Artikkelit jotka sisältää sanan 'organic soil'
Viljeltyjen turve- ja multamaiden pinta-ala ja alueellinen jakauma Suomessa.
English title: The area and distribution of cultivated organic soils in Finland.
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The area of cultivated organic soils, and their distribution in Finland were estimated.
The estimation was based on the soil classification data collected by three authorised
soil testing laboratories, and the statistics of the arable land area. The data was collected
in a five year period (1998-2002). During this period, over 90% of farms received
environmental EU supplement and had their soils analysed. Therefore, the reliability of
the estimation was now better than it used to be before Finland joined the European
Union. In the Finnish soil classification system, organic soils are divided into two classes
depending on their organic matter content. The area of organic soils with the organic
matter content of ≥40% (m/m) (i.e. peat) was 85000 ha, i.e. 3.8% of the arable area. The
area of organic soils with the organic matter content of 20-39.9% (m/m) and often with
a mineral subsoil, was 214 000 ha i.e. 9.7% of the arable area. Altogether, the area of
these soils was 300 000 ha i.e. 13.6% of the total arable area in Finland.
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Myllys,
Maa- ja elintarviketalouden tutkimuskeskus MTT, Maaperä ja ympäristö 31600 Jokioinen
Sähköposti:
ei.tietoa@nn.oo
- Sinkkonen, Sähköposti: ei.tietoa@nn.oo
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
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