Soil erosion is considered to be one of the greatest environmental problems of sub-Saharan Africa. This paper investigates the advantages and disadvantages of modelling soil erosion at the continental scale and suggests an operational methodology for mapping and quantifying 10-daily water runoff and soil erosion over this scale using remote sensing data in a geographical information system framework.
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Showing items 1 through 9 of 694.-
Library ResourceJournal Articles & BooksDecember, 2010Africa
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Library ResourcePolicy Papers & BriefsFebruary, 2010
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Library ResourceReports & ResearchDecember, 2010
Land is a natural resource that is valued for many reasons. Farmers utilize land to earn their livelihood and as a store of wealth for future retirement. Potential rural residents have increasingly sought open space for a home site and pursuit of a lifestyle. Developers seek financial opportunities to invest in and develop it for non-farm uses. Recreational needs such as hunting are often met through use of land. For some, land is viewed as an investment and a hedge against inflation.
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Library ResourcePolicy Papers & BriefsJuly, 2010Nicaragua
El programa TERRENA (TERritorio Y REcursos NAturales), que Ingeniería Sin Fronteras desarrolla en la cuenca alta de Río Viejo (Nicaragua), tiene como objetivo reducir la vulnerabilidad en las áreas rurales empobrecidas, mediante la gestión integral y sostenible de recursos hídricos y del territorio, incluyendo la prevención y mitigación de riesgos de desastres, todo ello con un enfoque de cuenca hidrográfica.
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Library ResourceJournal Articles & BooksDecember, 2010Spain
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Library ResourceConference Papers & ReportsAugust, 2010New Zealand
NPV and LEV are established and common approaches to valuing single rotation and infinite rotation forests respectively, when the rotation age is fixed in advanced. More recently, Real Options approaches have been employed to value single and infinite rotation forests with a flexible harvest age.
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Library ResourceJournal Articles & BooksDecember, 2010
Megkülönböztetve egymástól a KAP és a birtokpolitikára vonatkozó közösségi jogi rendelkezéseket, arra a következtetésre jutok, hogy túlzás, illetve nem helytálló Tanka Endre megállapítása, mely szerint az uniós jog a birtokpolitikában „maga a politika”, „a tagállami jogalkotás annak végrehajtására szűkül”, és a birtokpolitikában a közösségi jog „a belső jogot csaknem kiszorítja”, hiszen a tagállam dönthet úgy, hogy semmilyen korlátozást nem léptet életbe a földpiacon, valamint a közösségi joggal összeegyeztetett igen szigorú, Tanka Endre szavaival élve értékalapú birtokpolitikát, polgári de
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Library ResourceJournal Articles & BooksDecember, 2010Hungary
Földviszonyainkat 20 éve a nemzetek feletti tőkehasznosulás elsajátítási magánérdekét érvényesítő, neoliberális birtokpolitika uralja. Ez – rendszertani lényegéből eredően – maga alá gyűrte a földnek a társadalmi közösséget fenntartó és újratermelő közfunkcióit. Az új történelmi korszakban – amely a civilizáció összeomlásával is fenyeget – a föld és a víz, mint természeti őselemek birtoklása a túlélés feltétele.
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Library ResourceConference Papers & ReportsAugust, 2010
The voluntary policies being used by local authorities to deliver Resource Management Act outcomes are considered nonstatutory policy methods under the Act, which does not define them or describe how they might be selected and implemented. One economist has been able to list over 50 different economic methods. A similar list has not been available for policy agents interested in drawing upon the rich and extensive experience of people in other disciplines such as agricultural extension and social marketing.
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Library ResourceJournal Articles & BooksOctober, 2010South Africa, Africa, Southern Africa
A good indicator of successful farm redistribution cases has to be the continuation of viableproductivity rates in their post transfer periods. Continued productivity benefits all thestakeholders that are involved in the process. Unfortunately negative productivity levels havebeen reported in numerous South African land redistribution transfers in recent years.
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