CHIZU — the atlas of coffee research
Coffee research in El Salvador
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 60 papers are 60 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.
El Salvador 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
- Decreased Kidney Function Among Agricultural Workers in El Salvador2012cited 271open access
- Effects of Fair Trade and organic certifications on small-scale coffee farmer households in Central America and Mexico2010cited 204
- Priority Contribution. Ecology and conservation of birds in coffee plantations: a critical review2006cited 131open access
- Osteoporosis-related life habits and knowledge about osteoporosis among women in El Salvador: A cross-sectional study2004cited 66open access
- Genetic study of Coffea canephora coffee tree resistance to Meloidogyne incognita nematodes in Guatemala and Meloidogyne sp. nematodes in El Salvador for selection of rootstock varieties in Central America2000cited 40
- Mapping coffee plantations with Landsat imagery: an example from El Salvador2011cited 38
- Robust Coffee Rust Detection Using UAV-Based Aerial RGB Imagery2023cited 21open access
- Payment for Environmental Services in El Salvador2000cited 20open access
- Methanol Mitigation During Manufacturing of Fruit Spirits With Special Consideration of Novel Coffee Cherry Spirits2021cited 18open access
- Coffee Leaf Tea from El Salvador: On-site Production Considering Influences of Processing on Chemical Composition2022cited 10open access
Which stage of coffee
Only 30.2% of the whole index carries a stage label. Of this country's 60 papers, 21 carry one. The breakdown below is about those 21 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 60 papers, 51 carry one. The breakdown below is about those 51 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. El Salvador has 60 — a factor of 371.
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