African Geographic Pictures Collection
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| Image number: | 1121 |
| Feature : | collector trench |
| Grouping : | agricultural techniques |
| Discipline : | agriculture |
| Year : | 1986 |
| Locality : | Rwaza Hill, Runyinya |
| Country : | Rwanda |
| Region - tribe : | Butare |
| Physiographic region : | Interlacustrine belt |
| Notice : | notice Collector trenches are used for soil conservation and water conservation purposes. Rilling in the upslope parcell fills the trench locally and the rill can pass into the next parcell. |
| Reference : | Moeyersons, Jan, 1986 Image 1121. In : Moeyersons, Jan : "African Geographic Pictures", http://www.africamuseum.be/de/research/collections_libraries/earth_sciences/collections/geopic" |