Silva Fennica is an open access journal published by the Finnish Society of Forest Science (hereafter “Publisher”). All articles published in Silva Fennica (hereinafter, the “Articles”) shall be publicly available on the Internet according to the Creative Commons CC BY-SA 4.0 attribution - share alike licence. The Author retains the copyright of his/her Article. The Publisher has the right to publish the Articles and keep them available for the public in any current or future publishing format. Publisher may also transfer publishing rights and/or maintenance of the Silva Fennica website to others who respect the CC BY-SA 4.0 licence.