CHIZU — the atlas of coffee research
Coffee research in Cameroon
Two limits come with this count. Only 100,474 of the 190,643 searchable papers (52.7%) carry an author affiliation country. The other 90,169 (47.3%) carry none. So these 189 papers are 189 out of the 100,474 whose affiliation is known. And a co-authored paper is counted once for every country its authors sit in. Per-country counts therefore do not add up to the whole.
Cameroon is a coffee-producing country.
Check it yourself
This is not our word for it. You can run the same query against the same index.
When they were written
1984–2026
Years before 1600 are treated as unknown. The upstream data (OpenAlex) sometimes writes 1400 when the year is missing, and that is a placeholder, not a measurement.
Where they appeared
Top 8 sources (journals and repositories)
Most cited
10 papers, most cited first
- Coffee consumption and the risk of cancer: An overview2008cited 215
- Factors Affecting Technical Efficiency among Coffee Farmers in Côte d’Ivoire: Evidence from the Centre West Region2003cited 110
- Shade trees have higher impact on soil nutrient availability and food web in organic than conventional coffee agroforestry2018cited 97open access
- New species and records of Trichoderma isolated as mycoparasites and endophytes from cultivated and wild coffee in Africa2021cited 94open access
- Enhancement of resilience to climate variability and change through agroforestry practices in smallholder farming systems in Cameroon2019cited 89open access
- Economic crisis, small-scale agriculture, and forest cover change in southern Cameroon2000cited 85
- Discrimination of post-harvest coffee processing methods by microbial ecology analyses2016cited 73
- Effect of Shade on Arabica Coffee Berry Disease Development: Toward an Agroforestry System to Reduce Disease Impact2008cited 73open access
- Deforestation in Cameroon: immediate causes and consequences2005cited 70
- The broad spectrum of possibilities for spent coffee grounds valorisation2017cited 69
Which stage of coffee
Only 30.2% of the whole index carries a stage label. Of this country's 189 papers, 53 carry one. The breakdown below is about those 53 papers only — the rest were never candidates for it.
One paper can carry several labels, so the breakdown adds up to more than that number.
Which field
Only 75.9% of the whole index carries a field label. Of this country's 189 papers, 174 carry one. The breakdown below is about those 174 papers only — the rest were never candidates for it.
One paper can carry several labels, so the breakdown adds up to more than that number.
What language
"undetermined" means the upstream record carried no language. We did not guess one.
Knowledge is not evenly spread
Counting only papers whose author affiliation is known, the largest is Indonesia with 22,248. Cameroon has 189 — a factor of 118.
That gap does not follow where coffee is grown. Research gathers where the means to do research are, not where the coffee is. Making that visible is why CHIZU exists.
Other countries
Indonesia 22,248United States 17,988Brazil 10,857United Kingdom 5,569China 4,887India 3,542Germany 3,185Italy 3,111France 3,072Japan 2,822Colombia 2,489Spain 2,363