Biodiversity in rangelands is decreasing, due to intense utilization
for livestock production and conversion of rangeland into cropland;
yet the outlook of rangeland biodiversity has not been
considered in view of future global demand for food. Here we
assess the impact of future livestock production on the global
rangelands area and their biodiversity. First we formalized existing
knowledge about livestock grazing impacts on biodiversity,
expressed in mean species abundance (MSA) of the original
Résultats de la recherche
Showing items 1 through 9 of 17.-
Library ResourceArticles et Livresdécembre, 2013Kenya, États-Unis d'Amérique, Afrique orientale, Amérique septentrionale
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Library ResourceMatériels institutionnels et promotionnelsavril, 2013Égypte, Iraq, Jordanie, Liban, Palestine, République arabe syrienne, Yémen, Afrique septentrionale, Asie occidentale
The goal of WLI is to improve the livelihoods of rural
households and communities in areas where water
scarcity, land degradation, water quality deterioration,
food security and health problems are prevalent in eight
participating countries including Egypt, Iraq, Jordan,
Lebanon, Palestine, Syria, Tunisia, and Yemen. The main
objective is to develop and pilot test integrated water and
land management strategies. -
Library ResourceArticles et Livresseptembre, 2013Chine, Asie orientale
Implementation of land management policies influences land use and hence
causes environmental change. Taking the Ordos rangelands in China as a case
study, this paper explores the potential of remote sensing to assess in dryland
areas the impacts of policies on the environment. Thirteen Landsat images of the
period 1978 2010 were acquired and those corresponding to the starting dates of
implementation of different policies were selected for land-cover change analysis;
others were used to check the detected change and track the normalized -
Library ResourceManuels et directivesnovembre, 2013Global
This laboratory manual of analytical methods has been compiled to be used primarily by research
assistants, technicians and student trainees working in the laboratory. The methods have been
selected from different sources and adapted for routine analyses in the WANA region. A detailed
description of the methods can be found in the original publications listed in the references. As
analytical techniques are developed and improving, this manual will be subject to continuous
revision. Any helpful suggestion and feedback from users is most appreciated. -
Library ResourceDocuments de politique et mémoiresmars, 2013Afrique septentrionale, Tunisie
This brief is intended to inform government decision makers, agencies and specialist groups involved in rural development and revenue generation activities for communities and women
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Library ResourceMatériels institutionnels et promotionnelsjanvier, 2014Afrique orientale, Éthiopie
Brochure on "Community based Rainfed Watershed Management" project. A collective research, learning & demonstration project for increasing productivity and adapting smallholder farmers to climate change in rainfed dry areas.
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Library ResourceMatériels institutionnels et promotionnelsseptembre, 2013Afrique orientale, Éthiopie
Ethiopia has great agricultural potential as it has vast area of fertile land, diverse climate, sufficient annual rainfall, & abundant labor force. However, the current performance of agric. is far below the potential, partly due to soil erosion & land degradation, lack of using improved technologies, lack of supportive services, poor socioeconomic infrastructure, & many more interrelated socioeconomic factors. Consequently, food insecurity & poverty have remained common features in the rural community.
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Library ResourceDocuments et rapports de conférencejuillet, 2013Asie occidentale, Jordanie
Water scarcity and land degradation are widespread problems that affect agricultural productivity, food security and environmental quality in several parts of the world, particularly in the dry areas. Sustainable management of soil and water is necessary to optimize the use of limited rainwater for crop production and to decrease soil erosion. One management option is utilizing rainfall more efficiently through water harvesting. In arid areas, different types of water harvesting techniques (WHT) are being developed by
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Library ResourceArticles et Livresnovembre, 2013Asie méridionale, Inde
Drylands are characterized by physical water scarcity, often associated with land degradation and
desertifi cation. Other factors that contribute to these problems include high population densities,
unwise agricultural practices and overgrazing. However, while desert ecosystems are fragile and
vulnerable and can collapse in the short term, given the right conditions and protection, these
areas also have a great potential for recovery. Examples of the recovery of areas have led to the -
Library ResourceRapports et recherchesfévrier, 2013Iran, Asie méridionale
This report on ‘Assessment and Improvement of Wheat and Maize Water Productivity in Lower Karkheh River Basin’ helps researchers and scientists interested in sustainable water development to improve the Water Productivity (WP) of wheat and maize in irrigated lands of the Karkheh dam downstream.
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