خيارات البحث
النتائج 1 - 10 من 5,572
Disaster relief | Emergency food and water النص الكامل
2008
Fountain, Brent Jonathan | Callahan, Julia
Global change | Impacts on water and food security
2010
Ringler, Claudia | Biswas, Asit K. | Cline, Sarah A.
This volume examines the various drivers of global change, including climate change, and the use of agricultural knowledge, science, and technology, as well as the outcomes of global change processes, including impacts on water quality and human well-being.
اظهر المزيد [+] اقل [-]La experiencia del proyecto alimentacion de agua para pueblos jovenes (APPJ) : servicios de agua en zonas periurbanas de Lima Metropolitana النص الكامل
de Walque, Damien | Verwimp, Philip
This document is the first systematic discussion of the most important lessons of the APPJ Project of the European Union, which was implemented between the years 1993 and 2001. The project was prepared to respond to the emergency health situation of the cholera epidemic of 1991. The proposed project was to comment on building autonomous systems of drinking water in peri-urban areas not served by the SEDAPAL drinking water network. Lessons learned include: 1) It is not enough to build drinking water systems; 2) It is essential to ensure the existence of units that manage the system efficiently. 3) It is important to operate a monitoring program of the autonomous systems in Lima. This document has been divided into five chapters and three annexes. The first chapter presents the background of the project, the features of the proposal and phases their execution. The second deals with processes that led to major improvements in the construction of the autonomous systems of drinking water. The third chapter discusses the various aspects and factors influencing the sustainability of water systems. The fourth chapter discusses the role of institutional actors involved directly or indirectly in the sustainability of building water systems. Finally, the fifth chapter presents conclusions and lessons. The document ends with three annexes: the first is information on costs and volume of sales of systems visited; the second is a summary of the information status of systems visited, and the third is a list of NGOs who have participated in the implementation of the project.
اظهر المزيد [+] اقل [-]Proceedings of the 3rd Seminar on Food-borne Parasitic Zoonoses | Food- and water-borne parasitic zoonoses in the 21st century
2001
Waikagul, Jitra | Cross, John H. | Supavej, Suvanee
The impacts | Management systems evaluation areas integrated research and education for clean water | Clean water, abundant food, and a healthy environment
1996
Food and water intake microinjection of fenitrothion into the hypothalamus [Alimento; Agua; Degluticao].
1977
Saad W.A. | Porto M. | Saad W.A. | Yashuda Y. | Camargo L.A.A.
Water for Food for a world without hunger (FAOWATER)
2012
Instrumentation in food, water, and wastewater industries
1980
Aigua i producció d’aliments. Per què els cultius necessiten aigua? | Water and food production. Why crops need water? | Agua y producción de alimentos. ¿Por qué los cultivos necesitan agua? النص الكامل
2021
Girona, Joan | Villar, Josep M.
Aquest article explica el paper de l’aigua en el comportament general de les plantes i, en concret, la seva rellevància en l’agricultura, amb l’objectiu que els lectors, no especialitzats en aspectes fisiològics, entenguin la importància del recurs de l’aigua en la producció d’aliments i béns. Per a fer-ho, s’analitzen els conceptes més rellevants que governen el funcionament de l’aigua a la planta i la relació amb els processos més lligats a la producció (fotosíntesi i creixement vegetatiu). Per a il·lustrar aquests conceptes es presenten alguns exemples agronòmics relacionats amb la sensibilitat estacional al dèficit hídric, l’eficiència en l’ús de l’aigua o la dependència de la producció d’aliments a la disponibilitat d’aigua.PARAULES CLAU: aigua, producció d’aliments, fisiologia vegetal, potencial hídric, fotosíntesi, transpiració, sensibilitat estacional al dèficit hídric. | This paper explains the role of water in the general behaviour of plants and more specifically its importance in agriculture, with the aim to let the reader who is not specialized in physiological aspects understand the function of water in the production of food and goods. To do this, the most significant concepts regulating the behaviour of water inside the plant have been analysed, together with the relationship of water with the processes most closely linked to production (photosynthesis and vegetative growth). Likewise, to illustrate these concepts, some agronomic examples are given in relation to seasonal sensitivity to water deficit, water use efficiency, and the dependence of food production on water availability.KEYWORDS: water, food production, plant physiology, water potential, photosynthesis, transpiration, seasonal sensitivity to water deficit. | Este artículo explica el papel del agua en el comportamiento general de las plantas y, en concreto, su relevancia en la agricultura, con el objetivo de que los lectores, no especializados en aspectos fisiológicos, puedan entender la importancia del recurso del agua en la producción de alimentos y bienes. Para ello, se han analizado los conceptos más destacados que gobiernan el funcionamiento del agua en la planta y su relación con los procesos más vinculados a la producción (fotosíntesis y crecimiento vegetativo). Para ilustrar estos conceptos se presentan algunos ejemplos agronómicos relacionados con la sensibilidad estacional al déficit hídrico, la eficiencia en el uso del agua o la dependencia de la producción de alimentos a la disponibilidad de agua.PALABRAS CLAVE: agua, producción de alimentos, fisiología vegetal, potencial hídrico, fotosíntesis, transpiración, sensibilidad estacional al déficit hídrico.
اظهر المزيد [+] اقل [-]Towards a water and food secure future: critical perspectives for policy-makers النص الكامل
2016
The aim of this paper is to provide policy-makers with a helpful overview of the technical and economic aspects of water use in agriculture, with particular emphasis on crop and livestock production. Through 2050, in many countries, agriculture will remain an important determinant of economic growth, poverty reduction, and food security, even as, over time, the proportion of agricultural revenue in national gross income declines. Water use in agriculture will remain substantial, irrigated areas will expand and competition for water will increase in all sectors. Most likely, overall supplies of land and water will be sufficient to achieve global food production goals in 2050; although poverty and food insecurity will remain pressing challenges in several regions and countries. Thus, the focus of this report is on the regional and national aspects of food security.
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