Author: Publisher:
ISBN:
Category : Hardwoods
Languages : en
Pages : 6
Book Description
How to Reduce Decay in High-value Hardwood Trees
Author: Reducing Decay Losses in High-value Hardwoods
Author: Frederick H. BerryPublisher:
ISBN:
Category : Hardwoods
Languages : en
Pages : 24
Book Description
Agriculture Handbook
Author: Frederick H. BerryPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 24
Book Description
Set includes revised editions of some issues.
How to Reduce Decay in High-value Hardwood Trees
Author: How to Reduce Decay in High-value Hardwood Trees
Author: Frederick H. BerryAgriculture Handbook
Author: Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 896
Book Description
Set includes revised editions of some issues.
A Photo Guide to the Patterns of Discoloration and Decay in Living Northern Hardwood Trees
Author: Alex L. ShigoPublisher:
ISBN:
Category : Hardwoods
Languages : en
Pages : 110
Book Description
S2This guide has been prepared to help you estimate the extent and severity of discoloration and decay in northern hardwood trees. Though this certainly is not the last word on the subject, our research in this has progressed to the point where our findings, combined with the findings of others, can be put to practical use. By dissecting living trees and studying the organisms that infect them, we now know that discoloration and decay develop in certain definite patterns. And the patterns of discoloration and decay within the tree can be predicted from external signs. Discoloration and decay are the most serious defects of northern hardwood trees. In speaking of defect, we must distinguish between injury and damage. Injury harms the tree: damage lowers the quality of the wood. For example, a disease like vascular wilt may kill the tree but do no damage to the wood. But an insect like the cambium miner may do very little harm to the tree yet do great damage to the wood. The unseen damage done to a tree is important in the economics of forestry. Every operation in growing a tree, harvesting it, and converting it into products costs time and money. And after all the time and money have been spent on a tree, the product made from it may prove to be not worth the effort; and the tree might have been used more profitably for some other product that does not require high-quality wood. The increased use of veneer offers an illustration. A veneer log brings top prices. But its actual value may not become apparent till it is put on a lathe and peeled. A log that looks very good and sound to the core, may have minute streaks of discoloration scattered all through it, so that all the veneer it produces is badly streaked with defects. On the other hand, a log that has a rotten core surrounded by clear wood may produce the highest quality of veneer. So it is not so important how much discoloration and decay a tree has, but when these defects are in a tree. The pattern of the discoloration and decay- that's the important thing.S3.
Fungal Strategies of Wood Decay in Trees
Author: Francis W.M.R. SchwarzePublisher: Springer Science & Business Media
ISBN: 3642573029
Category : Science
Languages : en
Pages : 195
Book Description
Wood-destroying fungi play an important role in nature, because they are the only forms of life capable of reducing wood to its initial constituents. However, they can also be dangerous for people and property, as they can impair the stability and fracture-safety of trees. This book gives detailed information, based on new and original scientfic findings, on the examination and effects of the most important species of fungi associated with failure of infected urban trees. In addition, new ways are presented for predicting the advance of decay in the living tree. The subject is illustrated and made easily accessible by numerous colored photos of fungus fruit bodies, defect symptoms, and macroscopic and microscopic pictures of wood decay. A detailed introduction to the fundamentals of wood pathology provides a way into the subjects of applied mycology and tree care for readers without previous special knowledge. Francis W.M.R. Schwarze, National Diploma of Arboriculture at Merrist Wood College, UK (1991), Master of Science in Pure, Applied Plant and Fungal Taxonomy, University of Reading, UK (1992), doctorate at Freiburg University (1995), since 1996 assistant at the Institute for Forest Botany and Tree Physiology at Freiburg University, concentrating on research into wood-destroying fungi and host-fungus interactions. Julia Engels, Diploma Forester at Freiburg University (1995), doctorate on root fungi at Freiburg University (1998). Since 1998 active in tree care and mycology in Luxembourg. Claus Mattheck, born 1947, doctorate in theoretical physics (1973), qualified as lecturer on damage studies at Karlsruhe University (1985), and now teaches there as Professor. Since 1991 he has been an officially appointed and attested expert on tree mechanics and fracture behaviour. Has been awarded numerous prizes for research and publication. Head of the Biomechanics Department at the Karlsruhe Research Centre.
Author: Alex L. Shigo
Author: