Artikkelit jotka sisältää sanan 'transformed mires'
Metsien uudistaminen vanhoilla ojitusalueilla.
English title: Forest regeneration in old forest drainage areas.
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There are 150 000 hectares of mature stands and about 270 000 hectares of low-yielding stands in forest drainage areas in Finland. Most of them are on transforming or transformed peatlands. Conditions of these areas for forest regeneration differ from those of virgin and newly ditched peat-lands. The paper presents a review of studies in forest regeneration in old drainage areas. Also the needs for further research is discussed.
Keywords: Drainage, regeneration, transformed mires
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Saarinen,
The Finnish Forest Research Institute, Parkano Research Station, SF-39700 Parkano, Finland
Sähköposti:
ei.tietoa@nn.oo
Metsäojitettujen turvemaiden ravinnevaroista ja niiden riittävyydestä.
English title: On nutrient amounts and their sufficiency for wood production on drained peatlands.
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Generally in peat soils but especially in the old forest drainage areas the amount of potassium is low compared with that of nitrogen (ab. 1:100) and phosphorus (ab. 1:4). However, the amount of potassium fixed in tree biomass is about four times the amount of phosphorus. When estimating the future sufficiency of potassium for wood production in old drainage areas after one rotation (drainage 75 years earlier), it seems that on nitrogen-rich deep-peat pine mires potassium stores become exhausted during the second rotation after drainage if potassium is not applied.
Key words: Fertilization, peat nutrient stores, potassium, transformed mires
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Kaunisto,
The Finnish Forest Research Institute, Parkano Research Station, SF-39700 Parkano, Finland
Sähköposti:
ei.tietoa@nn.oo
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Ruuhijärvi R.,
(1974)
On the cranberry yields on peatlands
Suo - Mires and peat
vol. 25
no. 2
artikkeli 9423
(poista)
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Mäkinen Y.,
(1974)
On the cultivation of cloudberry
Suo - Mires and peat
vol. 25
no. 3-4
artikkeli 9429
(poista)
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Bosse U.,
Frenzel P.
(2001)
CH4 emissions from a West Siberian mire
Suo - Mires and peat
vol. 52
no. 3-4
artikkeli 9816
(poista)
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Haahti K.,
Koivusalo H.
et al.
(2012)
Factors affecting the spatial variability of wat..
Suo - Mires and peat
vol. 63
no. 3-4
artikkeli 9883
(poista)
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Päivänen J.,
(2018)
Suo - Mires and peat
vol. 68
no. 2-3
artikkeli 10116
(poista)
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Lindholm T.,
Heikkilä R.
et al.
(2020)
Mire ecosystem studies in Finland and in Russia ..
Suo - Mires and peat
vol. 70
no. 2-3
artikkeli 10320
(poista)
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