Maize and potatoes link Romania’s food to the Americas

Maize is linked to Central America and Mexico, potatoes to the Andes. Explore the regions of diversity of the crops that feed us.

Khoury et al., 2016 · FAO data, 2009–2011

The crop atlas

Choose a crop. See the regions that connect it to the world.

Leading crops

Bars show each crop’s share of crop calories.

Romania · 2009–2011

Maize

12.3%of crop calories

Central America and Mexico1

Primary regions of diversity

  1. 1Central America and Mexico

Markers indicate approximate diversity regions, without defining their boundaries. They do not show growing locations or the provenance of imports.

Beyond the selected crops

The share of calories associated with crops whose diversity regions lie outside the country’s regions.

For Romania, the average 2009–2011 range is 83.3–90.3%.

The interval midpoint, 86.8%, is 21.0 percentage points above the 177-country mean of 65.8%.

Romania’s data, crop by crop
  1. Wheat 38.2% of crop calories Central Asia · West Asia · Southern and eastern Mediterranean
  2. Maize 12.3% of crop calories Central America and Mexico
  3. Sunflower 11.3% of crop calories North America
  4. Sugar 8.6% of crop calories South Asia · Southeast Asia · Northeastern Europe · Southeastern Europe · Northwestern Europe · Southwestern Europe · Southern and eastern Mediterranean
  5. Potatoes 7.0% of crop calories Andean South America
  6. Barley 4.5% of crop calories Central Asia · West Asia · Southern and eastern Mediterranean
  7. All other crops 18.1% of crop calories

The atlas shows the six crop groups supplying the most calories. The remainder combines the other 47 groups.

What a region of diversity means

A primary region of diversity combines evidence about initial domestication, variation accumulated over time, and the richness of a crop's wild relatives. A crop can have several such regions.

The map shows relationships in the biological history of crops. Present-day farms, sellers, and trade routes sit outside this measure.

How much plant-based food is linked to other regions

Across the 177 countries in the study, the average share tied to crops with primary regions of diversity outside the country's regions was:

Calories
65.8%
Protein
66.6%
Fat
73.7%
Food weight
68.7%

Mean across the four measures: 68.7%.

The crops feeding a country often owe their diversity to several regions of the world.

What the percentage includes and why it has a range

The study covered 177 countries representing 98.5% of the world's population and used 2009–2011 averages from FAO food balance sheets. National food supply estimates the amount available for consumption after accounting for production, imports, exports, stock changes, and non-food uses. Individual meals can look different.

Each country's interval reflects the 11 crop groups left without an assigned primary region of diversity. The upper bound treats them as wholly foreign; the lower bound assumes that their regions include the country's regions. Bars show each crop’s share of total crop calories. Map markers indicate approximate locations of the regions assigned by the study.

