As most of Srey Santhor district is low lying and parallels the Mekong, Srey Santhor is subject to annual flooding when the Mekong rises. However, in 2000 90% of the land area in the district was flooded and 95% of the annual rice crop was completely destroyed.
Srey Santhor district is characterized by low-lying terrain that parallels the Mekong River. Consequently, flooding occurs annually when the river rises. In 2000, a significant portion (90%) of the land area in the district was submerged and nearly all (95%) of the annual rice crop was lost.