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Economic valuation of water resources in agriculture

Journal Articles & Books
Novembro, 2004
Índia
Reino Unido
Irlanda
Itália

Agriculture is coming under more and more pressure to justify its use of the world's freshwater resources and to improve its productive and environmental performance. The allocations of raw water to agriculture (and the allocations within the agriculture sector) all need to be negotiated in a transparent way. This report reviews the large set of literature on the subject and makes the case for the adoption of a functional approach to water valuation as a basis for such negotiation.

Pérdida de carbono orgánico del suelo (COS)

Policy Papers & Briefs
Outubro, 2016

La parte delantera de la postal ofrece una breve descripción sobre la Pérdida de carbono orgánico del suelo - COS (definición, causa, hechos clave), mientras que la parte posterior muestra las condiciones y tendencias mundiales por región. Estos datos se derivan de la información publicada en el informe del Estado Mundial del Recurso Suelo, publicado en diciembre de 2015.

Organic recycling in Africa. Papers presented at the FAO/SIDA Workshop on the Use of Organic Materials as Fertilizers in Africa, Buea, Cameroon, 5-14 December 1977

Journal Articles & Books
Novembro, 1980
Benim
Nigéria
Zâmbia
Mali
Gana
Congo
Serra Leoa
Níger
Colômbia
Quênia
Libéria
Japão
Camarões
Chade
Senegal
Sudão
Togo
Costa do Marfim
África

Policy makers as well as scientists have started to acquire an honest appreciation of the possibilities of reducing the wastage of materials which could be profitably utilized for improving or maintaining soil productivity. In addition, the great opportunities offered by making more efficient use of the potentials of biological nitrogen fixation in farming systems are now fully recognized. A number of recommendations and suggested guidelines were made by the various Working Groups during the two-week Workshop.

Perspectivas mundiales del suministro futuro de madera procedente de plantaciones forestales

Journal Articles & Books
Novembro, 2000
Fiji
Bangladesh
Chile
Zimbabwe
China
Indonésia
Bulgária
Cuba
Malta
Venezuela
Costa Rica
Uruguai
Nova Zelândia
Ruanda
Austrália
Myanmar
Portugal
Argentina
Índia
Senegal

Un análisis del estado actual de las plantaciones forestales y las tendencias actuales de las mismas tanto a nivel global como a escala regional. Se examinan tanto los aspectos económicos, como los políticos relacionados al desarrollo de las plantaciones forestales. Luego se presentan las perspectivas de las plantaciones forestales a través de panoramas alternativos de acuerdo al futuro crecimiento de las áreas con plantaciones.

Guidelines and computer programs for the planning and design of land drainage systems

Journal Articles & Books
Novembro, 2007
Egito
Estados Unidos
Espanha
Iraque
Malásia
Usbequistão
Reino Unido
Peru
Irã
Argentina
Índia
Cazaquistão
Paquistão
México
Países Baixos

Drainage of agricultural land is one of the most critical water management tools for the sustainability of productive cropping systems, as frequently this sustainability is extremely dependent on the control of waterlogging and soil salinization in the rootzone of most crops. On some agricultural lands, the natural drainage is sufficient to maintain high productivity. However, many others require improvements in surface and subsurface drainage in order to optimize land productivity, while maintaining the quality of soil resources.