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Disconnected wetland in Laos and Thailand
Wetland conversion for agriculture and urbanization often disconnects them from rivers and reduces wetland area. Moreover, the construction of hydropower dams has made river flow more constant, reducing sediment and nutrient supply.
Improving the flooded forest ecosystem
Flooded forest is a specific type of ecosystem characterized by the regular inundation of water due to the natural flooding of the Mekong River.
Stress & Pressure
Uncontrolled encroachment of the flooded forest has led to declines in fish populations and reduced income from fishery. The conversion of flooded forest to agricultural land has destroyed the vital breeding grounds and nursery habitats for fish.
Upscaling potential maps
The map below shows the suitability of restoration of the flooded forest in Cambodia. Areas in dark green are highly suitable for reforestation.
Potential NbS measures
This case study area is located in Kampong Chhnang province, covering flooded forests along the Tonle Sap River, which connects the Mekong River with the Tonle Sap Lake.
Stress & Pressure
The Mekong Upper Delta supports extensive agricultural production. This area used to be characterized by naturally occurring wide spread floods in the wet season (see figure above).
Potential NbS measures
Upscaling flood-based agriculture systems and natural floodplain protection is proposed as a Nature-based solution for this region.
Improving riverine wetland ecosystems
Maintaining habitat connectivity is essential for species movements, resource flow, and ecological processes across landscapes.
Stress & Pressure
Large areas of Lao and Thailand were previously considered wetlands. These wetlands were crucial sources of water and food, providing rice, fish, and waterfowl, and supporting the livelihoods of millions of people.
Potential NbS measures
This case study area is located at Goot Ting wetland in Thailand, along the Mekong River, five kilometres south of Bueng Kan District, Bueng Kan Province.