Title: Ingen diastitel
1Rudbøl 28-29 september
Restoring Raised Bogs in Denmark RERABOG
www.raisedbogs.dk
2Raised Bogs ca. 1920
3Raised Bogs 2000
4Project areas
5Facts about the project
- 7 project areas - 839,9 ha
- Raise the water level on 361 ha
- Clear 270,7 ha of encroachment (trees and
bushes). Establish conditions for development of
active raised bog vegetation on 398 ha degraded
raised bogs. - Test and develop methods for restoring raised
bogs in Denmark. - Dissemination of results and methods.
- Costs 2.947.471 (22 mio DKK 27 mio SEK)
- 2005 - 2009
6Just a few examples.
- Clearing of plantation and regrowth.
- Closing of drains and ditches
- Testing methods
- Revegetation
- Monitoring
- Reports
7Svanemosen.Clearing of plantation and
regrowthClosing of dítches
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10Store Økssø.Clearing of plantation Closing of
dítches
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14Methods used for closing drains and ditches
- Full closing of ditches
- Sheet piling of various types (plastic, plywood
and iron). - Dams made of turf/peat.
- Combinations of dams and piling
- Breaking of drainage tubes by excavator.
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21New dam
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25Examples
- Clearing of plantation and regrowth.
- Closing of drains and ditches
- Testing methods.
- Revegetation.
- Monitoring
- Reports
26Examples
- Clearing of plantation and regrowth.
- Closing of drains and ditches
- Testing methods.
- Revegetation.
- Monitoring
- Reports
27Inspiration from Canadian methods, but on
mineralized dark peat. Questions How do you make
sure that the Sphagnum fragments are in contact
with the peat? Must the layer of needles and
twigs be removed? Or can the needles and twigs
provide a favourable microclimate? Will a cover
of straw have a favourable effect?
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31Examples
- Clearing of plantation and regrowth.
- Closing of drains and ditches
- Testing methods
- Revegetation
- Monitoring
- Reports
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33NW
SE
34Reports
www.raisedbogs.dk
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37SLUT
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