Publications des scientifiques de l'IRD

Valois R., Vouillamoz Jean-Michel, Lun S., Arnout L. (2017). Assessment of water resources to support the development of irrigation in northwest Cambodia : a water budget approach. Hydrological Sciences Journal = Journal Des Sciences Hydrologiques, 62 (11), p. 1840-1855. ISSN 0262-6667.

Titre du document
Assessment of water resources to support the development of irrigation in northwest Cambodia : a water budget approach
Année de publication
2017
Type de document
Article référencé dans le Web of Science WOS:000407513700010
Auteurs
Valois R., Vouillamoz Jean-Michel, Lun S., Arnout L.
Source
Hydrological Sciences Journal = Journal Des Sciences Hydrologiques, 2017, 62 (11), p. 1840-1855 ISSN 0262-6667
Water availability is the primary constraint on the improvement of food security in rural areas in northwestern Cambodia. A 4-year study was carried out in the upper Stung Sreng watershed to assess water resources. Four sub-watersheds with different land cover types, ranging in size from 1.5 to 185km(2), were monitored using dedicated weather stations and rain- and streamgauges. Geophysics and observation boreholes were used to characterize aquifers. Rainwater is mostly split into evapotranspiration (annual mean of 54% rainfall) and streamflow components (49%), because groundwater recharge is low (1%). Thus, rainwater and streamflow are the main sources for irrigation development. Groundwater can be used only in specific locations for low water-demand crops. A total of 186 household ponds and three village-scale dams were built and 31 wells were installed. The household pond was determined to be the best solution for irrigation development because of its simple management.
Plan de classement
Hydrologie [062] ; Bioclimatologie [072]
Description Géographique
CAMBODGE
Localisation
Fonds IRD [F B010070876]
Identifiant IRD
fdi:010070876
Contact