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Acta Forestalia Fennica vol. 27 no. 1 | 1923

Category : Article

article id 7094, category Article
S. E. Multamäki. (1923). Tutkimuksia ojitettujen turvemaiden metsänkasvusta. Acta Forestalia Fennica vol. 27 no. 1 article id 7094. https://doi.org/10.14214/aff.7094
English title: Studies on the growth of drained peatlands in Finland.
Original keywords: ojitus; mänty; Pinus sylvestris; läpimitan kasvu; pituuskasvu; turvekangas
English keywords: Scots pine; height growth; drained peatland; diameter growth; draining
Abstract | View details | Full text in PDF | Author Info

Only about 24,000 hectares of peatlands have been drained in the state lands by the 1921. The aim of this study was to define how much the growth of the trees in the drained peatland revives. Sample plots were measured in previously drained peatlands that had sufficient Scots pine (Pinus sylvestris L.) tree stand. A stem analysis was performed to one of the sample trees. The evenness of the stands was dependent on how evenly the peatlands had dried when the stand was regenerated. Thus, the sample stands were not always fully stocked. However, they had capacity to develop towards evenly structured forests as the peatlands continued to dry further. The diameter and height growth of the dried peatlands have corresponded the similar stands in mineral soil sites. In trees that have grown stunted in the peatlands, the diameter growth seems to increase faster than the height growth. The volume growth is slightly smaller than in the similar mineral soil sites due to less favorable stem form. After the draining, the roots of the trees continued to grow from the old branches of root, but start then to form new roots. When the ground water level drops, the root layer grows deeper.

The PDF includes a summary in German.

  • Multamäki, E-mail: sm@mm.unknown (email)

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