To ask the Scottish Government what progress it is making in investigating the potential coexistence of re-wetting with continued agricultural activity, and whether any pilot partial re-wetting projects have been identified for investment of up to £1 million.
With partial rewetting, the water table in peatlands or peaty soils is held deeper underground than with full rewetting or restoration. In theory, this delivers a carbon benefit but also allows certain types of agriculture that may be limited by full rewetting to continue.
The Peatland Science and Technical Advisory Group have advised there may be some potential in lowland grassland systems and at the edges of some raised bogs where the use of ‘leaky dams’ may have a part to play in finer control of water table depth. However, significant areas of lowland agricultural peats are difficult to identify and map.
We have commissioned scientists at the James Hutton Institute to advise on the distribution of grassland on peat and on the relationship between water table depth and carbon emissions in peat grassland systems.
When complete, this will inform on-going work in government considering options for incorporating peatland protection, management and restoration within the new four-tier agricultural support framework.