Context

The Upper Vietnamese Mekong Delta comprises an extensive river, floodplain and canal network with seasonal movement of water in the floodplain.

Reference alternative

The reference alternative is the scenario in which the NbS will not be implemented.

Project alternative

The project consists of improving natural floodplain dynamics and conversion to a flood-based agriculture/aquaculture model.

Identification and selection of effects

The identification of effects is one of the most important steps and is done by comparing the project alternative with the reference alternative and identifying the incremental costs and benefits of the project alternative.

Financial analysis

To make (parts of) projects financially viable, they need to generate tangible revenue streams that can be captured by a stakeholder. However, aside from revenues from ecotourism, there are no tangible revenue streams resulting from the projects.

Benefits

At the local scale, increases in fishing and aquaculture revenues are captured under the change in income from agriculture due to the change in the agricultural model.

Costs

The table below gives an overview of the cost estimates for the project site and basin. Note that these estimates are all very indicative and based on currently available data.

Discussion of results

The table below shows the results from the CBA. The results are indicative due to the assumptions being made, but some conclusions can be drawn from them.