In early 2004, this wetland area became a wetland reserve by the decision of the Vietnamese government. It was also chosen as one of two typical areas of wise biological diversity reserve  in Mekong Basin sponsored by IUCN, GEF, UNDP, and MWBP.
In early 2004, this waterlogged region was designated as a wetland sanctuary by the Vietnamese government. It was also selected as one of two exemplary regions of wise biological diversity reserve in the Mekong Basin sponsored by IUCN, GEF, UNDP, and MWBP.