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Metsätieteen aikakauskirja Dissertationes Forestales Suo - Mires and Peat
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Full text of this article is only available in PDF format.

P. Kokkonen (email)

Tutkimuksia viemärien kuntoon vaikuttavista seikoista

Kokkonen P. (1923). Tutkimuksia viemärien kuntoon vaikuttavista seikoista. Acta Forestalia Fennica vol. 27 no. 3 article id 7096. https://doi.org/10.14214/aff.7096

English title: Studies on the factors affecting the condition of forest drainage system

Abstract

Approximately 320,000 hectares of peatlands and paludified lands had been drained for agriculture and forestry purposes in Finland by 1920. The ditch network was not optimal in the early drained areas, and the condition of the ditches declined over time. In this study, the condition of drainage system, and the natural processes that affect them, was inspected in 18 drained peatlands.

Several processes can reduce of the size of the ditches. The process of crumbling of soil in the sides of the diches can last up to three years after the draining. Erosion of the main drains, caused by water flow can, however, continue longer. The ditches also sink when the peat dries. Soil frost can affect the ditches, but as the vegetation grows its effect gradually decreases. The vegetation that grows in the ditches may finally block the ditch completely.

The PDF includes a summary in English.

Original keywords
ojitus; suo; metsäojitus; oja; ojaverkosto

English keywords
peatland; drainage system; draining of peatland; ditch

Published in 1923

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Available at https://doi.org/10.14214/aff.7096 | Download PDF

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