See the ranges for all 177 countries
Share of calories associated with crops outside the country's regions, 2009–2011 average
CountryRangeInterval midpoint
Afghanistan19.4–22.2%20.8%
Albania76.0–86.8%81.4%
Algeria23.1–28.5%25.8%
Angola86.6–91.6%89.1%
Antigua & Barbuda79.0–99.6%89.3%
Argentina94.0–99.7%96.8%
Armenia18.6–32.0%25.3%
Australia91.8–100.0%95.9%
Austria69.7–81.6%75.7%
Azerbaijan21.5–31.5%26.5%
Bahamas68.7–99.9%84.3%
Bangladesh18.7–21.2%19.9%
Barbados90.2–99.8%95.0%
Belarus70.5–83.5%77.0%
Belgium71.5–81.2%76.3%
Belize73.8–85.2%79.5%
Benin50.5–53.9%52.2%
Bermuda74.3–98.8%86.6%
Bolivia81.7–87.1%84.4%
Bosnia & Herzegovina79.2–93.3%86.3%
Botswana76.0–87.2%81.6%
Brazil88.6–92.1%90.3%
Brunei40.8–54.2%47.5%
Bulgaria80.2–87.3%83.7%
Burkina Faso39.0–47.8%43.4%
Cambodia17.6–20.4%19.0%
Cameroon66.2–72.4%69.3%
Canada87.6–98.0%92.8%
Cape Verde65.5–74.5%70.0%
Central African Republic80.7–86.4%83.6%
Chad38.9–54.0%46.4%
Chile87.9–94.1%91.0%
China47.2–59.8%53.5%
Colombia74.0–78.0%76.0%
Congo - Brazzaville76.2–81.1%78.7%
Costa Rica76.4–83.3%79.8%
Côte d’Ivoire42.6–48.1%45.4%
Croatia69.3–80.6%74.9%
Cuba93.9–98.9%96.4%
Cyprus29.8–42.8%36.3%
Czechia78.0–85.1%81.5%
Denmark65.8–77.3%71.6%
Djibouti88.7–94.6%91.6%
Dominica83.0–94.3%88.6%
Dominican Republic92.4–99.6%96.0%
Ecuador78.1–82.5%80.3%
Egypt44.7–48.5%46.6%
El Salvador53.4–59.7%56.6%
Estonia65.7–83.3%74.5%
Eswatini87.6–98.7%93.2%
Ethiopia63.3–78.8%71.0%
Fiji80.2–84.4%82.3%
Finland74.2–83.5%78.8%
France69.4–79.3%74.3%
French Polynesia81.6–93.2%87.4%
Gabon77.5–82.5%80.0%
Gambia38.1–43.3%40.7%
Georgia26.6–33.8%30.2%
Germany70.2–83.1%76.7%
Ghana65.8–68.3%67.0%
Greece64.6–75.0%69.8%
Grenada77.4–98.5%87.9%
Guatemala50.1–55.3%52.7%
Guinea41.7–50.3%46.0%
Guinea-Bissau36.6–41.7%39.2%
Guyana88.0–96.3%92.1%
Haiti91.5–99.5%95.5%
Honduras45.8–51.1%48.4%
Hong Kong SAR China47.8–67.1%57.5%
Hungary76.3–91.8%84.0%
Iceland66.0–77.0%71.5%
India42.5–46.9%44.7%
Indonesia34.2–37.7%35.9%
Iran39.4–48.5%43.9%
Iraq42.1–45.3%43.7%
Ireland77.1–87.7%82.4%
Israel32.2–42.0%37.1%
Italy69.8–77.5%73.6%
Jamaica88.5–97.7%93.1%
Japan49.2–62.2%55.7%
Jordan29.6–32.6%31.1%
Kazakhstan48.4–56.9%52.6%
Kenya91.3–96.3%93.8%
Kiribati58.2–61.5%59.8%
Kuwait58.6–65.4%62.0%
Kyrgyzstan41.5–49.0%45.3%
Laos19.2–26.6%22.9%
Latvia70.8–82.5%76.6%
Lebanon27.8–39.5%33.7%
Lesotho92.8–96.7%94.8%
Liberia35.0–38.8%36.9%
Libya27.0–33.1%30.1%
Lithuania74.0–85.9%80.0%
Luxembourg71.7–92.8%82.2%
Macao SAR China54.8–71.5%63.1%
Madagascar97.1–100.0%98.5%
Malawi91.3–93.9%92.6%
Malaysia40.3–47.5%43.9%
Maldives36.0–47.6%41.8%
Mali29.7–35.5%32.6%
Malta20.2–33.9%27.0%
Mauritania63.7–65.2%64.4%
Mauritius95.3–100.0%97.6%
Mexico44.2–51.5%47.9%
Moldova82.1–89.5%85.8%
Mongolia83.2–91.4%87.3%
Montenegro72.7–89.4%81.1%
Morocco22.6–27.2%24.9%
Mozambique89.2–91.2%90.2%
Myanmar (Burma)28.7–33.7%31.2%
Namibia78.9–83.9%81.4%
Nepal45.1–55.0%50.0%
Netherlands69.2–77.7%73.5%
New Caledonia81.9–96.0%89.0%
New Zealand87.2–100.0%93.6%
Nicaragua55.4–59.0%57.2%
Niger18.3–21.9%20.1%
Nigeria40.5–49.3%44.9%
North Korea45.7–54.4%50.1%
North Macedonia75.4–83.5%79.4%
Norway74.6–84.1%79.4%
Pakistan45.8–48.9%47.4%
Palestinian Territories21.2–32.4%26.8%
Panama83.8–89.4%86.6%
Paraguay76.8–80.8%78.8%
Peru71.5–77.2%74.3%
Philippines21.4–28.6%25.0%
Poland75.1–82.0%78.6%
Portugal71.4–81.9%76.6%
Romania83.3–90.3%86.8%
Russia74.5–82.1%78.3%
Rwanda84.5–93.3%88.9%
Samoa52.2–58.6%55.4%
São Tomé & Príncipe80.0–85.6%82.8%
Saudi Arabia54.1–60.8%57.5%
Senegal50.5–53.2%51.9%
Serbia73.5–85.4%79.4%
Sierra Leone30.7–37.3%34.0%
Slovakia71.5–82.3%76.9%
Slovenia80.4–88.6%84.5%
Solomon Islands76.2–80.9%78.5%
Somalia74.6–77.0%75.8%
South Africa95.1–99.2%97.2%
South Korea38.4–54.7%46.6%
Spain65.3–71.1%68.2%
Sri Lanka18.9–21.4%20.2%
St Kitts & Nevis81.2–98.6%89.9%
St Lucia89.3–99.1%94.2%
St Vincent & the Grenadines80.1–97.4%88.8%
Sudan45.9–52.0%48.9%
Suriname91.9–97.9%94.9%
Sweden71.7–81.3%76.5%
Switzerland64.1–75.5%69.8%
Syria23.9–29.7%26.8%
Taiwan42.9–56.0%49.5%
Tajikistan36.1–41.4%38.7%
Tanzania86.0–91.7%88.8%
Thailand21.9–31.1%26.5%
Timor-Leste53.7–57.2%55.5%
Togo59.1–62.1%60.6%
Trinidad & Tobago90.7–98.9%94.8%
Tunisia18.3–25.5%21.9%
Türkiye30.5–36.8%33.6%
Turkmenistan25.2–30.5%27.9%
Uganda83.8–90.7%87.2%
Ukraine73.3–82.0%77.7%
United Arab Emirates49.9–58.2%54.0%
United Kingdom76.1–82.4%79.3%
United States82.6–98.5%90.5%
Uruguay91.5–99.5%95.5%
Uzbekistan27.7–35.7%31.7%
Vanuatu54.7–59.9%57.3%
Venezuela89.8–93.5%91.6%
Vietnam18.3–26.0%22.1%
Yemen46.5–50.2%48.3%
Zambia93.0–97.0%95.0%
Zimbabwe89.7–94.0%91.8%