Artikkelit jotka sisältää sanan 'raised bogs'
Latvian suot.
English title: Mires in Latvia.
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Both minerotrophic (fens and transitional mires) and ombrotrophic (raised bogs) mires
occur in Latvia. Distribution of mires and diversity of mire vegetation are determined
by geology of area, origin of mires and climatic differences between coastal and continental
parts of Latvia. Fens started to develop in the early Holocene in the Preboreal
10 000 years BP. Later, during the Atlantic many fens transformed into transitional
mires and gradually into raised bogs. Today Latvian mires are represented by all these
types and they cover 4.9% of the country. Mires are protected in the North Vidzeme
Biosphere Reserve, National Parks (Slitere, Kemeri and Gauja), Strict Nature Reserves
(TeiEi, Krustkalni and Gripi), Nature parks and 140 nature reserves, as well as in protected
landscape areas.
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Pakalne,
Department of Botany and Ecology, university of Latvia, Kronvalda Boulevard 4, LV-1586, Riga, Latvia
Sähköposti:
ei.tietoa@nn.oo
- Kalnina, Sähköposti: ei.tietoa@nn.oo
Development of the Hautes-Fagnes peat bogs (Belgium): new perspectives using ground-penetrating radar.
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A 800 ha area of drained peatlands in the Hautes-Fagnes (Belgium) was surveyed by means of a ground-penetrating radar and a global positioning system.The survey pro vided very accurate information about the subsurface relief and the thickness and extent of the peat deposit, as well as stratigraphical information and suggestions of possible links between subsurface, hydrology and present vegetation.
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Wastiaux,
Université de Liège, Station scientifique des Hautes-Fagnes, rue de Botrange, 137, B-4950 Robertville, Belgium
Sähköposti:
ei.tietoa@nn.oo
- Halleux, Sähköposti: ei.tietoa@nn.oo
- Scumacker, Sähköposti: ei.tietoa@nn.oo
- Streel, Sähköposti: ei.tietoa@nn.oo
- Jacqmotte, Sähköposti: ei.tietoa@nn.oo
Irlannin suot ja niiden suojelu.
English title: Irish mires and their conservation.
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Originally over 17 per cent of the land area of Ireland was covered by mires. The Irish and Scotch occurrences of blanket bogs are among the most important in the world. There have also been excellent raised bog areas especially in the low-lying central plateau of Ireland. Due to turf burning, peat extraction and drying of peatlands during hundreds of years, the occurrence of mires in their natural state is becoming rare. Only some 100 000 hectares of scientifically and conservationally valuable peatlands are remaining, which is less than 10 per cent of the total peatland area of the country. Increasing international and national pressures for mire conservation have forced the Irish government to define goals for national mire conservation. According to the programme, 10 000 ha of raised bogs (3.2% of the original raised bog areas) and 40 000 ha of blanket bogs (5.2% of the original blanket bog areas), as well as a couple of thousand hectares of the remnants of the rich open fens are to be preserved. Yet, there are not adequate preservation resources available. Only one-third of the mire protection goals have been achieved.
Keywords: Blanket bogs, Ireland, raised bogs
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Salminen,
Ministry of Environment, P.O. Box 399, SF-00121 Helsinki, Finland
Sähköposti:
ei.tietoa@nn.oo
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