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Book (series)Technical studyEstimación del volumen forestal y predicción del rendimiento con referencia especial a los trópicos
Vol. 1 - estimación del volumen
1980 -
No Thumbnail AvailableDocumentOther documentRendimiento de pasturas con y sin sombra en el trópico húmedo de Costa Rica 1999
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No results found.El índice de sombra, las condiciones edafológicas y la composición florística del pastizal determinaron el rendimiento de las pasturas en 22 sitios silvopastoriles distribuidos entre dos localidades en Costa Rica. El rendimiento de pasturas no mejoradas bajo sombra de árboles frutales fue significativamente menor que a pleno sol. Pasturas mejoradas bajo sombra abierta de árboles maderables, como Cordia alliodora, produjeron igual que a pleno sol. -
Book (series)Technical reportEstimación de la idoneidad de los criterios de la CITES para las listas de especies acuáticas de explotación comercial. 2000En este documento se examinan las caractersticas de los organismos acuticos objeto de explotacin ante el peligro de que puedan llegar a extinguirse. Abarca un examen de casos de especies que se han extinguido o que corren un alto peligro de extincin, y de regiones que han sufrido prdidas de biodiversidad. Se estudian las propiedades de los ciclos vitales, los hbitat de las especies acuticas y las caractersticas de las pesqueras que las explotan. Para evaluar los peligros se analizan lo s criterios que emplean varios grupos de expertos. Se pone de relieve el contraste entre los criterios empleados para evaluar el peligro de las especies terrestres y los utilizados en el caso de las especies acuticas. El documento contiene asimismo una visin sinptica del abanico de instituciones y mecanismos de gestin y conservacin de las pesqueras y de los ecosistemas para esclarecer el contexto general en el que tendrn que funcionar los criterios de la CITES. Por ltimo, en el informe se hace una evaluacin minuciosa de la aplicabilidad de los criterios de inclusin de la CITES, sus definiciones, directrices, etc., para las especies marinas que son objeto de explotacin.
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LetterLetter from the Royal Hungarian Minister of Agriculture to Mr. David Lubin 1907
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No results found.This is the translation of the original letter Ref No. 7042/pres VII/I 1907 -
LetterLetter to Prof. G. Montemartini 1906
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No results found.Lubin discusses his financial limitations, his willingness to assist the IIA, and conditions for his potential move to Rome. -
Book (series)FlagshipThe State of Food Security and Nutrition in the World 2021
Transforming food systems for food security, improved nutrition and affordable healthy diets for all
2021In recent years, several major drivers have put the world off track to ending world hunger and malnutrition in all its forms by 2030. The challenges have grown with the COVID-19 pandemic and related containment measures. This report presents the first global assessment of food insecurity and malnutrition for 2020 and offers some indication of what hunger might look like by 2030 in a scenario further complicated by the enduring effects of the COVID-19 pandemic. It also includes new estimates of the cost and affordability of healthy diets, which provide an important link between the food security and nutrition indicators and the analysis of their trends. Altogether, the report highlights the need for a deeper reflection on how to better address the global food security and nutrition situation.To understand how hunger and malnutrition have reached these critical levels, this report draws on the analyses of the past four editions, which have produced a vast, evidence-based body of knowledge of the major drivers behind the recent changes in food security and nutrition. These drivers, which are increasing in frequency and intensity, include conflicts, climate variability and extremes, and economic slowdowns and downturns – all exacerbated by the underlying causes of poverty and very high and persistent levels of inequality. In addition, millions of people around the world suffer from food insecurity and different forms of malnutrition because they cannot afford the cost of healthy diets. From a synthesized understanding of this knowledge, updates and additional analyses are generated to create a holistic view of the combined effects of these drivers, both on each other and on food systems, and how they negatively affect food security and nutrition around the world.In turn, the evidence informs an in-depth look at how to move from silo solutions to integrated food systems solutions. In this regard, the report proposes transformative pathways that specifically address the challenges posed by the major drivers, also highlighting the types of policy and investment portfolios required to transform food systems for food security, improved nutrition, and affordable healthy diets for all. The report observes that, while the pandemic has caused major setbacks, there is much to be learned from the vulnerabilities and inequalities it has laid bare. If taken to heart, these new insights and wisdom can help get the world back on track towards the goal of ending hunger, food insecurity, and malnutrition in all its forms.