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Registros recuperados: 33 | |
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Sauer, Timm; Havlik, Petr; Schneider, Uwe A.; Kindermann, Georg E.; Obersteiner, Michael. |
Fertile land and fresh water constitute two of the most fundamental resources for food production. These resources are affected by environmental, political, economic, and technical developments. Regional impacts may transmit to the world through increased trade. With a global forest and agricultural sector model, we quantify the impacts of increased demand for food due to population growth and economic development on potential land and water use. In particular, we investigate producer adaptation regarding crop and irrigation choice, agricultural market adjustments, and changes in the values of land and water. |
Tipo: Conference Paper or Presentation |
Palavras-chave: Irrigation; Food supply; Integrated assessment; Water use intensity; Agricultural adaptation; Land scarcity; Partial equilibrium model; Resource /Energy Economics and Policy. |
Ano: 2008 |
URL: http://purl.umn.edu/44271 |
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Streck,Nereu Augusto. |
The amount of carbon dioxide (CO2) of the Earth´s atmosphere is increasing, which has the potential of increasing greenhouse effect and air temperature in the future. Plants respond to environment CO2 and temperature. Therefore, climate change may affect agriculture. The purpose of this paper was to review the literature about the impact of a possible increase in atmospheric CO2 concentration and temperature on crop growth, development, and yield. Increasing CO2 concentration increases crop yield once the substrate for photosynthesis and the gradient of CO2 concentration between atmosphere and leaf increase. C3 plants will benefit more than C4 plants at elevated CO2. However, if global warming will take place, an increase in temperature may offset the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Global warming; Photosynthesis; Agriculture; Food supply. |
Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782005000300041 |
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von Braun, Joachim; de Haen, Hartwig; Blanken, Juergen. |
Rapid population growth in agroecologies that are already under high population pressure poses a major challenge for development policy. It becomes an even greater challenge in complex agroecologies where little new technology for rapid agricultural expansion is available. The mountain zones of the Zaire-Nile Divide in Central Africa present an example of such a challenging environment where agriculture has encroached onto marginal zones, that is, water catchment areas and the last tropical forests of the area. This study by von Braun, de Haen, and Blanken highlights the potentials of agricultural development for the employment, income, and consumption of the poor, but also stresses that nonagricultural rural growth and employment expansion are key to... |
Tipo: Report |
Palavras-chave: Agriculture and State; Rwanda; Produce trade; Government policy; Exports; Food supply; Nutrition policy; Population; Food Consumption/Nutrition/Food Safety; International Development. |
Ano: 1991 |
URL: http://purl.umn.edu/42154 |
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Webb, Patrick; von Braun, Joachim; Yohannes, Yisehac. |
This study argues that famines are preventable. What was once a universal threat to human life is now primarily in Sub-Saharan Africa. Africa is likely to be the only continent to experience a continued high level of famine mortality during the 1990s, as well as an increase in absolute poverty. Therefore, the current challenge facing policymakers and research organizations such as IFPRI is to reduce the negative effects of famine in Africa and to lay the foundations for its longer- term eradication. This research by Patrick Webb, Joachim von Braum, and Yisehac Yohannes was designed to contribute to a better understanding of the root causes of famine and thereby to identify appropriate policies and projects for famine mitigation. As part of a larger IFPRI... |
Tipo: Report |
Palavras-chave: Famines; Ethiopia; Droughts; Government policy; Food supply; Agricultural and Food Policy. |
Ano: 1992 |
URL: http://purl.umn.edu/37973 |
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Smith, Lisa C.; Alderman, Harold; Aduayom, Dede. |
Reducing food insecurity in the developing world continues to be a major public policy challenge, and one that is complicated by lack of information on the location, severity, and causes of food insecurity. Such information is needed to properly target assistance, evaluate whether progress is achieved, and develop appropriate interventions to help those in need. This research report explores a new method of measuring food insecurity using food data collected as part of household expenditure surveys. Such surveys are routinely undertaken by numerous national governments throughout the developing world, but in the past the resulting food data remained largely unexploited for the purposes of measuring food insecurity. Using data from 12 Sub-Saharan African... |
Tipo: Report |
Palavras-chave: Food supply; Africa; Sub-Saharan; Food Security and Poverty. |
Ano: 2006 |
URL: http://purl.umn.edu/37885 |
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Simatupang, Pantjar; Fleming, Euan M.. |
This proceedings is a record of a regional workshop on "Food Security in the Southwest Pacific Island Countries", convened to discuss the findings and strategies achieved in a two-year research project "Food Security Strategies for Selected South Pacific Island Countries". The national experts of the participating countries: Fiji, Papua New Guinea, Tonga and Vanuatu, presented reports of their country studies and the commentators from each country provided additional information. |
