Current issue: 58(1)

Under compilation: 58(2)

Scopus CiteScore 2021: 2.8
Scopus ranking of open access forestry journals: 8th
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Silva Fennica 1926-1997
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Acta Forestalia Fennica
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Acta Forestalia Fennica vol. 31 | 1926

Category : Article

article id 7205, category Article
J. W. Lindeberg. (1926). On theory of strip-survey. Acta Forestalia Fennica vol. 31 no. 6 article id 7205. https://doi.org/10.14214/aff.7205
Keywords: ; strip-survey; method development; standard error
Abstract | View details | Full text in PDF | Author Info

There has been earlier publications on calculating the standard error of the strips. However, they have been calculated with very small amount of data. In the article the confidence of standard error will be examined throughout. The article is a response to the article written by A. Langsaeter on the theme.  

  • Lindeberg, E-mail: jl@mm.unknown (email)
article id 7204, category Article
Erik Lönnroth. (1927). On volume formulas. Acta Forestalia Fennica vol. 31 no. 5 article id 7204. https://doi.org/10.14214/aff.7204
Keywords: stem volume; methodology; measuring; formula
Abstract | View details | Full text in PDF | Author Info

Volume formulas have been developed already for long time but there are still some questions to be solved. The volume of a stem can be calculated based on measurements of diameter on various heights or based on mathematic formula. The article presents the formula development for that. The study is based on measurements of 24 pine stands.   

The results of the new formula can be seen satisfactory with the relatively small data of this study. Coincidentally the formally best mean solution of the here compared volume calculation formulas was the one based on Denzin’s formula. There the deviation from total mean is almost zero.   

  • Lönnroth, E-mail: el@mm.unknown (email)
article id 7203, category Article
I. Lassila. (1926). Puun mekaanillis-teknillisten ominaisuuksien tutkimuksesta, sen tuloksista ja tehtävistä. Acta Forestalia Fennica vol. 31 no. 4 article id 7203. https://doi.org/10.14214/aff.7203
English title: Research on mechanic technical properties of wood.
Original keywords: puuaine; puun rakenne; lujuus; puun mekaaniset ominaisuudet
English keywords: mechanical strength; technical properties of wood
Abstract | View details | Full text in PDF | Author Info

The article includes a detailed review on the technical properties of wood. The weight, water content, strength and conductivity of the wood, and the factors affecting them are discussed. The mechanical and technical properties of wood are influenced, for instance, by tree species, age and part of the tree, geographical situation, site and growth conditions of the stand, anatomical structure of the wood, and temperature. The author summarizes the topics where further research should be addressed. For instance, the forest site types developed in Finland could be utilized in studies of the mechanic technical properties of wood.

The PDF includes a summary in English.

  • Lassila, E-mail: il@mm.unknown (email)
article id 7202, category Article
I. Lassila. (1926). Piirteitä sahan ja saharaamin alkukehityksestä. Acta Forestalia Fennica vol. 31 no. 3 article id 7202. https://doi.org/10.14214/aff.7202
English title: Features in the early development of saws and saw frames.
Original keywords: saha; saharaami; sahalaitteisto; kehäsaha
English keywords: sawmill; saw frame; equipment; saw equipment
Abstract | View details | Full text in PDF | Author Info

The article describes the evolution of sawmills, focusing on four parts: the frame and sliding devices, the fastening of the blade into the frame, appliances for fastening the timber, and feeding devices. The earlier equipment had adaptability that has been lost in the more developed equipment, because the raw materials have been too expensive and hard to acquire, among other things. It is remarked that many inventions of the sawmills have not been adopted in the actual equipment.

The PDF includes a summary in English.

  • Lassila, E-mail: il@mm.unknown (email)
article id 7201, category Article
Lauri Ilvessalo. (1926). Forest research work in Finland : the origins and development of forest research work and a review of the investigations carried out up to date. Acta Forestalia Fennica vol. 31 no. 2 article id 7201. https://doi.org/10.14214/aff.7201
Keywords: forest management; silviculture; forest technology; forest mensuration; forest research; history; The Finnish Society of Forest Science; Forest Research Institute
Abstract | View details | Full text in PDF | Author Info

The article is a review of forest research carried out in Finland. The article includes a short review of the origins of forest research in the country and the research institutions in the country. It describes the main studies in different fields of forest research, divided on biological and silvicultural research, forest mensuration and forest policy research, and research on forest utilization.  English translation of the article was published at the same time with an Finnish article. A need for an English summary of the forest research was realized, because the publications have mainly been written in Finnish or German.

  • Ilvessalo, E-mail: li@mm.unknown (email)
article id 7200, category Article
Lauri Ilvessalo. (1926). Metsätieteellinen tutkimustoiminta Suomessa : metsätieteellisen tutkimustoiminnan synty ja kehitys sekä yleiskatsaus toimitettuihin tutkimuksiin. Acta Forestalia Fennica vol. 31 no. 1 article id 7200. https://doi.org/10.14214/aff.7200
English title: Forest research in Finland: the origins and development of forest research and a review of the investigations carried out up to date.
Original keywords: metsäntutkimus; metsänhoito; Suomen Metsätieteellinen Seura; metsäntutkimuslaitos; metsäteknologia; metsien arviointi
English keywords: forest management; silviculture; forest technology; forest mensuration; forest research; history; The Finnish Society of Forest Science; Forest Research Institute
Abstract | View details | Full text in PDF | Author Info

The article is a review of forest research carried out in Finland. The article includes a short review of the origins of forest research in the country and the research institutions in the country. It describes the main studies in different fields of forest research, divided on biological and silvicultural research, forest mensuration and forest policy research, and research on forest utilization. An English translation of the article was published at the same time. A need for an English summary of the forest research was realized, because the publications have mainly been written in Finnish or German.

  • Ilvessalo, E-mail: li@mm.unknown (email)

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