Agricultura de tierras secas
Las regiones semiáridas y áridas a menudo se denominan tierras secas y se encuentran en el Sahel de África, África del Norte, Oriente Medio y la costa del Pacífico de América del Sur. Estas áreas se caracterizan por la escasez de precipitaciones anuales y suelen albergar grupos de pastores. Una de las principales preocupaciones agrícolas de las tierras secas es el uso eficiente y la ubicación de recursos limitados.
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Recurso clave14/11/2012 La UNCCD estima que más de 250 millones de personas quedan afectadas por la degradación de terrenos, y casi mil millones de personas en más de 100 países están en peligro. Según la WMO, 33% de la superficie de la tierra es vulnerable para la degradación de terreno. En términos más regionales,...
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Recurso clave26/2/2014 Pastoralism is a livelihood whereby people depend upon herding domesticated livestock. In East Africa, pastoralists depend primarily upon cattle, sheep, donkeys, goats and camels— listed in order of least resilience as one moves into drier and more arid lowland areas. Pastoralists play an...
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Recurso clave28/9/2016 Mucho del contenido a continuación se toma de publicaciones previas de ECHO que están disponibles enwww.ECHOcommunity.org. Las referencias se abrevian como AN (Notas de Asia), EAN (Notas del Este de África), EDN (Notas de Desarrollo de ECHO), y TN (Notas Técnicas). Donde es posible, enlaces de...
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16/12/2021 It is estimated that drylands occupy 40% of the earth’s surface.Drylands are regions where the average annual precipitation is less than 65% of the average annual potential evapotranspiration (an Aridity Index of < 0.65). The FAO Aridity Index is defined as a 30 year average of annual...
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Recurso clave1/1/2007 Por Dr. F. W. Martin. Publicado en partes, 1989 y 1994; revisado en 1998 y 2007 por personal de ECHO Aunque casi todas las plantas son útiles de alguna manera, no todas son igualmente valiosas. Por ejemplo, el trigo, el arroz y el maíz pueden ser considerados las plantas más valiosas en el mundo...
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Recurso clave 1/1/1990 I often tell folks that ECHO specializes in growing food under difficult conditions. The pigeon pea, Cajanus cajan, is a prime example of a tough but nutritious plant for just such cases. This article is directed toward two audiences. For some of you, pigeon pea is already an important crop. You...
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Recurso clave20/1/1992 En un lenguaje sencillo, agroforestería es la producción de árboles y de cultivos no arbóreos o animales en el mismo terreno. Los cultivos pueden sembrarse juntos al mismo tiempo, pueden sembrarse en rotación o incluso pueden sembrarse en parcelas separadas cuando los materiales de uno se...
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Recurso clave1/1/2010 Durante muchos años se han aplicado los métodos occidentales y convencionales de silvicultura en el que se promueven las especies exóticas de árboles para combatir la desertificación en los países del Sahel. Proyectos grandes y pequeños habían sido encargados con el fin de disminuir el asumido...
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Recurso clave1/1/2011 Una presa de arena es una pared de concreto reforzado construida a través de un río estacional para captar y contener el agua subterránea en la arena. Primero se construye un metro de alto y hasta 90 metros a través. Durante lluvias estacionales erráticas y fuertes, agua y limo fluyen sobre la...
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Recurso clave1/1/2013 En las regiones como Sahel al oeste de África, la pérdida de árboles en el paisaje (los cuales son cortados para producir leña o madera o que han sido excesivamente pastoreados por los animales) en combinación con los frecuentes períodos de sequía ha dado como resultado suelos descubiertos que...
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Recurso clave21/3/2019 This Technical Note provides an overview of parasitic plants of agricultural significance in Africa. Parasitic weeds cause drought stress and stunted crops. Affected plants include cereal grains (e.g., sorghum [Sorghum bicolor] and maize [Zea mays]) and grain legumes (e.g., cowpea [Vigna...
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Recurso clave23/7/2019 Descubrí los huertos centuplicados mientras investigaba sobre maneras de regar las plantas directamente en la zona radicular. Quería saber cómo controlar de una manera práctica y económica algunas de las variables que influyen sobre el crecimiento de la planta, como la disponibilidad del agua y...
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16/10/2020 A continuación se presenta un resumen del informe de un ensayo de semillas que ECHO recibió en 2013 del voluntario del Cuerpo de Paz Chris Peterson, que trabajaba en Uganda (Nalugala, distrito de Wakiso). Compartir los resultados de los esfuerzos de Peterson sirve como ejemplo de qué puede...
