Résultats de la recherche
Showing items 1 through 9 of 130.-
Library ResourceRapports et recherchesdécembre, 2000
-
Library ResourceArticles et Livresdécembre, 2000Nigéria, Afrique, Afrique occidentale
The importance of cassava relative to other crops in the cropping system was almost total; cassava was present in 70% of arable fields; maize and beans or peas were each present in 13% of arable fields and all other crops were present in 4%. Cassava was produced mostly for sale, yet it was not as important around market centers as in remote areas because imported rice and wheat products were easily accessible.
-
Library ResourceDocuments et rapports de conférencedécembre, 2000Cameroun, Afrique, Afrique centrale
In sub-Saharan Africa, intensification of agriculture and rational use of arable land are essential for long-term growth (Gros, 1979, Johnston, 1990, Oluf et al., 990). Extensive cultivation methods and the population explosion are pushing the limits of cultivated land every day; deforestation accelerates; the productive capacity of the land is reduced
-
Library ResourceArticles et Livresdécembre, 2000
-
Library ResourceArticles et Livresdécembre, 2000Sri Lanka, Asia du sud-est
-
Library ResourceArticles et Livresdécembre, 2000Mexique, Amérique centrale
-
Library ResourceRapports et recherchesdécembre, 2000Mexique, Amérique centrale
From a river-basin perspective, wastewater irrigation is an important form of water and nutrient reuse; however, there are important water quality, environmental, and public health considerations. This report explores the advantages and risks of urban wastewater reuse for crop production in the water-short Guanajuato river-basin in west-central Mexico, and then by a selective literature review demonstrates how common this practice is worldwide.
-
Library ResourceRapports et recherchesdécembre, 2000Turquie
Public domain datasets are freely available on the Internet are easy to obtain, and often more up-to-date than those from local sources. This simplifies the modeling process and increases the ability to model basins anywhere in the world, from anywhere with Internet access. Although not all types of data are available, and some conversions may be needed, the information provided does allow for quick and easy simulations of basins. The Semi-Distributed Land-Use Runoff Process (SLURP) hydrological model has been designed to take advantage of such data sources.
-
Library ResourceRapports et recherchesdécembre, 2000
The use of participatory tools and methods has increased dramatically in
natural resource management (NRM) over the past decade, largely because of
the recognition that sustainable NRM cannot be achieved without involving the
individuals and communities who make decisions about how resources are
used. Participation of resource users and other stakeholders is important not
only in the management of resources, but also in research oriented toward the
generation of information and innovations that shape how resources are
-
Library ResourceArticles et Livresdécembre, 2000Colombie
Rechercher dans la bibliothèque foncière
Grâce à notre moteur de recherche robuste, vous pouvez rechercher n'importe quel document parmi les plus de 64 800 ressources hautement conservées dans la bibliothèque du foncier.
Si vous souhaitez avoir un aperçu de ce qui est possible, n'hésitez pas à consulter le guide de recherche.