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Silva Fennica 1926-1997
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Acta Forestalia Fennica
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Articles containing the keyword 'Myrtillus type'

Category: Article

article id 5318, category Article
Tapio Lindholm, Harri Vasander. (1987). Vegetation and stand development of mesic forest after prescribed burning. Silva Fennica vol. 21 no. 3 article id 5318. https://doi.org/10.14214/sf.a15475
Keywords: Pinus sylvestris; succession; forest types; Myrtillus type; controlled burning; prescibed burning; boreal zone
Abstract | View details | Full text in PDF | Author Info

This study deals with the succession of vegetation and tree stand in 16 mesic Myrtillus site type Scots pine (Pinus sylvestris L.) plantations after prescribed burning in Evo, Southern Finland. The oldest tree stands studied were about 30-year-old. The growth of trees followed the height index of Myrtillus type. The vegetation was first mesic, dominated by grasses and herbs, turning more xeric after four years. This change was accelerated by treatment with herbicides. After the closure of tree stand, vegetation became more characteristic of forest vegetation, but pioneer species and composition disappeared slowly. The basic characters of vegetation succession could be clearly described by DCA ordination and TWINSPAN classification. The study confirmed that Myrtillus type has succession phases which are typical for each age phases as Cajander’s forest site type theory has proposed. However, differences in primary and secondary site factors have their own effects on the vegetation of the succession phases.

The PDF includes an abstract in Finnish.

  • Lindholm, E-mail: tl@mm.unknown (email)
  • Vasander, E-mail: hv@mm.unknown
article id 5201, category Article
Jussi Kuusipalo. (1983). Distribution of vegetation on mesic forest sites in relation to some characteristics of the tree stand and soil fertility. Silva Fennica vol. 17 no. 4 article id 5201. https://doi.org/10.14214/sf.a15184
Keywords: Finland; ground vegetation; indicator species; fertility; forest types; forest site classification; TWINSPAN; Oxalis-Myrtillus type; Myrtillus type; tree stand characteristics
Abstract | View details | Full text in PDF | Author Info

Vegetation data collected from a random sample of mature forest stands representing mesic upland forest sites in Southern Finland were analysed and classified using two-way indicator species analysis (TWINSPAN). The variation of some characteristics of the tree stand and soil fertility between the produced vegetation units were analysed statistically.

Both the species list and the sample list arranged by TWINSPAN reflects the overall site fertility considerably well. The results are in agreement with the main division of mesic forest sites in the Finnish forest site type classification: vegetation units which can be assigned to the Oxalis-Myrtillus site type are clearly separated from the remaining units, and the overall site fertility indicates a statistically significant difference. The within-type variation in the vegetation composition in the Oxalis-Myrtillus site type reflects the variation in site fertility, whereas the within-type variation in the Myrtillus site type is mainly caused by the tree stand factor.

The PDF includes a summary in Finnish.

  • Kuusipalo, E-mail: jk@mm.unknown (email)
article id 4558, category Article
Olli Heikinheimo. (1939). Kokemuksia paksusammaltyypin metsien käsittelystä. Silva Fennica vol. no. 52 article id 4558. https://doi.org/10.14214/sf.a13965
English title: Experiences in forest management of Hylocomnium-Myrtillus type forests in Northern Finland.
Original keywords: hakkuut; metsänhoito; metsäopetus; metsänhoitajien jatkokurssit; jatkokoulutus; metsänuudistaminen; paksusammalkuusikko; Peräpohjola; Lappi; siementuotanto
English keywords: Norway spruce; Picea abies; regeneration; Lapland; seed production; fellings; forest education; professional development courses; Hylocomnium-Myrtillus type
Abstract | View details | Full text in PDF | Author Info

Silva Fennica issue 52 includes presentations held in professional development courses, arranged for foresters working in public administration in 1938. The presentations focus on practical issues in forest management and administration, especially in regional level. The education was arranged by Forest Service.

This presentation describes a study of forest management practices suitable for in Hylocomnium-Myrtillus site type forests, typical for Northern Finland. A special problem for the forest site type is poor regeneration due weak seed production of Norway spruce (Picea abies L. Karst.) and thick moss layer.

  • Heikinheimo, E-mail: oh@mm.unknown (email)

Category: Article

article id 7490, category Article
Valter Keltikangas. (1959). Suomalaisista seinäsammaltyypeistä ja niiden asemasta Cajanderin luokitusjärjestelmässä. Silva Fennica vol. 69 no. 2 article id 7490. https://doi.org/10.14214/aff.7490
English title: Finnish feather-moss types and their position in Cajander’s forest site classification .
Original keywords: paksusammalkuusikko; suotyypit; mustikkatyyppi; seinäsammaltyyppi; HMT; Hylocomnium-Myrtillus-tyyppi
English keywords: Norway spruce; Picea abies; Hylocomnium-Myrtillus type; peatland types; Myrtillus-type; thick-moss type
Abstract | View details | Full text in PDF | Author Info

Since Finnish professor A.K. Cajander published his theory on forest types, there have been discussion and contradictory studies on certain forest types. This paper is a litterature review on the thick-moss type in Northern Finland and its parallel types in Kainuu and Southern Finland. First, the principles of Cajander’s theory on forest types is described and discussed. It is concluded that Cajander has described forest site types as their common, genuine variants. Borderline variants have been excluded from the description. 

Second, the North Finnish thick-moss type (Hylocomnium-Myrtillus type, HMT) and its position in Cajander’s system is discussed. Concepts of this forest type have varied considerably, and it has been argued that the type does not fit Cajander’s system very well, as it arises as a result of the invasion of other forest types by Norway spruce (Picea abies (L.) Karst.) with consequent degeneration of the site.  

The writer concludes findings of the results of the previous studies about MHT and its relations to the Myrtillus type. Cajander in his system included the thick-moss type in the moist upland forests as a type whose vegetation is less exacting than that of the Myrtillus type. This position seems to be the right one. Some factors point out the moist nature of HMT: the ability of Norway spruce to compete, a relatively high persipitation, the humidity of the climate in general and the rather poor water percolation capacity of the moraine soil. The HMT sites are relatively poor. It is stated that the opinion that the thick-moss type is secondary state of development of the Myrtillus type has no plant sociological, ecological, mensurational or silvicultural foundation. The type is probably Finland's most dynamic forest type, but in the natural forest its dynamics are confined to such changes as are permitted within the same forest type. HMT must be described as three series of plant association types, which differ from another to some extent. 

The PDF includes a summary in English. 

  • Keltikangas, E-mail: vk@mm.unknown (email)

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