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ECHO publications referenced in this document include ECHO Development Notes (EDN), East Africa Notes (EAN), Technical Notes (TN), and ECHO East Africa Symposium (EEAS) presentations. Technical Notes and EDN issues can be found by clicking on the “Publications” tab on ECHO’s networking site,...
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20/4/2013 El artículo por Dov Pasternak sobre lablab (en este número) me recordó el material en los archivos de ECHO de hace varios años. Reimar von Schaaffhausen, trabajando en São Paulo, Brasil, envió artículos y cartas a lo largo de los años sobre el valioso papel que el lablab (y el frijol gandul...
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20/7/2005 “Gray water” (also “grey water,” “graywater” or “greywater”) is the term used to describe wastewater from dish washing, laundry, bathing, and rinsing. (Note: the term gray water does not refer to toilet waste, which is often called “black water.”) Although gray water does not need extensive...
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19/12/1998 Los árboles pueden ser una fuente efectiva de mantillo en las tierras áridas.
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19/10/1996 A Technical Note on Dry Farming Partially Buried Flower Pots or Tin Cans Save in Watering Capturing Water from Fog Drip Irrigation Book Reviews:Ways of Water: Run-off, Irrigation and Drainage and Vanishing Land and Water: Soil and Water Conservation in Dry Lands Book Review:Looking After Our...
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29/1/2019 Más de 4 millones de personas en las zonas sahelianas del África Occidental enfrentan dificultades tras períodos de sequía y el aumento del precio de los alimentos. En junio, la FAO envió casi US$10 millones en ayuda para los productores azotados por la sequía en la región, los cuales dependen de...
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19/10/1996 Zai Holes Harness Termites to Increase Crop Yields Grass Mulch: An Innovative Way of Gardening in the Dry Tropics Colored Plastic Mulches Thick Mulch for No-Till Gardens Rice Hull Mulch
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In every region of the world it is necessary to find or develop appropriate techniques for agriculture. A large part of the surface of the world is arid, characterized as too dry for conventional rain fed agriculture. Yet, millions of people live in such regions, and if current trends in...
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1/7/2013 Conservation agriculture (CA) has been promoted in East Africa through a number of initiatives over the past half year. In this article, we share what ECHO has gleaned from regional partners, in hopes that you can expand upon these successes and also promote further sharing on ECHO’s website....
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17/10/2018 La región árida situada directamente al sur del desierto del Sahara (el Sahel), que va desde Senegal hasta Etiopía posee muy limitados recursos de grasas y aceites. Los productos lácteos producidos por vacas y ovejas son escasos y los cultivos oleaginosos tradicionales son muy pocos. Esto...
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19/1/2016 Prof. Dov Pasternak working in Israel, was among the pioneers of drip irrigation. He researched irrigation with saline water and conducted domestication of arid land crops. He received a UNESCO Chair for his work on desert research. For over 10 years Prof. Pasternak worked as Principal Scientist...
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20/7/2010 Looking for a nutritious legume that thrives in dry, cool conditions? You might want to tryCicer arietinum, referred to as chickpea and also by many other common names such as garbanzo, gram and bengal gram. Chickpea is noted for drought tolerance. It will produce a crop with an annual rainfall...
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19/5/1998 A conversation concerning the difficulty of obtaining mulch in semi-arid areas.
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ICARDA works with a tight focus on the problem-solving needs of resource-poor farmers, achieving this through the in-field delivery of its research outputs. Although global food production has increased by 20 per cent in the past decade, food insecurity and poverty remain widespread, while the...
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The International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) is an international non-profit organization that undertakes scientific research for development.
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6/3/2014 The HAFIR is an underground reservoir designed for storing rain water.Hafirs are usually constructed where there is enough rainfall and where there is no underground water.It is usually big enough to cater for the needs of the villagers and their live-stock for a whole season.
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Recurso clave 1/2/1991 Food from Dryland Gardens encourages gardens that serve local needs, that are based on local knowledge, and that conserve natural resources and the biological diversity of traditional crops. It was written for field workers, extension agents, students, project workers, and program planners. Both...
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This group pageexists so that individuals involved in Dryland Farming around the world can connect. We encourage you to share the challenges you face in yourendeavors, discuss lessons and techniques learned through your experiences, and share your story!
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With research, training and advocacy, we help build climate resilience, productivity and equity in the dryland areas of East Africa, Ethiopia, the Sahel and Sudan
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1/11/2016 On average, crop yields under DER+ and TER+ increased by 30% and 16%, respectively, as compared to CT. Our study demonstrates that field water conservation tillage practices that incorporate CA principles are effectively increasing green water in the root zone available for crops. RCA systems...
