Artikkelit jotka sisältää sanan 'peat deposit'
Physical properties of organic soil in Sto owe Mountains National Park (Poland).
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The aim of this work was to determine physical properties of organic soils developed in different sites of the mountain area of Stolowe Mountains National Park, Poland. The profiles with different botanical composition of peat were analysed and classified by types and species of peat. Peat, muck and peat-mud were identified (9 profiles) at chosen locations. Investigation showed that top plateau organic soils were developed on a sandy-loam or sand weathered sandstone base. Organic soils in valleys and slopes were developed on a loamy-silt or clay basement. Peat horizons developed according to different types of sites (mesotrophic and eutrophic, sometimes oligotrophic). Generally, these soils are ombrotrophic, i.e. fed by atmospheric water only. These soils were classified as Fibric Histosols and Terric Histosols. Organic soils within the main regions of the park were over-desiccated, with advancing muck-forming processes being noted.
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Bogacz,
Institute of Soil Science and Agricultural Environment Protection, Agricultural University of Wroc aw 50-357 Wroc aw, ul. Grunwaldzka 53, Poland
Sähköposti:
ei.tietoa@nn.oo
Turvesaannon arviointi suotyypin ja turpeen syvyyden perusteella.
English title: Estimation of peat yield of different peat deposit types.
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Preliminary regression models are produced for the estimation of dry peat yield (tons) per unit area (hectare) for different types of peat deposits with different peat thickness. The models are based on 6 500 peat samples obtained for bulk density measurements from 245 vertical peat profiles (70 virgin and drained peadands) in Finland. In general, the increase in the peat yield does not take place in 1:1 relationship with depth because average bulk density tends to decrease with peat deposit thickness. Fairly reliable estimates of the peat yield using depth and mire site type were obtained. R2 values for the eight models representing eight different groups of "mire site types" ranged from 86.0 to 95.3%.
Keywords: Bulk density, mire site types, peat deposits, peat resources
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Tolonen,
Department of Biology, University ofJoensuu, P.O. Box 111,SF-80101 Joensuu, Finland
Sähköposti:
ei.tietoa@nn.oo
- Ijäs, Sähköposti: ei.tietoa@nn.oo
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Ruuhijärvi R.,
(1974)
On the cranberry yields on peatlands
Suo - Mires and peat
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Mäkinen Y.,
(1974)
On the cultivation of cloudberry
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Bosse U.,
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(2001)
CH4 emissions from a West Siberian mire
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Haahti K.,
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Päivänen J.,
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Lindholm T.,
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Mire ecosystem studies in Finland and in Russia ..
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