Author: Tore E. TimellPublisher:
ISBN:
Category :
Languages : en
Pages : 631
Book Description
Compression wood in gymnosperms. 2. Occurrence of stem, branch, and root compression woods, factors causing formation of compression wood, gravitropism and compression wood, physiology of compression, wood formation, inheritance of compression wood
Author: Tore E. TimellOccurence of Stem, Branch, and Root Compression Woods, Factors Causing Formation of Compression Wood, Gravitropism and Compression Wood, Physiology of Compression Wood Formation, Inheritance of Compression Wood
Author: Compression Wood in Gymnosperms: Occurrence of stem, branch, and root compression woods
Author: Tore E. TimellPublisher:
ISBN:
Category : Compression wood
Languages : en
Pages : 644
Book Description
Compression Wood in Gymnosperms: Occurrence of stem, branch, and root compression woods
Author: Tore E. TimellPublisher:
ISBN:
Category : Compression wood
Languages : en
Pages : 648
Book Description
Utilization of Residual Forest Biomass
Author: Pentti HakkilaPublisher: Springer Science & Business Media
ISBN: 3642740723
Category : Technology & Engineering
Languages : en
Pages : 582
Book Description
An increase in the demand for wood results in improved recovery and less residual biomass in the forests. Paradoxically, interest in forest residue as a renewable source of raw material seems to be in a reverse ratio to its availability in a certain area. Finland and Sweden are probably more dependent on forestry and forest in dustries than any other developed countries in the world. A sufficiency of raw ma terial for integrated forest industries is vital for the national economy of both countries, and a great deal of attention is being paid to the long-term potential of unutilized biomass left behind in logging operations. Furthermore, since these countries possess no reserves of fossil fuels, and since their per-capita consump tion of primary energy is exceptionally high, they also consider unmerchantable forest biomass a realistic source of indigenous energy. A joint Nordic research project on harvesting and utilization of logging residue was carried out in 1969-1976 under the auspices of the Nordic Research Council on Forest Operations. This fruitful cooperation soon gave rise to related national projects in Sweden, Finland, Norway, and Denmark, stimulating further research and producing practical applications. Concurrently, particularly after the worldwide energy crisis in 1973, research on all aspects of utilization of forest bio mass mushroomed in the United States, Canada, and the Soviet Union. An ex plosive increase occurred in both the number and diversity of biomass studies.
Formation and Function of Compression Wood in Gymnosperms
Author: Arthur H. WestingCompression Wood in Gymnosperms
Author: Tore E. TimellPublisher: Springer
ISBN: 9783540157151
Category : Technology & Engineering
Languages : en
Pages : 625
Book Description
Felix qui potuit rerum cognoscere causas. Pub/ius Vergilius Mara Forests have long been one of mankind's most important natural re sources and not the least because forests are, if properly managed, re newable. They serve us in many different ways, but above all in pro viding us with wood, one of the most remarkable and useful of all natural materials. Reaction wood, compression wood in gymnosperms and tension wood in the arboreal angiosperms, serves the function of making it possible for trees to perform movements. In the ancient Ginkgo and in the conifers, the ability to form compression wood is of vital importance to each and every tree. Compression wood plays a crucial role in the regulation of tree form in these gymnosperms, and their arborescent habit probably depends on their ability to develop this tissue. Few forest and plantation trees are devoid of compression wood in their stem, and all of them have it in their branches. Unfortu nately, what is necessary and beneficial for the tree in this case is harmful to mankind, for compression wood is a very serious defect in both sawtimber and pulpwood. It is now almost 20 years since the last complete survey of compres sion wood was published, namely Arthur H. Westing's excellent review of this subject. My major objective in writing the present book has been to bring together in one single work everything that is currently known about compression wood.
Compression Wood in Gymnosperms: Ecology of compression wood formation, silviculture, and compression wood
Author: Tore E. TimellPublisher:
ISBN:
Category : Compression wood
Languages : en
Pages : 828
Book Description
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