Current issue: 54(1)

Under compilation: 54(2)

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 'selective cutting'.

Category: Research article

article id 406, category Research article
Bernt-Håvard Øyen, Petter Nilsen. (2004). Growth and recruitment after mountain forest selective cutting in irregular spruce forest. A case study in Northern Norway. Silva Fennica vol. 38 no. 4 article id 406. https://doi.org/10.14214/sf.406
During the last thirty years the interest for the use of selective cutting in the sub-alpine spruce forests of Norway has increased. However, there have been very few investigations on the post harvesting development after such cuttings. Four plots in irregular Norway spruce (Picea abies (L.) Karsten) dominated forests on semi-fertile sites in Northern Norway have been the subjects of a case study. We performed a reconstruction of the stand development by means of biometric assessments and ring widths measurements of all standing trees. Tree ages, stand structure, growth and recruitment were examined. Even though a hypothetical reverse J-curve for the present diameter distribution was identified, the four plots were even-aged. Growth reactions indicate that most of the present sawtimber trees were established after heavy dimension cuttings in the late 19th century. The recruitment situation is characterized as satisfying in one of four plots. The post harvesting mean volume increment on the plots have been about two thirds of the potential yield estimated from site indices and maximum mean annual increment in regular stands. Managing strategies for irregular spruce forest stands are briefly discussed.
  • Øyen, Norwegian Forest Research Institute-Bergen, Fanaflaten 4, N-5244 Fana, Bergen, Norway ORCID ID:E-mail: bernt-havard.oyen@skogforsk.no (email)
  • Nilsen, Norwegian Forest Research Institute-Bergen, Fanaflaten 4, N-5244 Fana, Bergen, Norway ORCID ID:E-mail:

Category: Article

article id 7189, category Article
Pentti Alho. (1968). Pohjois-Pohjanmaan metsien käytön kehitys ja sen vaikutus metsien tilaan. Acta Forestalia Fennica no. 89 article id 7189. https://doi.org/10.14214/aff.7189
English title: Utilization of forests in north Ostrobothnia and its effect on their condition.

The purpose of the present investigation was to study the extent of human interference with the forests of different epochs in the district of north Ostrobothnia in Northern Finland, and its effect on the condition of the forests.

The study revealed that the quantities of wood removed were not most detrimental to the condition of the forest; the regionally irregular loggings and the logging methods employed were the most harmful. The old forms of wood utilization, tar industry, shipbuilding, sawmill industry and timber exports, were characterized by timber selection. Public opinion considered it the only recognized cutting method long after the conditions had changed and silvicultural methods should have been used.

The spread and abandonment of selection cuttings are illustrated in the results of first National Forest Surveys in Finland. According to the first survey (1921–1924), nearly half of the loggings in the province of Oulu were based on selection, which spoiled and devastated 41% of the forests. In the 1930s one-fifth of the North Ostrobothnian forests were weakened by selection cuttings, in 1960s the figure was 6%. The article also summarises the extent of tar and pitch production, sawmill industry, shipbuilding and household wood consumption of wood in the area.

The PDF includes a summary in English

  • Alho, ORCID ID:E-mail:

Register
Click this link to register for Silva Fennica submission and tracking system.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content
Your selected articles

Committee on Publication Ethics A Trusted Community-Governed Archive