Publications des scientifiques de l'IRD

De Noni Georges, Viennot Marc, Trujillo G., Custode E. (1997). Ruissellement et érosion sur des parcelles de cangahua réhabilitée (période 1994-1996). In : Zebrowski Claude (ed.), Quantin Paul (ed.), Trujillo G. (ed.), Villamar M.D. (collab.). Suelos volcanicos endurecidos. Quito (ECU) ; Quito (ECU) ; Quito (ECU) ; Quito : UE ; ORSTOM ; PUCE ; UCE, p. 331-342. Suelos Volcanicos Endurecidos, 3., Quito (ECU), 1996/12/9-14.

Titre du document
Ruissellement et érosion sur des parcelles de cangahua réhabilitée (période 1994-1996)
Année de publication
1997
Type de document
Colloque
Auteurs
De Noni Georges, Viennot Marc, Trujillo G., Custode E.
In
Zebrowski Claude (ed.), Quantin Paul (ed.), Trujillo G. (ed.), Villamar M.D. (collab.) Suelos volcanicos endurecidos
Source
Quito (ECU) ; Quito (ECU) ; Quito (ECU) ; Quito : UE ; ORSTOM ; PUCE ; UCE, 1997, p. 331-342
Colloque
Suelos Volcanicos Endurecidos, 3., Quito (ECU), 1996/12/9-14
In the highlands of Ecuador, the response to an increase in alimentary needs leads to extend cultivable lands. Under these conditions, the reclamation of the pyroclastic hardened volcanic soils by mechanical woorks is a vital necessity. However the new soil material which has been roturated and disagregated, presents such a susceptibility that it becomes important to protect it against erosion. In order to offer sustainable alternatives, experimental studies have been undertook in two experimental stations located in the interandean valley next to Quito (2,500 - 2,900 m), in a subhumid to subarid climate with two dry seasons (2 to 4 months). The field experiment was carried out during 2 cultural years, in small runoff plots where daily runoff, erosion and rain have been measured. In oat plots, conservative cultural practices have been tested: acover with a pre-irrigated oat, a flat terrace, a pervious check dam with cangahua blocks, in comparison with a reference plot. On the reference plot, results swowed that erosion and runoff were important despite a weak erosivity (80
Plan de classement
Erosion et conservation des sols [068EROSOL]
Descripteurs
EROSION ; CONSERVATION DU SOL ; RUISSELLEMENT ; PARCELLE DE CULTURE ; CANGAHUA ; REHABILITATION DU SOL ; ZONE DE MONTAGNE
Description Géographique
EQUATEUR ; ANDES
Localisation
Fonds IRD [F A010012910] ; Montpellier (Centre IRD) ; Quito
Identifiant IRD
fdi:010012922
Contact