Nguyen Thanh-Tung, Qaim Matin
Center for Development Research (ZEF), University of Bonn, Bonn, Germany.
Institute for Food and Resource Economics (ILR), University of Bonn, Bonn, Germany.
Nat Food. 2025 Feb;6(2):205-212. doi: 10.1038/s43016-024-01096-6. Epub 2025 Jan 2.
Undernutrition and low dietary quality remain widespread issues in Africa. As most rural households in the region are involved in farming, the diversification of own farm production could improve their access to nutritious foods. Here we use representative panel data from six African countries to estimate this effect across different scales. We show that farm production diversity is positively associated with household dietary diversity-yet the average magnitude of the association is small, depends on the specific measure of production diversity and increases with distance from urban centres. In all countries, markets and market access are more important for dietary diversity than own production. Because village-, town- and district-level production diversity are often positively associated with dietary diversity, higher diversity on each individual farm may not be required. The appropriate spatial scale should be considered when designing diversification strategies.
营养不良和低膳食质量在非洲仍然是普遍存在的问题。由于该地区大多数农村家庭都从事农业生产,自家农场生产的多样化可以改善他们获得营养食物的机会。在此,我们使用来自六个非洲国家的代表性面板数据,在不同规模上估计这种影响。我们表明,农场生产多样性与家庭膳食多样性呈正相关——然而这种关联的平均程度较小,取决于生产多样性的具体衡量标准,并且随着与城市中心距离的增加而增加。在所有国家,市场和市场准入对膳食多样性的影响比自家生产更为重要。由于村级、镇级和区级的生产多样性通常与膳食多样性呈正相关,可能并不需要每个农场都有更高的多样性。在设计多样化策略时应考虑适当的空间尺度。