Create a national map of the areas where ‘natural’ flood mitigation measures (e.g. meandering, afforestation, drain blocking, restoring wetlands and washlands etc.) might be employed whilst minimising the impact on existing economic activities. The map would use topographic, land cover and soils data, coupled with agricultural and urban land use information, to rate the opportunity value. This could be extended by mapping the economic cost-benefit. The map should be made available for free online, for flood managers and community groups (e.g. local flood action groups, Rivers Trusts, Catchment Based Approach teams) to inform their approaches to land managers and implement schemes at the catchment scale. The map should also be used to identify areas where there would be further benefits (e.g, carbon storage and biodiversity).
Idea No. 334