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Articles by Eino Mälkönen

Category: Article

article id 5234, category Article
Eino Mälkönen, Eero Paavilainen. (1985). Hydrological amelioration and forest practice on drained peatlands. Silva Fennica vol. 19 no. 2 article id 5234. https://doi.org/10.14214/sf.a15413
Keywords: drainage; peatlands; peatland forestry; hydrology; forest research; bibligraphies
Abstract | View details | Full text in PDF | Author Info

This bibliography consists of monographs, papers published in periodicals and journals and collections of scientific papers from research and educational institutes, and transactions from scientific congresses, seminars, symposia and meetings.

The publications have been divided into three basic sections. In each section the publications are listed in alphabetical order by the author(s) or title. The total number of the titles in this bibliography is 465.

  • Mälkönen, E-mail:
  • Paavilainen, E-mail:
article id 5223, category Article
Eino Mälkönen, Finnish Society of Forest Science. (1984). Metsäntutkimus metsätalouden tietopohjana. Silva Fennica vol. 18 no. 4 article id 5223. https://doi.org/10.14214/sf.a15402
English title: The role of forestry research in providing a scientific basis for practical forestry.
Original keywords: metsätieteet; metsäntutkimus; metsätalous; Suomi
English keywords: forest management; forestry; Finland; forest research; forest sciences
Abstract | View details | Full text in PDF | Author Info

The Society of Forestry in Finland (now the Finnish Society of Forest Science) arranged on 26th April 1984 a Forestry Science Day centred on the theme ”The role of Forestry Research in Providing a Scientific Basis for Practical Forestry”. Specialists in forestry and forest policy reviewed the role, present situation and future tasks of forest research from different points of view, in their papers. This article includes the talks given in the event in Finnish and an English summary.

  • Mälkönen, E-mail:
  • Finnish Society of Forest Science, E-mail:
article id 5157, category Article
Eino Mälkönen, Vesa Aro-Heinilä, Seppo Kellomäki. (1982). Lannoituksen ja kastelun vaikutus männikön pintakasvillisuuteen. Silva Fennica vol. 16 no. 1 article id 5157. https://doi.org/10.14214/sf.a15072
English title: Effect of fertilization and irrigation on the ground vegetation of a Scots pine stand.
Original keywords: mänty; lannoitus; kastelu; aluskasvillisuus; peittävyys; heinät; varvut; kanerva
English keywords: Pinus sylvestris; fertilization; irrigation; Scots pine; ground vegetation; dwarf shrubs; grasses; Calluna vulgaris
Abstract | View details | Full text in PDF | Author Info

A mature Scots pine (Pinus sylvestris L.) stand growing on a site of the Vaccinium type in Southern Finland was fertilized with nitrogen-rich NPK fertilizer at a level of 150 kg pure nitrogen per hectare. The sample plots were also irrigated during four growing seasons. The total amount of irrigation during this period was 1,200 mm. Fertilization alone increased the coverage of grasses and dwarf shrubs. The culmination of the increase occurred during the second growing season after the start of the treatment. The rapid effect of irrigation on the coverage of ground vegetation was not so strong as that of fertilization. It was concluded on the basis of the developed growth model that the coverage of dwarf shrubs, especially Calluna vulgaris, was, however, increased with the fertilization treatment for a prolonged period. Fertilization and irrigation had no visible effect on the coverage of lichens and mosses.

The PDF includes a summary in Finnish.

  • Mälkönen, E-mail: em@mm.unknown (email)
  • Aro-Heinilä, E-mail: va@mm.unknown
  • Kellomäki, E-mail: sk@mm.unknown
article id 5055, category Article
Eino Mälkönen. (1979). Uusi opas tutkimusraportin laatijoille. Silva Fennica vol. 13 no. 4 article id 5055. https://doi.org/10.14214/sf.a14912
English title: Book review: Tutkimusraportin laadinnan perusteita.
Keywords: book review
Abstract | View details | Full text in PDF | Author Info

This article is a book review on the Finnish book ’Tutkimusraportin laadinnan perusteita’ by professor Matti Kärkkäinen. The book handles on priciples on writing a research report.

  • Mälkönen, E-mail: em@mm.unknown (email)
article id 4944, category Article
Eino Mälkönen. (1976). Effect of whole-tree harvesting on soil fertility. Silva Fennica vol. 10 no. 3 article id 4944. https://doi.org/10.14214/sf.a14790
Keywords: logging; thinnings; nutrient losses; whole-tree harvesting
Abstract | View details | Full text in PDF | Author Info

This paper analyses the nutrient loses caused by whole-tree harvesting on the basis of the literature data. It has been considered that traditional stemwood harvesting does not lead to impoverishment of the soil because the nutrient content of the wood is quite low. The nutrient loss occurring in connection with heavy thinnings and whole-tree harvesting has been considered so great that it has to be compensated by fertilizer application. In comparison with harvesting unbarked stem timber, whole-tree harvesting has been found to increase the nutrient loss at the stage of final cutting as follows: N2 to 4 times, P 2 to 5 times, K 1.5 to 3.5 times and Ca 1.5 to 2.5 times. Depending on the conditions prevailing on the site, any one of these nutrients may be the limiting factor for tree growth during the next tree generation

The PDF includes a summary in Finnish.

  • Mälkönen, E-mail: em@mm.unknown (email)

Category: Research article

article id 590, category Research article
Anna Saarsalmi, Eino Mälkönen, Sirpa Piirainen. (2001). Effects of wood ash fertilization on forest soil chemical properties. Silva Fennica vol. 35 no. 3 article id 590. https://doi.org/10.14214/sf.590
Keywords: Pinus sylvestris; wood ash; Picea abies; nutrients; acidity; neutralization; pH
Abstract | View details | Full text in PDF | Author Info
The effects of wood ash fertilization on soil chemical properties were studied in three young Scots pine (Pinus sylvestris L.) plantations and a Norway spruce (Picea abies (L.) Karst.) plantation with different site fertility in southern Finland. The dose of 3 t ha–1 of loose wood ash was applied to 4 replicate plots (25 x 25 m) at each experiment. Humus layer and mineral soil samples were taken before the treatment and 7 and 16 years after wood ash application. Results showed that neutralization as well as fertilization effects of wood ash on forest soil were of long duration. An ash-induced pH increase of 0.6–1.0 pH units and exchangeable acidity (EA) decrease of 58–83% were detected in the humus layer 16 years after wood ash application. The decrease in acidity was most pronounced on the Calluna site with initially the lowest pH and highest EA. In the mineral soil the increase in pH was observed later than in the humus layer. After 16 years, the mineral soil pH was increased (0.2–0.3 pH units) on the Vaccinium and Myrtillus sites. A corresponding and in most cases a significant increase in the extractable Ca and Mg concentrations was detected in both the humus layer and in the mineral soil. Wood ash significantly increased the effective cation exchange capacity (CECe) and base saturation (BS) but decreased the concentration of exchangeable Al in both soil layers on all the sites. No response of N availability to wood ash application could be found.
  • Saarsalmi, Finnish Forest Research Institute, Vantaa Research Centre, P.O. Box 18, FIN-01301 Vantaa, Finland E-mail: anna.saarsalmi@metla.fi (email)
  • Mälkönen, Finnish Forest Research Institute, Vantaa Research Centre, P.O. Box 18, FIN-01301 Vantaa, Finland E-mail: em@nn.fi
  • Piirainen, Finnish Forest Research Institute, Joensuu Research Station, P.O. Box 68, FIN-80101 Joensuu, Finland E-mail: sp@nn.fi

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