrigation schedules, tillage plans) required for a given target yield under specific environmental conditions (soil & climate). For all techniques strategies are provided for improving the ratio productivity/resource use while ensuring sustainability. The book comes with online practical focusing on the key aspects of management in a crop rotation (collecting weather data, calculating productivity, sowing rates, irrigation programs, fertilizers rates etc).

Traffic Congestion
Traffic Congestion

Author: Alberto Bull

Publisher: Santiago, Chile : United Nations, Economic Commission for Latin America and the Caribbean

Published: 2003

Total Pages: 202

ISBN-13:

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Perspectives on Integrated Coastal Zone Management
Perspectives on Integrated Coastal Zone Management

Author: Wim Salomons

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 393

ISBN-13: 3642601030

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All coastal areas are facing a growing range of stresses and shocks, the scale of which now poses threats to the resilience of both human and environmental coastal systems. Responsible agencies are seeking better ways of managing the causes and consequences of the environmental change process in coastal zones. This volume discusses the basic principles underpinning a more integrated approach to coastal management and highlights the obstacles that may be met in practice in both developed and developing countries. Successful strategies will have to encompass all the elements of management, from planning and design through financing and implementation, as highlighted in this book.

Hydropolitics in the Third World
Hydropolitics in the Third World

Author: Arun P. Elhance

Publisher: US Institute of Peace Press

Published: 1999

Total Pages: 340

ISBN-13: 9781878379917

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With more than 50 percent of the world's landmass covered by river basins shared by two or more states, competition over water resources has always had the potential to spark violence. And growing populations and accelerating demands for fresh water are putting ever greater pressures on already scarce water resources. In this wide-ranging study, Arun Elhance explores the hydropolitics of six of the world's largest river basins. In each case, Elhance examines the basin's physical, economic, and political geography; the possibilities for acute conflict; and efforts to develop bilateral and multilateral agreements for sharing water resources. The case studies lead to some sobering conclusions about impediments to cooperation but also to some encouraging ones--among them, that it may not be possible for Third World states to solve their water problems by going to war, and that eventually even the strongest riparian states are compelled to seek cooperation with their weaker neighbors.

Riparian Areas
Riparian Areas

Author: National Research Council

Publisher: National Academies Press

Published: 2002-10-10

Total Pages: 449

ISBN-13: 0309082951

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The Clean Water Act (CWA) requires that wetlands be protected from degradation because of their important ecological functions including maintenance of high water quality and provision of fish and wildlife habitat. However, this protection generally does not encompass riparian areasâ€"the lands bordering rivers and lakesâ€"even though they often provide the same functions as wetlands. Growing recognition of the similarities in wetland and riparian area functioning and the differences in their legal protection led the NRC in 1999 to undertake a study of riparian areas, which has culminated in Riparian Areas: Functioning and Strategies for Management. The report is intended to heighten awareness of riparian areas commensurate with their ecological and societal values. The primary conclusion is that, because riparian areas perform a disproportionate number of biological and physical functions on a unit area basis, restoration of riparian functions along America's waterbodies should be a national goal.

El complejo sistema hidrico de California
El complejo sistema hidrico de California

Author: Pamela Brunskill

Publisher: Triangle Interactive, Inc.

Published: 2022-01-21

Total Pages:

ISBN-13: 1684523656

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Where does California's water come from? Who are its users? How is water conserved? California has the largest economy and population in the United States, and its limited water supply must meet the demands of many people. Learn about the history of California's water system with this Interactiv-eBook that builds literacy and social studies content knowledge! Primary source documents help students look at the world and current issues with a historical lens, and encourage them to consider bias and the validity and reliability of sources. This leveled text offers instructional opportunities to guide students to increased fluency and comprehension of nonfiction text and is aligned to the National Council for Social Studies (NCSS) and other national and state standards. Essential text features include a glossary, index, captions, sidebars, and table of contents to increase understanding and build academic vocabulary. The Read and Respond activity immerses students in the content through diverse, engaging activities related to the content. The Your Turn! activity challenges students to connect to a primary source through a writing activity. Explore California's history with this Interactiv-eBook!

Impacts of Large Dams: A Global Assessment
Impacts of Large Dams: A Global Assessment

Author: Cecilia Tortajada

Publisher: Springer Science & Business Media

Published: 2012-02-02

Total Pages: 415

ISBN-13: 3642235700

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One of the most controversial issues of the water sector in recent years has been the impacts of large dams. Proponents have claimed that such structures are essential to meet the increasing water demands of the world and that their overall societal benefits far outweight the costs. In contrast, the opponents claim that social and environmental costs of large dams far exceed their benefits, and that the era of construction of large dams is over. A major reason as to why there is no consensus on the overall benefits of large dams is because objective, authoritative and comprehensive evaluations of their impacts, especially ten or more years after their construction, are conspicuous by their absence. This book debates impartially, comprehensively and objectively, the positive and negative impacts of large dams based on facts, figures and authoritative analyses. These in-depth case studies are expected to promote a healthy and balanced debate on the needs, impacts and relevance of large dams, with case studies from Africa, Asia, Australia, Europe and Latin America.