Drivers of household food availability in sub-Saharan Africa based on big data from small farms | Land Portal

Resource information

Date of publication: 
January 2015
Resource Language: 
ISBN / Resource ID: 
eldis:A74165

Achieving sustainable food security (i.e., the basic right of people to produce and/or purchase the food they need, without harming the social and biophysical environment) is a major challenge in a world of rapid human population growth, large-scale changes in economic development and in the face of climate change.

In sub-Saharan Africa (SSA), production on smallholder farms is critical to the food security of the rural poor and contributes the majority of food production at the national level.

National policies and local interventions have pro- found impacts on the opportunities and constraints that affect smallholders.

However, policy frameworks that aim to improve food security and rural livelihoods in the developing world face many uncertainties and often fail.

The formulation of effective policies needs adequate information on how different options affect the complex issues surrounding food security and sustainable development.

Authors and Publishers

Author(s), editor(s), contributor(s): 

R. Frelat

Publisher(s): 

PNAS is one of the world's most-cited and comprehensive multidisciplinary scientific journals, publishing more than 3,800 research papers annually. Established in 1914, PNAS publishes cutting-edge research, science news, Commentaries, Reviews, Perspectives, Colloquium Papers, and actions of the National Academy of Sciences.


The journal's content spans the biological, physical, and social sciences and is global in scope. Nearly half of all accepted papers come from authors outside the United States.


Data provider

eldis (ELDIS)

Eldis is an online information service providing free access to relevant, up-to-date and diverse research on international development issues. The database includes over 40,000 summaries and provides free links to full-text research and policy documents from over 8,000 publishers. Each document is selected by members of our editorial team.


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