Filling in the Ditches and Removing Trees
Restoration methods used in the Boral Peatland LIFE project
Restoring the hydrology
The peatlands in the project have been ditched and in some cases also forested for forestry purposes during the latter part of 20th century.
As a result the mires have gradually dried and tree cover has increased in the ditched mires and also in the neighbouring pristine parts of mire.
In total over 1 million metres of ditches were blocked during the project. The majority of the ditches was filled with the material from the banks and, if needed, also peat or wooden dams were built.
Furthermore, peat banks were formed to redirect the water flow to the areas between the ditches. The trees were cleared from the peatlands that were open mires before the ditching. During the project 20 000 m³ of trees in total were removed or considerably thinned from the areas.
Increasing the volume of deadwood and removing unnecessary forest roads
Several species are dependent on deadwood. The biodiversity of the mires and forest patches in the mires will be improved by creating deadwood: ring barking and felling of trees.
Forest roads were removed from two project areas (3,5 kilometres in total) in order to eliminate their disturbing and dissolving impact on mires and forests. The action included tearing the surface with bulldozer and spreading the road material off to the ditches along the road. This improves the sprouting conditions for the trees.