Current issue: 53(3)

Under compilation: 53(4)

Impact factor 1.683
5-year impact factor 1.950
Silva Fennica 1926-1997
1990-1997
1980-1989
1970-1979
1960-1969
Acta Forestalia Fennica
1953-1968
1933-1952
1913-1932

Articles containing the keyword 'Yhdysvallat'.

Category: Article

article id 7285, category Article
Eino Saari. (1934). Piirteitä Yhdysvaltain metsätalouspolitiikasta. Acta Forestalia Fennica vol. 40 no. 8 article id 7285. https://doi.org/10.14214/aff.7285
English title: Observations on the forest policy of the United States.

The article is a review on the forest resources, forestry and forest policy in the United States based on the publication A National Plan for American Forestry, published in 1933. The earlier estimates of forest resources of America have been proved to be exaggerated. The annual drain had been estimated to be twice the annual growth of the forests. The author disagrees with the estimates, and argues that the growth, if calculated with the American method, do not give right figures of the sustainable fellings.

The situation is better than estimated. The national plan of forestry suggests that the public ownership of the forests should be increased to 60% from the present 20%. In addition, there are plans to introduce public control of private forests in the American forestry so that fellings do not risk the sustained yield of the forests. Rapid depletion of the saw timber resources in the North-Eastern and Lake States, and the high lumber prices lead to the assumption that the timber resources of the United States are in decline. The following decrease in lumber consumption lead to surplus of sawmill capacity, and to increasing competition in the sector.

The PDF includes a summary in English.

  • Saari, ORCID ID:E-mail:
article id 5014, category Article
Matti Nuorteva. (1979). Punapuiden suojeluongelmia Kaliforniassa. Silva Fennica vol. 13 no. 1 article id 5014. https://doi.org/10.14214/sf.a14868
English title: Preservation problems of redwoods in California.

The paper deals with the problems of the preservation of the redwood groves (Sequioia sempervirens (D. Don) Endl. and Sequoiadendron giganteum (Lindl.) J. Buchholz) in California. The activity to protect these groves from flood and fire may finally lead to dying of these long-lived trees. A program to use prescribed burning as a tool for the management of natural ecosystem has been started.

The PDF includes a summary in English.

  • Nuorteva, ORCID ID:E-mail:
article id 4911, category Article
Leo J. Salo. (1974). Wilderness-alueet Yhdysvaltain kansallispuistoissa. Silva Fennica vol. 8 no. 4 article id 4911. https://doi.org/10.14214/sf.a14755
English title: Wilderness areas in American national parks.

The paper deals with the establishment and present situation of the national parks in USA. The aim of the establishment of national parks was, on the one hand, to preserve part of the natural environment, and on the other hand, to reserve areas suitable for recreation. In addition to the national parks, or rather within them, so-called wilderness areas have been established since 1964. In these areas even such measures as fire and insect control are avoided to the greatest extent possible. The use of the wilderness areas for recreation is restricted to foot and horse trails as well as watercourses, all motorized transportation being prohibited. Campgrounds are provided with only the most primitive comforts. So far only a few wilderness areas have been established in the national parks, but there are tens of suitable areas that have been reserved for this purpose.

The PDF includes a summary in English.

  • Salo, ORCID ID:E-mail:

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