Download or read book Juvenile Wood in Forest Trees written by Bruce J. Zobel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: The trend in forestry is toward shorter rotations and more complete utiliza tion of trees. The reasons are: (1) financial pressures to obtain rapid returns on the forestry investment made possible by an earlier harvest; (2) enforced harvest of young plantations to maintain a continuing supply of cellulose for mills where wood shortages are experienced; (3) thinning young plantations, both because they were planted too densely initially and because thinning is done where long rotation quality trees are the forestry goal; (4) more intensive utilization is being done using tops and small diameter trees; and (5) there is interest in using young (juvenile) wood for special products because of its unique characteristics and the development of new technologies. The largest present-day source of conifer juvenile wood is from thinnings of plantations where millions of hectares of pine were planted too densely. Because of the better growth rate resulting from improved silviculture and good genetic stock, plantations will need to be thinned heavily. As a result of this trend, young wood makes up an increasingly larger proportion of the total conifer wood supply each year. Large amounts of juvenile wood from hard woods are also currently available, especially in the tropics and subtropics, because of the fast growth rate of the species used, which results in shorter rotations and ess~ntially all juvenile wood.

Download or read book New Zealand Journal of Forestry Science written by and published by . This book was released on 2003 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book IAWA Bulletin written by International Association of Wood Anatomists and published by . This book was released on 1988 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Appita Journal written by and published by . This book was released on 2003 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy from Biomass written by and published by . This book was released on 1987 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book IAWA Journal written by and published by . This book was released on 1998 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Australian Forest Research written by and published by . This book was released on 1986 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the Ninth Meeting of Representatives Held at Somerset Tasmania 24 to 27 February 1986 written by Australian Forestry Council. Forest Genetics Research Working Group. Meeting and published by . This book was released on 1986 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Results for Thinning and Pruning Eucalypt Plantations for Sawlog Production in Tasmania written by A. M. Gerrand and published by . This book was released on 1997 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wood and Fiber Science written by and published by . This book was released on 1997 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Australian Forestry written by and published by . This book was released on 2004 with total page 652 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 1988-06 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wood Variation written by Bruce J. Zobel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood is the usual end product of a forestry operation. Because of its importance, numerous studies have been made relative to wood prop erties, the causes of wood variation, and how best to develop wood for desired products. There is voluminous literature related to these subjects, but it is neither well known nor appreciated by foresters because the publications are often not available or are not well understood by the forester or by those who use the wood. Frequently, the literature is confusing and contradictory, making it difficult for the nonspecialist to use what information is available. In order to produce and use wood efficiently, the variation pat terns within trees, among trees within species, and among species must be understood. This also requires some knowledge of the causes of variation and the effects of different wood properties upon utiliza tion. The information about variation patterns, their causes, and con trol and effect upon the product must be known by the tree grower, the tree breeder, and the tree harvester as well as by those who ultimately convert wood into a final, salable product.

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1998 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agrindex written by and published by . This book was released on 1995 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Eucalyptus urophylla S T Blake ecology and silviculture in Vietnam written by Chaw Chaw Sein and published by CIFOR. This book was released on 2011-01-13 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual summarises information on the ecology and silviculture of the species Eucalyptus urophylla S.T. Blake, with an emphasis on Vietnam. It also encompasses growth and yield data from published sources, as well as collected from sites under smallholder industrial plantations in Binh Dinh and Phu Tho provinces, Vietnam. This manual is 1 of 5 that guide smallholder tree planting of five selected tree species in Vietnam. The other four species are: Acacia hybrid, Acacia mangium Willd, Cinnamomum parthenoxylon (Jack) Meisn and Erythrophloeum fordii Oliver.

Download or read book THE STATE OF THE WORLD s FOREST GENETIC RESOURCES written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-05-25 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: The publication was prepared based on information provided by 86 countries, outcomes from regional and subregional consultations and commissioned thematic studies. It includes: •an overview of definitions and concepts related to Forest Genetic Resources (FGR) and a review of their value; •a description of the main drivers of changes; •the presentation of key emerging technologies; •an analysis of the current status of FGR conservation, use and related developments; •recommendations addressing the challenges and needs. By the FAO Commission on Genetic Resources for Food and Agriculture.