El complejo sistema hídrico de California (California's Complex Water System) 6-Pack PDF Download

Author:
Publisher: Teacher Created Materials
ISBN: 0743913345
Category : Juvenile Nonfiction
Languages : es
Pages : 35

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Book Description

Author:
Publisher: Teacher Created Materials
ISBN: 0743913132
Category : Juvenile Nonfiction
Languages : es
Pages : 35

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Book Description

Author: Lucila Candela
Publisher: IGME
ISBN: 9788440491329
Category : Aquifers
Languages : es
Pages : 164

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Book Description

Author: Francisco J. Villalobos
Publisher: Springer
ISBN: 3319461168
Category : Technology & Engineering
Languages : en
Pages : 543

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Book Description
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).

Author: Alberto Bull
Publisher: Santiago, Chile : United Nations, Economic Commission for Latin America and the Caribbean
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 202

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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309082951
Category : Science
Languages : en
Pages : 449

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Book Description
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.

Author: Arun P. Elhance
Publisher: US Institute of Peace Press
ISBN: 9781878379917
Category : Business & Economics
Languages : en
Pages : 340

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Book Description
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.

Author: Wim Salomons
Publisher: Springer Science & Business Media
ISBN: 3642601030
Category : Science
Languages : en
Pages : 393

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Book Description
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.

Author: Pamela Brunskill
Publisher: Triangle Interactive, Inc.
ISBN: 1684523656
Category : Juvenile Nonfiction
Languages : es
Pages :

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Book Description
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!

Author: Juan A. Morales
Publisher: Springer
ISBN: 3319931695
Category : Science
Languages : en
Pages : 809

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Book Description
This monograph presents the state of art of the geologic knowledge about the Spanish coast obtained through scientific research in the last 30 years.From a general point of view, coasts are the most quickly changing systems of the Earth. This is critical, since many human resources, such as the main part of economic and social activities, are located in the coastal areas. Especially in the case of Spain these coasts include cities, wide industrial areas (including harbor complexes), important ecologic systems, and our main economic resource: tourism. Understanding the dynamic functioning of each element of this coast is vital for correct future coastal management, so as to solve problems derived from bad plans developed in the last decades of the twentieth century. This is a valuable text for advanced graduate students and coastal researchers, which connects the specific dynamic functioning of the main Spanish coastal environments and their relationships with human activities.