Burkina Faso, Environment, Flooding, "Bund, low rock walls built to prevent soil erosion by flash floods. Stones are placed along the contours on gentle slopes. Sometimes the bunds are reinforced by planting tough grasses along the lines. The stones and grass encourage rain water to infiltrate the soil and reduce the amount of rain water that is lost by run-off. Any soil that has been eroded by run-off is trapped by the bund. Topsoil and organic matter (e.g. leaf litter) is deposited here.Bunds are placed 10 to 25 metres apart"
Légende

Burkina Faso, Environment, Flooding, "Bund, low rock walls built to prevent soil erosion by flash floods. Stones are placed along the contours on gentle slopes. Sometimes the bunds are reinforced by planting tough grasses along the lines. The stones and grass encourage rain water to infiltrate the soil and reduce the amount of rain water that is lost by run-off. Any soil that has been eroded by run-off is trapped by the bund. Topsoil and organic matter (e.g. leaf litter) is deposited here.Bunds are placed 10 to 25 metres apart"

Info+

Mark Newham eye ubiquitous / hutchison

Crédit

Photo12/Eye Ubiquitous

Notre référence

UQS10A37_291

Model release

Non

Licence

Droits gérés

Format disponible

52,2Mo (2,5Mo) / 29,6cm x 44,1cm / 3501 x 5208 (300dpi)

Mots clés

Burkina Faso Inondation Avenue Bas Basse Eviter Flash Flot Pierres Situé Placé Contours Doux Léger Pentes Parfois Renforcé Planter Plantation Résistant Herbe Lignes Pierres Herbe Encourager Pluie Inflitrer Réduire Quantité Pluie Que Qui Perdu Ecoulement Tout Que Qui Eté Erodé Erosion Ecoulement Piégé Avenue Couche arable Organique Matière Par exemple Feuille Déposé Ici Situé Placé Mètres Intervalle

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