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Peitsa Mikola (email)

Turvetuotannosta vapautuvan maan metsittäminen.

Mikola P. (1975). Turvetuotannosta vapautuvan maan metsittäminen. Silva Fennica vol. 9 no. 2 article id 4920. https://doi.org/10.14214/sf.a14776

English title: Afforestation of bogs after industrial exploitation of peat


Peat industry is rapidly expanding in Finland. Consequently, during next decades peat will be removed from thousands of hectares. Because timber production probably is the most rational use of this area after the peat production has ended, some experiments of afforestation of such areas have already been conducted. This article reports results of two experiments which were started in Kihniö, Western Finland, in 1953 and 1964.

In the first experiment fertilization with wood ash proved very effective whereas seeding and planting without fertilization resulted in almost complete failure. In the second experiment, interplanting with grey alder (Alnus glutinosa L. Gaertn.) greatly promoted the growth of Scots pine (Pinus sylvestris L.). The effect of slight fertilization lasted a few years only. The reasons for the remarkable effect of alder need further research. Although alder is known as a nitrogen-fixing plant, its beneficial effect was most clearly seen in the K and P contents of pine needles. Inoculation with mycorrhizal fungi was beneficial but not necessary. Experiments hitherto show that afforestation of bogs after peat removal is possible although some additional measures like fertilization or interplanting with alder may be needed.

The PDF includes a summary in English.

Original keywords
mänty; metsitys; lannoitus; suojapuusto; turvetuotanto; jälkikäyttö; tuhka; tervaleppä; suonpohja

English keywords
Pinus sylvestris; fertilization; afforestation; Scots pine; Alnus glutinosa; alder; peat production; after-use; ash

Published in 1975

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Available at https://doi.org/10.14214/sf.a14776 | Download PDF

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