%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Valois, R.
%A Vouillamoz, Jean-Michel
%A Lun, S.
%A Arnout, L.
%T Assessment of water resources to support the development of irrigation in northwest Cambodia : a water budget approach
%D 2017
%L fdi:010070876
%G ENG
%J Hydrological Sciences Journal = Journal Des Sciences Hydrologiques
%@ 0262-6667
%K water balance ; hydrology ; irrigation ; evapotranspiration ; Cambodia
%K CAMBODGE
%M ISI:000407513700010
%N 11
%P 1840-1855
%R 10.1080/02626667.2017.1351030
%U https://www.documentation.ird.fr/hor/fdi:010070876
%> https://www.documentation.ird.fr/intranet/publi/2017/09/010070876.pdf
%V 62
%W Horizon (IRD)
%X 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.
%$ 062 ; 072