Skip Navigation

Forestry 1983 56(2):109-120; doi:10.1093/forestry/56.2.109
© 1983 by Institute of Chartered Foresters
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by SANVILL, P. S.
Right arrow Articles by SANDELS, A. J.
Right arrow Search for Related Content
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

The Influence of Early Respacing on the Wood Density of Sitka Spruce

P. S. SANVILL and A. J. SANDELS

Department of Forestry, University of Oxford

Wood density at breast height in a 32-year-old Sitka spruce respacing experiment in Northern Ireland ranged from 0.42 g cm–3 in the narrowest spacing to 0.38 g cm–3 in the widest. Estimation of variance components showed that only 12 per cent of the variation in wood density could be ascribed to crop spacing and 63 per cent to the differences between trees within spacings. Regressions of wood density on the basal area for each spacing indicated extremely weak relationships, the highest r2 not exceeding 0.25. It is concluded that the possibilities of manipulating wood density through spacing and thinning are insignificant in comparison to the potential from breeding or vegetatively propagating trees with desirable characteristics.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.