Tipo: Report |
Palavras-chave: Food supply; Food security; Food Security and Poverty. |
Ano: 2001 |
URL: http://purl.umn.edu/32711 |
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Ahmed, Raisuddin. |
Conflict between the short run welfare of poor consumers and agricultural production incentives creates some of the most difficult policy issues facing developing countries. Resulting policy option constraints are particularly severe in very low income countries. The conflict may on the one hand impede the growth in al production essential to improve long term welfare of low income consumers, and on the other hand restrain policies to increase consumption, which in the long run is essential to the success of the measures taken to increase production. The widely observed phenomenon of urban bias in food price policy is itself a product of the nature of low income societies and of this complex conflict. This research by Raisuddin Ahmed delineates and... |
Tipo: Report |
Palavras-chave: Food supply; Bangladesh; Rice; Marketing; Prices; Agricultural and Food Policy; Crop Production/Industries. |
Ano: 1979 |
URL: http://purl.umn.edu/42223 |
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von Braun, Joachim; Diaz-Bonilla, Eugenio. |
The economic impact of globalization, particularly on poverty, and the changes in agri-food markets have received much attention in recent years. However, the intersection of these two trends has been neglected. The present volume fills this gap by focusing on the way globalization of agri-food systems affects the world’s poor and its impact on food and nutrition security in developing countries. Rather than offering a single policy prescription or simplistic messages about globalization being 'good' or 'bad', the book acknowledges the complexity of the subject by including a variety of policy and research perspectives. The contributors analyse in details the links between poverty and globalization. They examine the different interactions between the... |
Tipo: Report |
Palavras-chave: Food supply; Developing countries; Rural poor Globalization; Food Security and Poverty. |
Ano: 2008 |
URL: http://purl.umn.edu/46012 |
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Benson, Todd. |
Undernutrition has, fortunately, risen on the policy agenda in Africa in recent years. In 2004, an international IFPRI 2020 conference held in Kampala on food and nutrition security in Africa drew attention to the issue, and high-level policymakers noted the problem and the need for action much more than they had before. Still, undernutrition remains a fundamental challenge to achieving improved human welfare and economic growth in Sub- Saharan Africa. To address that challenge, national governments must undertake appropriate policies and actions. Politically, however, a high prevalence of undernutrition is not seen as anomalous and indicative of the inability of governments to fulfill their duties to their citizens. This report examines the findings from... |
Tipo: Report |
Palavras-chave: Nutrition policy; Africa Sub-Saharan; Food supply; Food Consumption/Nutrition/Food Safety; International Development. |
Ano: 2008 |
URL: http://purl.umn.edu/37875 |
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von Braun, Joachim; Puetz, Detlev; Webb, Patrick. |
With its focus in irrigation technology and commercialization of rice in West Africa, this study addresses the question of how agricultural growth in Sub-Saharan Africa may improve food security. Over the last few decades in Africa, rice has ranked second after maize among cereal that have contributed to the overall growth of cereal output. In West Africa, rice imports have grown rapidly during the last two decades. Future decisions on irrigation investments and technology choices will be critical importance in view of numerous past failures and excessive costs of irrigation in Sub-Saharan Africa. This research by Joachim Von Braun, Detlev Puetz, and Patrick Webb is to be seen against the backdrop of policy priorities resulting from the earlier work of... |
Tipo: Report |
Palavras-chave: Rice trade; Gambia; Irrigation; Economic aspects; Food supply; Income; Crop Production/Industries; Food Consumption/Nutrition/Food Safety. |
Ano: 1989 |
URL: http://purl.umn.edu/42167 |
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Blanchet, Aline; Dubois, Stanislas; Hily, Christian; Rochette, Sebastien; Le Goaster, Edouard; Guillou, Monique. |
Mixed beds of Ophiocomina nigra and Ophiothrix fragilis (Echinodermata, Ophiuroidea) are usually predominated by O. fragilis and are reported to be stable over time. The Bay of Brest (Brittany, France) is a highly productive ecosystem where both species co-occur in the main central part. Using a geostatistical approach, we tested for changes in O. nigra and O. fragilis density and total biomass patterns between 1987 and 2011. Our results highlighted an increase in O. nigra population size and the induction of a spatial shift of the co-occurring O. fragilis. O. nigra increased similar to 5 times in density and covered almost all the study area, while its density-dependent biomass increased similar to 3 times (22 t km(-2), ash-free dry mass) between 1987 and... |
Tipo: Text |
Palavras-chave: Echinoderm; Ophiocomina nigra; Ophiothrix fragilis; Food supply; Kriging method; Suspension-feeder. |
Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00090/20136/17782.pdf |
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Registros recuperados: 33 | |
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