Download or read book The Influence of Some Different Thinning Patterns on the Development of Scots Pine Stands written by S. Bucht and published by . This book was released on 1981 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of thinning fertilization wind and tree size on the development of Scots pine trees written by Erik Valinger and published by . This book was released on 1990 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Influence of Spacing and Selectivity in Thinning on Stand Development Operations and Economy written by G. Gallagher and published by . This book was released on 1985 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Thinning Systems to Reduce Stand Damages written by International Union of Forestry Research Organizations. Project Group P4.02--Economics and Harvesting of Thinnings and published by . This book was released on 1987 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of Thinning and Some Other Problems in Management of Slash Pine Plantations written by Frank A. Bennett and published by . This book was released on 1971 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Energy Update written by and published by . This book was released on 1983 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by C. R. Bamsey and published by Clear Lake Publishing. This book was released on 1998 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains papers presented at a meeting to help answer biological, technical, and policy questions related to pre-commercial and commercial thinning programs. Papers are arranged in four broad topic areas: stand density management concepts, planning, and silvicultural prescriptions; growth and yield responses and monitoring; stand protection and environmental issues; and operations experience and harvesting technology. A summary of a panel discussion is also included.
Download or read book Thinning of Scots Pine and Norway Spruce Monocultures in Sweden written by Urban Nilsson and published by . This book was released on 2010 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of thinning intensity, thinning interval, thinning form and timing of the first thinning on stand level gross- and net stem volume production in Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies L. Karst) was investigated in a nationwide field experiment across Sweden. In total, 35 Scots pine sites distributed from the south to the north of Sweden and 13 Norway spruce sites located in the south and central parts of Sweden were investigated. Thinning treatments ranged from unthinned control, to light and moderate repeated thinnings, to a treatment where 60-70% of the basal area was removed in a single thinning. In addition, thinning from above was compared to thinning from below and delayed first thinning was compared to early first thinning. The average measurement period was 31 years for Scots pine and 30 years for Norway spruce. All Scots pine thinning treatments reduced the total gross stem volume production compared to the unthinned control, whereas only the heaviest thinning treatments, in which a large proportion of the basal area was removed, reduced the total gross stem volume production for Norway spruce. Thinning from above did not affect total gross stem volume production of Scots pine, but there was a tendency towards lower production in Norway spruce. For Norway spruce, thinning from above resulted in lower net stem volume production than thinning from below. Delaying the first thinning did not affect gross stem volume production for either Scots pine or Norway spruce. Net volume production and volume production in trees with diameter at breast height> 8 cm was higher for the light thinning treatment than for the unthinned control in Norway spruce. In Scots pine, there was no difference between the light thinning treatment and unthinned control in net volume production. For cots pine, the heavy thinning treatments decreased net volume production compared to the unthinned threatment whereas there were no differences in net volume production between the heavy thinning treatments and unthinned control in Norway spruce.
Download or read book Silva Fennica written by and published by . This book was released on 1996 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1981 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Scandinavian and Russian Forest Thinning Literature written by and published by University of Joensuu. This book was released on 1997 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seed Germination Ontogeny and Shoot Growth written by T.T. Kozlowski and published by Academic Press. This book was released on 1971-01-28 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seed Germination, Ontogeny, and Shoot Growth ...
Download or read book Structure and Growth of Some Young Scots Pine Stands written by Jeremy Flower-Ellis and published by . This book was released on 1982 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forestry Bibliography 1981 84 Bibliographic references written by and published by . This book was released on 1985 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wood Quality and its Biological Basis written by John Barnett and published by John Wiley & Sons. This book was released on 2009-02-18 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood is the most versatile raw material available to man. It isburned as fuel, shaped into utensils, used as a structuralengineering material, converted into fibres for paper production,and put to newer uses as a source of industrial chemicals. Its quality results largely from the chemical and physicalstructure of the cell walls of its component fibres, which can bemodified in nature as the tree responds to physical environmentalstresses. Internal stresses can accumulate, which are releasedcatastrophically when the tree is felled, often rendering thetimber useless. The quality of timber as an engineering materialalso depends on the structure of the wood and the way in which ithas developed in the living tree. Tree improvement for quality cannot be carried out without anunderstanding of the biological basis underlying wood formation andstructure. This volume brings together the viewpoints of bothbiologists and physical scientists, covering the spectrum from theformation of wood to its structure and properties, and relatingthese properties to industrial use. This is a volume for researchers and professionals in plantphysiology, molecular biology and biochemistry.
Download or read book Agrindex written by and published by . This book was released on 1993 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Initial Thinning in Red Pine Plantations written by John H. Cooley and published by . This book was released on 1969 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
