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.
| Date | Value | Change, % |
|---|---|---|
| 2002 | 20.00 | 0.00% |
| 1997 | 20.00 | 0.00% |
| 1992 | 20.00 |
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