Full text of this article is only available in PDF format.

O. J. Lukkala (email)

Lisä ortsteinikysymyksen valaisemiseksi

Lukkala O. J. (1920). Lisä ortsteinikysymyksen valaisemiseksi. Acta Forestalia Fennica vol. 16 no. 5 article id 7047. https://doi.org/10.14214/aff.7047

English title: Studies on the effect of ortstein on paludification

Abstract

No agreement has yet been reached about formation of podzols, and their distribution in Finland has not been studied. It is, however, known that most of the forest soils are leached. The compacted ortstein is relatively rare in Southern Finland, but common in the gravely soils in Lapland. This study focuses on whether ortstein formations facilitate paludification. The study is based on observations in drained peatlands in Toivakka and Multia. Ortstein can rarely be found under the actual peatlands. It is often formed in mineral soil threshold areas, where it can be up to one meter thick. The ortstein formation was stronger in poorer soil types. Also, it is compacted into a harder layer in gravely soils than in sandy soil. These formations seem to be caused by humus-rich water flowing from the peatlands.

The soil is not leached, and ortstein is not formed in wet, low-lying peatlands, and has, therefore, no role in their paludification. In drier peatlands, especially in slopes, an A horizon can be found. However, ortstein seems not to have a marked effect on paludification. When ortstein is formed in mineral soil threshold areas, their formation seems to be caused by water flow from the peatland. It may make the threshold area more compact, and thus further facilitate paludification.

The PDF includes a summary in German.

Original keywords
soistuminen; podsoli; ortstein

English keywords
paludification; podzol; ortstein

Published in 1920

Views 1115

Available at https://doi.org/10.14214/aff.7047 | Download PDF

Creative Commons License CC BY-SA 4.0

Register
Click this link to register to Silva Fennica.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Your search results
Lukkala O. J., (1939) Forest management of forests in drained peatland.. Silva Fennica vol. no. 52 article id 4567
Lukkala O. J., (1938) Afforestation of drained peatlands Silva Fennica vol. no. 46 article id 4530
Lukkala O. J., (1937) Peatlands’ suitability to draining Silva Fennica vol. no. 39 article id 4482
Lukkala O. J., (1942) Measurements of rainfall in different kinds of f.. Acta Forestalia Fennica vol. 50 no. 23 article id 7376
Lukkala O. J., (1934) The history of tree species in southwest Finland Acta Forestalia Fennica vol. 40 no. 18 article id 7295
Lukkala O. J., (1929) The thickness of peat bed and gradients of peatl.. Acta Forestalia Fennica vol. 34 no. 16 article id 7229
Lukkala O. J., (1920) Studies on the effect of ortstein on paludificat.. Acta Forestalia Fennica vol. 16 no. 5 article id 7047
Lukkala O. J., (1920) Studies on the relationship between the type of .. Acta Forestalia Fennica vol. 16 no. 3 article id 7045
Lukkala O. J., (1920) The silvicultural influences of collecting leaf .. Acta Forestalia Fennica vol. 16 no. 2 article id 7044
Lukkala O. J., (1920) Studies on stump layers in peatlands in Finland Acta Forestalia Fennica vol. 16 no. 1 article id 7043
Lukkala O. J., (1919) Studies on distribution of fertile lands in Savo.. Acta Forestalia Fennica vol. 9 no. 1 article id 7019