Article (Scientific journals)
Ring dike system to harness floodwater from the Mekong River for paddy rice cultivation in the Tonle Sap Lake floodplain in Cambodia
Someth, Paradis; Kubo, Narita; Tanji, Hajime et al.
2009In Agricultural Water Management, 96, p. 100-110
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Keywords :
Floodplain development; Floodwater; Mekong River; Rice cultivation; Ring dike; Tonle Sap Lake; Water balance
Abstract :
[en] Located in the floodplain of the Mekong River and the Tonle Sap River, Batheay irrigation system and its reservoir directly receive floodwater from the Mekong. The Batheay reservoir formedby a ring dike functions as botha reservoir anda paddy field. In thewet season, the ring dike prevents floodwater fromentering the reservoir and rainy season rice is growninside the dike. After harvesting, the gateson the ring dike are openedto receive floodwater. The water is stored inside the dike for cultivating dry season rice outside the dike. In this paper, the irrigation system is studied as a model site for future development of the floodplain of the Tonle Sap Lake of Cambodia. Specifically, this paper is concerned with the study of water balance and analysis of the hydrologic components of the Batheay irrigation system, and the effectiveness of the ring dike system. The study found that floodwater of the Mekong River contributed about 74% to the total inflow to the Batheay reservoir. Contributions to the total water supply of reservoir water, floodwater remaining in the fields, and precipitation were 73, 12, and 15%, respectively. The efficiency of the systemwas found to be 92%. The dike system is expected to be a paradigm for the floodplain of the Tonle Sap Lake.
Disciplines :
Earth sciences & physical geography
Agriculture & agronomy
Civil engineering
Author, co-author :
Someth, Paradis
Kubo, Narita
Tanji, Hajime
Ly, Sarann ;  Université de Liège - ULiège > Doct. sc. agro. & ingé. biol.
Language :
English
Title :
Ring dike system to harness floodwater from the Mekong River for paddy rice cultivation in the Tonle Sap Lake floodplain in Cambodia
Publication date :
2009
Journal title :
Agricultural Water Management
ISSN :
0378-3774
eISSN :
1873-2283
Publisher :
Elsevier Science
Volume :
96
Pages :
100-110
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
the Core Research for Evolutional Science and Technology, Japan Science and Technology (CREST-JST).
Available on ORBi :
since 08 August 2011

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