Kaupo Kohv Tiitelleht - envir.ee...2013/09/24 · Kaupo Kohv Tiitelleht Soomaa NP, Kuresoo bog 2...
Transcript of Kaupo Kohv Tiitelleht - envir.ee...2013/09/24 · Kaupo Kohv Tiitelleht Soomaa NP, Kuresoo bog 2...
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Kuresoo bog restoration project in Soomaa NP
Kaupo Kohv
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2Soomaa NP, Kuresoo bog
Soomaa NP 39 640 ha
Kuresoo bog11 000 ha
Kuresoo restoration area (ca 60 ha)
First holistic restoration project of degraded bog communities in Estonia
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3The story of Kuresoo restoration project
2005 – idea was formulated by Estonian Fund for Nature (ELF)
2006 – 2007 – ELFs Interreg project produced detailed project for restoration activities
2010 – 2013 State Forest Management Centre implemented the project. Actions were funded by EU Regional Development Fund (ERF)
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4The story of Kuresoo restoration project
The aim – rehabilitate functional mire habitats. Restore active peat accumulation process.
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5Kuresoo bog restoration project
Area comprises transitional mire, treeless and treed raised bog; raised bog slope.
Drainage was established in 1971 for peat mining
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6Kuresoo bog restoration project
Condititions before the project
Waterlevel 40-50 below the ground;Residual peat layer up to 2,8 m;Peat accumulation was stopped,
Sphagnum cover was stohhastic and decreasing;
Vegetation was heavily influenced by drainage, forest cover and volume was increased.
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7Forest cover treatment
Cutting all trees (14,3 ha)Cutting trees higher than 3 m (12,7 ha)
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8Waterlogging
29 dams from logs, peat and geofabric with different constructions
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9Waterlogging
Dams on bog slope were not planned
Mistake appeared after planned dams were built!
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10Waterlogging
28 additional peat dams were added on the slope
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Peat mounds on ditchbanks
Peat mounds along ditchbanks had to be leveled totally or after 10m interval.
Was done on ditches inside the cutting treatments
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12Monitoring
Monitoring design and benchmark measurements were done by Mati Ilomets working group in 2007
Monitoring is based on transects
Repeated measurements are planned for 2014
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Results and problems 13
Work was finished 2013
Most of the dams are functioning properly. Some timber dams are not!
Reasons: extreme dry summer? vertical infiltration throug ditch bottom; infiltration through dams?
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Results and problems 14
Peat mounds on ditchbanks
Mounds were leveled, but they should have been pushed into the ditches!All the ditchbanks should have been cleared from trees and leveled.
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Results and problems 15
Peat cover is increasing
Final conclusions can be drawn after repeated measurements on monitoring transects.
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Costs 16
Planning Initial planning and benchmark measurements (ELF’s Interreg project) – 66 370 €Undating the project and additional planning (SFMC) - 2760 € (+VAT)SUM – 69130 €
Implementation Cutting treatments – 56457 € (+VAT)Digging, building dams etc – 77979 € (+VAT)SUM 134 436 €
TOTAL – 203 566 €
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Costs 17
Planning Initial planning and benchmark measurements (ELF’s Interreg project) – 66 370 €Undating the project and additional planning (SFMC) - 2760 € (+VAT)SUM – 69130 €
Implementation Cutting treatments – 56457 € (+VAT)Digging, building dams etc – 77979 € (+VAT)SUM 134 436 €
TOTAL – 203 566 €
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Income 18
Income from timber sales - 1333 m3 – 28 425 € (+VAT)