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Soils of the arid zones of Chile










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    Aquaculture in desert and arid lands: development constraints and opportunities. FAO Technical Workshop. 6-9 July 2010, Hermosillo, Mexico 2011
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    Aquaculture in desert and arid lands has been growing steadily over the last decade thanks to the modern technologies and alternative energy sources that have allowed water in these places of extremes to be exploited more effectively and more efficiently, using it for both crop irrigation and production of fish. This publication presents the evolution of desert and arid lands aquaculture in the past few decades in seven countries and regions (Australia, Egypt, Israel, Mexico, Southern Africa, the United States of America and Central Asia) describing the achievements of a number of farming operations, which demonstrate the significant potential for farming commercial aquatic organisms using geothermal, fresh and brackish waters. The global overview on desert aquaculture development shows, through the use of maps and tables, those countries with vast extensions of arid territories that should be better investigated for potential aquaculture development. Limiting f actors were extensively discussed during the workshop, and several measures were identified and proposed. Desert conditions are characterized by high day temperatures, cold winter nights, high solar radiation, scarce precipitation and very low relative humidity. The experts reached consensus on the definition of aquaculture in the desert and arid lands, which was defined as follows: “Aquaculture activities practised in desert and arid lands characterized by low precipitation (<250 mm/y ear), high solar radiation, high rate of evaporation, using subsurface and surface water”. At the end of the workshop, a series of recommendations were elaborated by the experts to assist FAO Member countries wishing to generate a favourable national environment to promote sustainable aquaculture development. Limited water supply remains the single largest constraint for aquaculture development in arid and semi-arid regions; however, where the resource is available, the development of integrated aqua-agriculture systems may certainly provide economic output opportunities from such resource-limited regions. Such farming systems may also enable the production of highly priced fish, vegetables and fruits all year round.
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    Adaptation to Climate-Change in Semi-Arid Environments - Experience and Lessons from Mozambique 2012
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    Southern Africa is one of the regions highly vulnerable to the impacts of climate change. Mozambique is one of the least developing countries in the region experiencing this devastating effect on the agricultural livelihood of its rural population. Climate change will have a significant impact on the Limpopo River Basin and its tributaries which flow across the vast areas of the semi-arid plateau of the southern provinces of Mozambique where the United Nations Joint Programme (UNJP) on Environme ntal Mainstreaming and Adaptation to Climate Change is operating. This publication documents the experiences, successes and challenges being faced in implementing the adaptation interventions in one of the remote districts where very few development agencies are operating. It identifies, at farm and community level, adaptive interventions that have been tested and applied and which have shown positive impact on productivity, broadened livelihoods basis, and improved resilience to climate change in the face of current and future climate-related stresses.
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    The Islamic Republic of Afghanistan soil atlas
    Volume 1: Maps derived from soil survey of twenty-six districts of nine provinces
    2020
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    The Afghanistan Soil Information System (AfSIS) project, funded by FAO core budget, has completed soil surveys, analyzed soil samples, and mapped soil in nine provinces of Afghanistan. This Afghanistan Soil Atlas is the culmination of this work. This Atlas details soil properties, soil types, key nutrients in soil, and threats to agriculture from degraded soil in nine provinces, as well as selected national soil maps. This Atlas will help policymakers and land users better plan crop plantations, target irrigation designs, and create better climate change mitigation, and natural resource management strategies. The project data and methodology was comprised of field soil profile studies, laboratory soil analyses, and geo-data information. Soil profile site selection considered natural factors influencing soil formation, total land area, and available financial resources. The locations of soil profile sites were preloaded into GPS-enabled mobile or tablet application in order to guide the surveyors to the exact point in the field. During fieldwork, the selected soil profiles including 2-3 soil surface samples were studied according to the FAO Soil Profile description standards. Soil laboratory analysis methods were mostly those, which are favorable for arid and semi-arid region. The new national soil maps created from this data are on 1:200,000 scale, while provincial-level maps are on 1:50,000 scale.

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