Page 230 - Area 9 - Relevant Document
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Trees or bananas should not be planted on the floor of narrow gullies
since the stems will decrease the cross-section of the gully thus
increasing the velocity of any water flowing down its sides. The stems
can also divert the stream to the sides of the gully, causing
undermining erosion of the gully sides.
When the sides of a gully are not steeper than 1:1, or if there are steps
on the sides, trees can be planted to stabilize the gully walls.
Management aspects
Management will depend on the species and purpose.
Benefits
Reclamation of land, tree production and reduced siltation
downstream.
Examples of species
The best choices are easily propagated species with quick initial
growth. Use of cuttings is recommended. Bananas and Morus alba are
recommended. Euphorbia tirucalli, E. candelabrum, Croton spp.,
and Commiphora spp. are also very useful in gully reclamation.