Download or read book Growth Responses in Individual Eastern White Pine Pinus Strobus L Trees Following Partial Cutting Treatments written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth Responses in Individual Eastern White Pine Pinus Strobus L Trees Following Partial Cutting Treatments written by Eddie Bevilacqua and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: White pine ('Pinus strobus' L.) growth following a partial cutting treatment was analyzed to assess the growth response of individual trees from three different crown classes to varying levels of local neighbourhood competitive interference. Trees from all crown classes, with an average age of 69 years, showed increased rates of diameter, basal area and volume growth following release. Only intermediate trees responded with increased height growth. Specific volume increment (SVI) proved superior to relative growth rate for assessing competition effects on size-dependent volume growth by virtue of its greater sensitivity to and better correlation with indices of competition. Significant differences in SVI among crown classes in both released and control treatments 23 years after release were observed. Released trees had increased levels of SVI for the first 15 years following treatment. The hypothesis of size symmetry in resource competition was rejected by virtue of the stronger relationship between SVI and competition indices that weighted competitors by relative size. However, two-sided competition could not be rejected in view of the significant influence of smaller trees on SVI of larger trees. No difference between intra- and inter-specific competition on white pine growth was detected. Plasticity in growth form was evident. Intermediate trees exhibited significantly different crown and stem form among crown classes in the control treatment, and different crown form relative to the release treatment. Crown size, which was positively correlated with volume increment, improved as a result of competition release and was inversely correlated with levels of local neighbourhood competition. Vertical distribution of bole area increment in all crown classes was altered in the release treatment. Bole area increment in released trees increased progressively from tree apex to base of the stem for the first 15 years after partial cutting, eventually resulting in significant changes in stem form. Control trees showed relatively constant area increment below the crown with no significant change in stem form. A cumulative volume growth model based on initial tree size, age, and local neighbourhood competition was developed for use in white pine stands managed under a partial cutting regime, such as the uniform shelterwood system.
Download or read book Growth Responses in Individual Eastern White Pine Pinus Strobus L Trees Following Partial Cutting Treatments microform written by Eddie Bevilacqua and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Italian National Forest Inventory Methods and Results of the Third Survey written by Patrizia Gasparini and published by Springer Nature. This book was released on 2022-09-29 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book deals with the methods and the results of the third Italian national forest inventory (INFC2015). Arma dei Carabinieri is entrusted with the realisation of the National Forest Inventory and with the decisions about the aims of the survey and data treatment. National forest inventories produce statistically based information on forests over country areas. Such information is used either at subnational or at supranational level in a great number of spheres and processes, included possibility to depict the status of the world forests. Italy conducted its first forest inventory in 1985 and in 2001 a permanent national forest inventory was launched to have periodically updated statistics. Due to the growing concern about the environment and especially the climate change, estimating forests carbon pools was a stated main objective and it was accordingly named Italian National Inventory of Forest and Forest Carbon Pools (INFC). The book begins with a description of the general organisation, the definitions, the methods and the estimation procedures. It proceeds showing the main estimates produced by INFC2015, in tables that are given in the book chapters. The estimates are presented through texts that introduce the subject matter, explain the way the related variables were surveyed and comment on the main outcomes with the help of graphics. The estimates presented include forest area, management and production, biodiversity and protection, forest health, protective and socio-economics functions. Role of forest in the carbon balance was analysed in a specific Chapter, as this is important for its role in the climate change mitigation. The book ends providing an understanding of the current dynamics of Italian forests by comparing the estimates obtained from INFC2005 and INFC2015, the last two national surveys.
Download or read book Rooting White Pine Cuttings written by Albert Granville Snow and published by . This book was released on 1940 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Forestry Chronicle written by and published by . This book was released on 1999 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diameter Increment in Mature Eastern White Pine Pinus Strobus L Following Partial Harvest of Old growth Stands in Ontario Canada written by and published by . This book was released on 2004 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study addresses the gap in knowledge about the responses of large, old trees to release from competition. Investigators took increment cores from mature eastern white pines in 144 sample plots in 12 partially harvested and six unharvested control stands in the Algoma region of Ontario to determine how these trees responded to a structural retention harvest that had occurred nine years previously. The results demonstrate the ability of old trees to respond markedly to reduced competition. The implications of the results for timber production, stand regeneration, wind firmness, and maintenance of wildlife habitat are discussed.
Download or read book Canadian Journal of Forest Research written by and published by . This book was released on 2011 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2000 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Approach to Silvicultural Control of Growth in Eastern White Pine Trees Pinus Strobus L written by Robert Wilbar Jr Wilson and published by . This book was released on 1965 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Nature of White Pine Pinus Strobus L Growth Response to Thinning written by Andrew R. Gillespie and published by . This book was released on 1985 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Soils and Ecosystem Sustainability written by James Reid Boyle and published by Elsevier Science & Technology. This book was released on 2001 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Response of the Understory to Low Intensity Prescribed Burning Or Mechanical and Herbicide Treatment in a Northern Mesic Eastern White Pine Pinus Strobus L Forest in the Menominee Nation Wisconsin written by Bobbie J. Webster and published by . This book was released on 2008 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Conference on Diameter limit Cutting in Northeastern Forests written by and published by . This book was released on 2005 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abstract Bulletin of the Institute of Paper Chemistry written by and published by . This book was released on 1979 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1999 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology and Management of Eastern White Pine in the Lake Abitibi 3E and Lake Temagami 4E Ecoregions of Ontario written by C. Latremouille and published by . This book was released on 2008 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