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2/3/2016 Session: World Renew supports innovative ways to combat climate change. The presentation will dwell on lessons learnt from Conservation Agriculture promotion in pastoralist areas which will encompass adaptation, scaling up and extension methodologies based upon lessons learned from the field....
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4/2/2015
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15/11/2016 Understanding the dynamics of ecological design and agricultural practices connect at the point of design. Travel with us through our design process to create an ecologically balanced and appropriate diagram to implement, whether on small acreage or vast hectares of land. Learn the steps and...
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3/3/2016 Session: This session will demonstrate Pastoralist Managed Natural Regeneration, a new reforestation practice which is successfully reversing the rapid deforestation and desertification in dryland Africa. Pastoralist Managed Natural Regeneration (PMNR) has been shown to be a simple, income...
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29/12/2014 Agricultural Prosperity in Dry Africa contains a wealth of practical suggestions for dealing with the problems facing dryland farmers in Africa. He discusses crops, strategies, and technologies that lead to increased production and income for farmers with limited resources.
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“You must plant the rain before you plant a seed or tree!” proclaimed rain farmer Mr. Zephaniah Phiri Maseko of Zimbabwe. By doing just that, he and his family turned a wasteland into an oasis, raised groundwater and well levels even in dry years, reduced flooding in wet years, and enhanced the...
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8/2/2017 In marginal environments where strong crop-livestock interactions exist, inclusive and equitable access to finance, well-functioning land rental markets, and efficient provision of extension advisory services contribute significantly towards the shift to more sustainable land use management and...
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A farmer from Burkina Faso who popularized an ancient farming technique to reverse desertification is among the winners of Sweden's "alternative Nobel prize", announced on Monday. Yacouba Sawadogo shared this year's award with three Saudi human rights activists and an Australian agronomist. The 3...
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Rural Solutions is a video series that highlights solutions to specific challenges that are common in rural areas of developing countries. As natural resources become more scarce, herders who migrate seasonally have to travel long distances to find water and grazing land. Here is a solution to...
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Abstract, 2013,International Journal of Agriculture and Forestry Desertification, a phenomenon referring to land degradation in arid, semi-arid and dry sub-humid regions as a result of climatic variations and human activities, is considered as one of the most severe environmental and...
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The Journal of Dryland Agriculture (JODA) is an international journal that presents a platform for sharing and dissemination of knowledge in science and technology related to Dryland Agriculture and allied fields. It is a multidisciplinary journal that tries to promote good understanding of the...
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Recurso clave 20/1/2019 The analysis in this report highlights that although these questions can be formulated in relatively simple terms, they certainly do not have simple answers. In fact, the two main conclusions that can be drawn from our research both highlight this point. First, the specific context in which a...
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Recurso clave 1/1/1996 This is a book of practical ideas. It is written for people who help those who live and make their living under difficult conditions in the tropics and subtropics. What should a development worker do to assist a community? There are no simple answers, but there are many possibilities—plants,...
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Abstract,Agronomy for Sustainable Development, 2015 Dryland areas cover about 41% of the Earth’s surface and sustain over 2 billion inhabitants. Soil carbon (C) in dryland areas is of crucial importance to maintain soil quality and productivity and a range of ecosystem services. Soil...
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20/6/2006 Cuba's enforced ecological learning experience Input substitution or ecological agriculture? The transition process to ecological agriculture in Chiapas, Mexico Towards more sustainable livelihoods Beechenhill Farm finds an organic future Organising for organic agriculture in Tanzania Cabiokid,...
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The world’s drylands include hyperarid, arid, semi-arid and dry subhumid areas where rainfall is highly variable, droughts are common and water is the principal limiting factor for agriculture. Dryland soils, which are characterized by low levels of moisture, organic matter, and biological...
- Soil and climate conditions in India's drylands make them particularly well suited to organic agriculture. These marginal lands, with their marginal soils, tend not to respond well to intensive farming practices. They are actually better suited to low-input farming systems that make ample use of...
- Thomas, Richard & El Dessougi, Hanadi & Tubeileh, Ashraf. (2006). Soil System Management Under Arid and Semi-Arid Conditions. 10.1201/9781420017113.ch4. Soil fertility in systems under arid and semi-arid conditions, hereafter referred to as dry areas or drylands, is constrained by...
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1/1/2019 Understanding deserts and drylands is essential, as arid landscapes cover >40% of the Earth and are home to two billion people. Today’s problematic environment–human interaction needs contemporary knowledge to address dryland complexity. Physical dimensions in arid zones—land systems, climate...