Résultats de la recherche
Showing items 1 through 9 of 78.
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Library Resource
Égypte, Soudan, Kenya, République-Unie de Tanzanie, Afrique australe, Afrique du Sud, Nigéria, Mexique, Brésil, Colombie, Équateur, Pérou, États-Unis d'Amérique, Japon, Philippines, Iran, Népal
Agriculture influences and shapes the world’s ecosystems, but not always in a positive way. More than 2.5 billion people are globally involved as stewards of land and water ecosystems that constitute the natural resource base for feeding the current and future world population. Yet, conventional agronomic interventions based on ‘hard’ agricultural engineering compromise various eco-services that are required for sustainable agricultural development.
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Library Resource
Publication évaluée par des pairs
In Northern Africa region, land administration and land management systems are characterized by the existence of various institutions and a diversity of land tenures. In order to meet the requirements of the new era, a series of emerging policies has been developed and implemented according to the national needs and to the international regulations. In terms of historical events, we distinguish in the Northern Africa three different groups’ state members: (1) Sudan and Egypt, and (2) Tunisia and Morocco, (3) Algeria and Mauritania.
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Library Resource
Tunisie, Afrique septentrionale
Thorough analysis of present Tunisian law texts related to rangelands
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Library Resource
Documents et rapports de conférence
Tunisie, Afrique septentrionale
Rangelands in north Africa and the near east in general provide numerous goods and services that have great economic, social, cultural, and biological values. For centuries, inhabitants of rangelands have engineered pastoral and farming systems that have sustained their livelihoods in these harsh and dry environments. Unfortunately, these rangelands have undergone profound socio-economic changes where traditional grazing systems (transhumance and nomadism) which had historically allowed for grazing deferment were abandoned.
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Library Resource
Tunisie, Afrique septentrionale
The aim of the project was to develop and implement a web-based GIS tool for defining sustainable
land management (SLM) options by social-ecological context at global scale. This Global Geoinformatics Options by Context (GeOC) tool aims to support the implementation of SLM practices
by the international community. The GeOC is designed to provide stakeholders/projects and
programmes with plausible, robust extrapolation domains for guiding decisions on SLM options,
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Library Resource
Tunisie, Afrique septentrionale
The aim of the project was to develop and implement a web-based GIS tool for defining sustainable
land management (SLM) options by social-ecological context at global scale. This Global Geoinformatics Options by Context (GeOC) tool aims to support the implementation of SLM practices
by the international community. The GeOC is designed to provide stakeholders/projects and
programmes with plausible, robust extrapolation domains for guiding decisions on SLM options,
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Library Resource
Documents de politique et mémoires
Tunisie, Afrique septentrionale
In response to the severe economic, social, and environmental costs of degradation across Tunisia’s rangelands, the International Center for Agricultural Research in the Dry Areas (ICARDA) has worked with the General Directorate of Forestry (Direction Générale des Forêts, DGF) to draw up a new pastoral code. This code could facilitate a more sustainable governance regime that also delivers for pastoral communities. Inclusive and practical, the code also offers a framework for other countries experiencing degradation in rangeland areas.
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Library Resource
Maroc, Afrique septentrionale
This research activity titled “ROOT-ZONE SOC AND TN AS AFFECTED BY DW GENOTYPE AND MANAGEMENT, AND SILICON EFFECTS ON DROUGHT TOLERANCE OF BW GENOTYPES” was funded as part of the Project titled “Sustainability and Operationalization of Established Regional Agricultural Research Centers in Five Arab Countries”, granted by the Arab Fund for Economic & Social Development (AFESD) and implemented by ICARDA.
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Library Resource
Afrique septentrionale, Tunisie
Soil erosion is a natural process causing serious land degradation problems. In Tunisia, soil
erosion represents a serious environmental problem. The Rmel watershed located in the
Governorate of Zaghouan in north-eastern Tunisia and covering an area of 679 square
kilometers, suffers from this problem. It was thus selected to estimate annual soil loss using the
Revised Universal Soil Loss Equation (RUSLE), and geographic information system (GIS).
RUSLE model’s parameters (R, K, LS, C, and P) were derived from digital elevation model
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Library Resource
Documents de politique et mémoires
Afrique septentrionale, Tunisie
Stipagrostis pungens is a perennial grass species which belongs to the Poaceae family. It is usually found with several erect culms, grows up to 1.5 m in height, and forms substantial tufts. It is a tall stiff glabrous grass with pungent leaves, and a C4 grass with sclerophyllous, spine-tipped, inrolled leaves, with sunken stomata. The root system extends laterally for a radius of 20 m or more. The roots are covered throughout their length by a sandy sheath, which is penetrated by the root hairs that occur throughout the entire length of the sheath.
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