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Book (stand-alone)Harmonized World Soil Database Version 1.1 2009
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No results found.The completion of this comprehensive harmonized soil information database will improve estimation of current and future land potential productivity, help identify land and water limitations, and enhance assessing risks of land degradation, particularly soil erosion. The HWSD contributes sound scientific knowledge for planning sustainable expansion of agricultural production and for guiding policies to address emerging land competition issues concerning food production, bio-energy demand and thre ats to biodiversity. This is of critical importance for rational natural resource management and in making progress towards achieving Millennium Development goals of eradicating hunger and poverty and addressing the food security and sustainable agricultural development, especially with regard to the threats of global climate change and the needs for adaptation and mitigation. This digitized and online accessible soil information system will allow policy makers, planners and experts to over come some of the shortfalls of data availability to address the old challenges of food production and food security and plan for new challenges of climate change and accelerated natural resources degradation. -
Book (stand-alone)Harmonized World Soil Database version 2.0 2023
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No results found.The Harmonized World Soil Database version 2.0 (HWSD v2.0) is a unique global soil inventory providing information on the morphological, chemical and physical properties of soils at approximately 1 km resolution. Its main objective is to be useful for modelers and to serve as a basis for prospective studies on agroecological zoning, food security and the impacts of climate change. HWSD v2.0 also serves an educational function, illustrating the geographical distribution of soils as well as their properties globally. HWSD v2.0 is easily accessible and user-friendly. -
ProjectSoil Survey and Land Classification, Republic of Yemen. Land suitability for irrigated sorghum (Seifi) in Wadi Mawr (Tihama).
Technical Note 8.
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No results found.The purpose of this evaluation is to determine the land suitability of the Wadi Mawr area for the cultivation of (spate) irrigated sorghum under improved traditional management, and to determine the yield response to additional water gifts on various soil types. The evaluation was carried out for the alluvial plain, i.e. hills, dunes and wadi beds were excluded, and takes into account the following soil qualities and characteristics: drainage, salinity of the rootzone, surface sealing and the oc currence of crusts, effective soil depth and the available water holding capacity of the rootzone.
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