Biodiversity Leaders Lament
Failure to Reach the Powerful
On SciDev.Net on 11 May 2010, reporting from Nairobi, David Njagi writes about the difficult path to action on...
Agricultural success from AfricaLast Updated on 2011-10-14 00:00:00
You are invited to present your perspective on the potential value of fertilizer tree systems as described in the article featured in this blog posting.
In response to the declining soil fertility in southern Africa and the negative effects that this leads to, such as food insecurity besides other developmental challenges, fertilizer tree systems (FTS) were developed as technological innovation to help smallholder farmers to build soil organic matter and fertility in a sustainable manner. In this paper, we trace the historical background and highlight the developmental phases and outcomes of the technology. The synthesis shows that FTS are inexpensive technologies that significantly raise crop yields, reduce food insecurity and enhance environmental services and resilience of agro-ecologies. Many of the achievements recorded with FTS
can be traced to some key factors: the... More »
Food InsecurityLast Updated on 2011-06-29 04:54:11
The terms Food Security and Food Insecurity refer to the lack of stable access to food supplies required for healthy nourishment and well-being. This can mean the inability to access sufficient calories or a sufficient variety of food types or nutrients for healthy diet and lifestyles.
The intent of this core article is to encourage the generation of a set of associated articles focused on the challenges and opportunities facing humankind in addressing food needs, worldwide.
It is not clear how many people on the planet live under conditions of food insecurity but estimates of 800 million to 1 billion of the world's estimated population of 7 billion are common. The factors behind food insecurity are many and complex. Worldwide, food production has outpaced population growth over the past several decades as illustrated in the graphic... More »
Regional Changes in Farmland Area PredictedLast Updated on 2011-03-25 00:00:00Large Regional Changes in
Farmland Area Predicted
ScienceDaily reports on March 25, 2011, that:
The effects of climate change and population growth on agricultural land area vary from region to region, according to a new study by University of Illinois researchers.
Regions with relative high latitudes -- China, Russia and the U.S. -- could see a significant increase in arable land in coming years, but Africa, Europe and India and South America could lose land area.
Civil and environmental engineering professor Ximing Cai and graduate student Xiao Zhang published their findings in the journal Environmental Research Letters.
While most other studies of climate change and agriculture have focused on projected crop yields, the Illinois researchers assessed global and regional land availability. Using international land and climate datasets and remote-sensing land-use maps,... More »
El Deterioro Patrimonial del Paisaje de la Huerta MediterráneaLast Updated on 2011-02-28 08:45:13Un estudio revela el deterioro patrimonial
del paisaje de la huerta mediterránea
Este comunicado está disponible en inglés.
El punto partida de la investigación son los recientes e intensos procesos de transformación de los regadíos tradicionales en el mundo mediterráneo y su incidencia en la degradación de unos paisajes valiosos desde el punto de vista productivo, patrimonial e identitario. La investigación aborda la relación entre agua y paisaje en las huertas, así como el tratamiento de sus valores patrimoniales en las actuaciones públicas. "Resulta imprescindible que la política hidráulica y los proyectos de modernización de las infraestructuras de riego, se diseñen partiendo del principio de la multifuncionalidad de los regadíos, asumido que la... More »
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