The Catchment Model recreates two river catchments in miniature - one catchment featuring various natural flood management (NFM) measures and another reflecting a more typical modern rural landscape. "Rain" is introduced into the catchment via a number of nozzles and the resulting flow of water through the river channel and across the wider landscape can be easily seen. More importantly, the volume of water being "retained" by the two catchments can be measured, showing very clearly that the catchment with various NFM measures retains far more water than its counterpart. This natural capacity of the landscape to retain water is what NFM relies on, slowing flood flows so that flood events are more manageable for the communities impacted by them. The Model's tangible demonstration of what NFM can deliver will help spread the NFM message to communities all over the Tweed catchment.
The Catchment Model in use at a local agricultural show
A close-up view of the Model
The catchment below features many elements of NFM including a meandering river channel, functioning wetlands and riparian woodlands.
A close-up of the NFM catchment.
A close-up of the non-NFM catchment (note the straightened river channel and lack of riparian woodlands).
The model, and Tweed Forum Director Prof. Chris Spray, at the Peebles Agricultural Show