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OverviewHarvesting includes all the activities to fell trees and remove them from the forest to the roadside for loading and transport from the forest. Harvesting and extraction operations are the activities that generally cause the most significant impacts on forest managed for timber production. Sustainable forest mana- ment is concerned with management of forests in such a way as to control the impacts associated with harvesting and timber extraction. Harvesting and extraction for sustainable timber production in natural forests are not to be confused with logging associated with land conversion activities such as c- version to permanent or temporary agriculture, pasture land, or domesticated trees. Much of the impact of harvesting and extracting can be reduced through proper planning and control of harvesting operations using principles, s- tems, and techniques common to temperate forests. However, many areas of the tropics pose unique operating conditions: heat, high humidity, hi- intensity precipitation, occurrence of certain diseases, and lack of rock for su- able road surfacing. In natural forests, clear felling is rarely practiced, and many species are the rule with few commercial species on any hectare; thus, log removals per unit area are low. Full Product DetailsAuthor: John SessionsPublisher: Springer-Verlag Berlin and Heidelberg GmbH & Co. KG Imprint: Springer-Verlag Berlin and Heidelberg GmbH & Co. K Edition: 2007 ed. Dimensions: Width: 15.50cm , Height: 1.40cm , Length: 23.50cm Weight: 0.454kg ISBN: 9783540463900ISBN 10: 3540463909 Pages: 170 Publication Date: 05 February 2007 Audience: Professional and scholarly , Professional & Vocational Format: Hardback Publisher's Status: Active Availability: Out of stock ![]() The supplier is temporarily out of stock of this item. It will be ordered for you on backorder and shipped when it becomes available. Table of ContentsPlanning.- Organization, Administration, and Labor Productivity.- Felling.- Animal Skidding.- Ground-Based Mechanized Skidding and Forwarding.- Cable and Helicopter Yarding Systems.- Loading.- Transport.- Appropriate Harvesting Technology.- Concluding Comments.ReviewsAuthor InformationJohn Sessions is University Distinguished Professor and Stewart Professor of Forest Engineering at Oregon State University. His forestry career spans five decades, forest operations on five continents, including experience in each of the main tropical forest regions. He has demonstrated logging methods in Jamaica, was harvesting manager in the Amazon, conducted reduced impact logging evaluations in Malaysia, transportation planning workshops in Africa and logging feasibility studies throughout tropical Latin America from Costa Rica and Colombia to northwest Argentina. He is joined by coauthors who have a combined experience in more than 60 countries. Tab Content 6Author Website:Countries AvailableAll regions |