Articles | Volume 26, issue 3
https://doi.org/10.5194/hess-26-609-2022
https://doi.org/10.5194/hess-26-609-2022
Research article
 | 
07 Feb 2022
Research article |  | 07 Feb 2022

Drastic decline of flood pulse in the Cambodian floodplains (Mekong River and Tonle Sap system)

Samuel De Xun Chua, Xi Xi Lu, Chantha Oeurng, Ty Sok, and Carl Grundy-Warr

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Short summary
We found that the annual flood at the Cambodian floodplains decreased from 1960 to 2019. Consequently, the Tonle Sap Lake, the largest lake in Southeast Asia, is shrinking. The results are worrying because the local fisheries and planting calendar might be disrupted. This drastic decline of flooding extent is caused mostly by local factors, namely water withdrawal for irrigation and channel incision from sand mining activities.