Wetland and inland valley bottoms (IVB) that have not been equipped with water control structures but are used for cropping. They are often found in Africa. They will have limited (mostly traditional) arrangements to regulate water and control drainage.
| 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Angola | 320.00 | 320.00 | 320.00 | 320.00 | 320.00 | 320.00 | 320.00 | 320.00 | 320.00 | 320.00 | 320.00 | 320.00 | 320.00 | 320.00 | 320.00 |
| Bangladesh | 1,545.00 | 1,545.00 | 1,545.00 | 1,545.00 | 1,545.00 | 1,545.00 | 1,545.00 | 1,545.00 | 1,545.00 | 1,545.00 | 1,545.00 | 1,545.00 | 1,545.00 | 1,545.00 | |
| Benin | 6.99 | 6.99 | 6.99 | 6.99 | 6.99 | 6.99 | 6.99 | 6.99 | 6.99 | 6.99 | 6.99 | 6.99 | 6.99 | 6.99 | |
| Burkina Faso | 21.40 | 21.80 | 22.31 | 22.41 | 22.41 | 22.41 | 22.41 | 22.41 | 22.41 | 22.41 | 22.41 | 22.41 | 22.41 | 22.41 | |
| Burundi | 68.21 | 83.00 | 83.00 | 83.00 | 83.00 | 83.00 | 83.00 | 83.00 | 83.00 | 83.00 | 83.00 | 83.00 | 83.00 | 83.00 | 83.00 |
| Central African Republic | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 |
| Chad | 21.40 | 21.40 | 21.40 | 21.40 | 21.40 | 21.40 | 21.40 | 21.40 | 21.40 | 21.40 | 21.40 | 21.40 | 21.40 | 21.40 | 21.40 |
| Côte d'Ivoire | 16.25 | 16.25 | 16.25 | 16.25 | 16.25 | 16.25 | 16.25 | 16.25 | 16.25 | 16.25 | 16.25 | 16.25 | 16.25 | 16.25 | |
| Democratic Republic of the Congo | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | |
| Ethiopia | 381.65 | 853.10 | 902.48 | 951.86 | 1,001.24 | 1,050.62 | 1,100.00 | 1,100.00 | 1,100.00 | 1,100.00 | 1,100.00 | 1,100.00 | 1,100.00 | ||
| Gambia | 13.17 | 13.17 | 13.17 | 13.17 | 13.17 | 13.17 | 13.17 | 13.17 | 13.17 | 13.17 | 13.17 | 13.17 | 13.17 | 13.17 | |
| Guinea Bissau | 25.21 | 29.37 | 29.37 | 29.37 | 29.37 | 29.37 | 29.37 | 29.37 | 29.37 | 29.37 | 29.37 | 29.37 | 29.37 | 29.37 | 29.37 |
| Indonesia | 3,526.33 | 3,133.00 | 3,133.00 | 3,133.00 | 3,133.00 | 3,133.00 | 3,133.00 | 3,133.00 | 3,133.00 | 3,133.00 | 3,133.00 | 3,133.00 | 3,133.00 | 3,133.00 | |
| Liberia | 18.00 | 18.00 | 18.00 | 18.00 | 18.00 | 18.00 | 18.00 | 18.00 | 18.00 | 18.00 | 18.00 | 18.00 | 18.00 | 18.00 | 18.00 |
| Madagascar | 254.60 | 254.60 | 254.60 | 254.60 | 254.60 | 254.60 | 254.60 | 254.60 | 254.60 | 254.60 | 254.60 | 254.60 | 254.60 | 254.60 | |
| Malawi | 61.90 | 61.90 | 61.90 | 61.90 | 61.90 | 61.90 | 61.90 | 61.90 | 61.90 | 61.90 | 61.90 | 61.90 | 61.90 | 61.90 | |
| Mali | 3.83 | 3.83 | 3.83 | 3.83 | 3.83 | 3.83 | 3.83 | 3.83 | 3.83 | 3.83 | 3.83 | 3.83 | 3.83 | 3.83 | 3.83 |
| Mauritania | 32.79 | 32.79 | 32.79 | 32.79 | 32.79 | 32.79 | 32.79 | 32.79 | 32.79 | 32.79 | 32.79 | 32.79 | 32.79 | ||
| Philippines | 39.48 | 39.48 | 39.48 | 39.48 | 39.48 | 39.48 | 39.48 | 39.48 | 39.48 | 39.48 | 39.48 | 39.48 | 39.48 | 39.48 | |
| Rwanda | 135.33 | 94.00 | 94.00 | 94.00 | 94.00 | 94.00 | 94.00 | 94.00 | 94.00 | 94.00 | 94.00 | 94.00 | 94.00 | 94.00 | 94.00 |
| Senegal | 37.00 | 37.00 | 37.00 | 37.00 | 37.00 | 37.00 | 37.00 | 37.00 | 37.00 | 37.00 | 37.00 | 37.00 | 37.00 | 37.00 | |
| Sierra Leone | 126.00 | 126.00 | 126.00 | 126.00 | 126.00 | 126.00 | 126.00 | 126.00 | 126.00 | 126.00 | 126.00 | 126.00 | 126.00 | 126.00 | |
| Uganda | 50.38 | 51.86 | 53.35 | 53.35 | 53.35 | 53.35 | 53.35 | 53.35 | 53.35 | 53.35 | 53.35 | 53.35 | 53.35 | 53.35 | |
| Zambia | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | |
| Zimbabwe | 20.00 | 19.67 | 18.00 | 16.33 | 16.00 | 15.67 | 15.33 | 15.00 | 16.00 | 16.00 | 16.00 | 19.03 | 19.03 | 19.03 | 19.03 |
| Luxembourg | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | ||||||||
| Malta | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | ||||||||
| Tunisia | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |||||||||
| United Arab Emirates | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |||||||||
| Chile | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | ||||||||
| Turkey | 1,620.00 | 1,655.00 |