Saline and Alkaline Soils in Latin America: Natural Resources, Management and Productive Alternatives, Taleisnik Edith, Lavado Raъl S.
Автор: Sanjay Sawant Название: Nature, Properties and Management of Saline and Alkali Soils ISBN: 1681170809 ISBN-13(EAN): 9781681170800 Издательство: Gazelle Book Services Рейтинг: Цена: 230210.00 T Наличие на складе: Невозможна поставка. Описание: There is a great variety in their physical, chemical and biological properties, but they can be made to yield a good crop by adopting proper management practices and soil and water conservation measures, applying organic manures and chemical fertilizers and supplementing monsoon rain with irrigation water. But there are some extreme soil conditions which do not provide a suitable medium for the growth of plants and desirable microorganisms. Such soils are either too acidic or alkaline and special measures have to be adopted to bring them in proper condition before any crop can be raised on them satisfactory and economically. In high rainfall areas, acidic soils are formed due to leaching of bases or salts. In arid regions where rainfall is low and temperature high, soils become saline or alkaline due to alkaline due to accumulation of salts in the surface soil. Micro-organisms decompose organic matter in the soil and organic acids are continuously being formed. If these acids are not neutralized by free lime or bases to make the soil acidic.
Автор: Sarah T Romano Название: Transforming Rural Water Governance: The Road from Resource Management to Political Activism in Nicaragua ISBN: 0816538077 ISBN-13(EAN): 9780816538072 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 66530.00 T Наличие на складе: Невозможна поставка. Описание: The most acute water crises occur in everyday contexts in impoverished rural and urban areas across the Global South. While they rarely make headlines, these crises, characterized by inequitable access to sufficient and clean water, affect over one billion people globally. What is less known, though, is that millions of these same global citizens are at the forefront of responding to the challenges of water privatization, climate change, deforestation, mega-­hydraulic projects, and other threats to accessing water as a critical resource. In Transforming Rural Water Governance Sarah T. Romano explains the bottom-up development and political impact of community-based water and sanitation committees (CAPS) in Nicaragua. Romano traces the evolution of CAPS from rural resource management associations into a national political force through grassroots organizing and strategic alliances. Resource management and service provision is inherently political: charging residents fees for service, determining rules for household water shutoffs and reconnections, and negotiating access to water sources with local property owners constitute just a few of the highly political endeavors resource management associations like CAPS undertake as part of their day-to-day work in their communities. Yet, for decades in Nicaragua, this local work did not reflect political activism. In the mid-2000s CAPS' collective push for social change propelled them onto a national stage and into new roles as they demanded recognition from the government. Romano argues that the transformation of Nicaragua's CAPS into political actors is a promising example of the pursuit of sustainable and equitable water governance, particularly in Latin America. Transforming Rural Water Governance demonstrates that when activism informs public policy processes, the outcome is more inclusive governance and the potential for greater social and environmental justice.
Автор: E. Bresler; B. L. McNeal; D. L. Carter Название: Saline and Sodic Soils ISBN: 3642683266 ISBN-13(EAN): 9783642683268 Издательство: Springer Рейтинг: Цена: 121890.00 T Наличие на складе: Есть у поставщика Поставка под заказ.
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