The Berwyn and South Clwyd Mountains and Migneint-Arenig-Dduallt SACs contain the two largest areas of blanket bog in Wales. Some of the highest quality active blanket bog across Wales is found within these mountains.
However, large parts of both SACs are seriously damaged because of past anthropogenic activities (eg afforestation, drainage) and by ongoing management practices (eg grazing, burning). The greatest threats to the blanket bog in these areas are the extensive networks of drains and forestry plantations within or adjacent to the SAC boundaries. The management activities affect the water table and natural vegetation leading to increased erosion.
Identifying this as a significant threat to the nature reserve at Lake Vyrnwy, the RSPB facilitated initial meetings and attracted match funding. This project has enabled the project partners to work towards EU Habitats Directive, UK BAP and Welsh Assembly Government Environment Strategy for Wales targets for blanket bog condition.
In addition to improving biodiversity, blanket bog restoration provides a large number of extra services. These include improving water quality, reducing run-off rates which may impact on lowland flooding, farming, carbon storage and sequestration, education and recreation.