Propelled balloons for harvesting and transporting timber
نویسندگان
چکیده
منابع مشابه
Environmentally Sound Timber Extracting Techniques for Small Tree Harvesting
Due to large area disturbed and great deal of energy cost during-its operations, introducing or applying the appropriate timber extracting techniques could significantly reduce the impact of timber extraction operations to forest environment while pursuing the reasonable operation costs. Four environmentally sound timber extraction techniques for small tree harvesting, particularly for thinning...
متن کاملMushrooms and Timber: Managing Commercial Harvesting in the Oregon Cascades
decline in timber harvesting from federal forests. The harvest of these products involves complex and interrelated social, economic, managerial, nd biological issues ( ee Savage 1995; Molina et al. 1997). Although timber typically exceeds nontimber forest products in value, opportunities xist o manage for both, to the benefit of different groups. Of nontimber products, the wild mushroom industr...
متن کاملThe ecological implications of harvesting non-timber forest products
1. The harvest of wild non-timber forest products (NTFP) represents an important source of income to millions of people world-wide. Despite growing concern over the conservation of these species, as well as their potential to foster forest conservation, information on the ecological implications of harvest is available only in disparate case studies. 2. Seventy studies that quantify the ecologi...
متن کاملHydrological Consequences of Timber Harvesting in Landscape Zones of Siberia
Despite a large number of publications covering various aspects of the influence of climatic factors on runoff, this direction in hydrological research acquires a new meaning in connection with global climate change and the increase in anthropogenic press on river systems. The authors of this work focused on the impact of anthropogenic factors on river runoff. Many rivers of Siberian taiga drai...
متن کاملWho Pays for and Who Benefits from Improved Timber Harvesting Practices in the Tropics?
Abbreviations and Acronyms iv Acknowledgements v Summary vi 1. ar arv v v v vest est est est esting in the T ing in the T ing in the T ing in the T ing in the Tr r r r ro o o o opics pics pics pics pics 3 2. ar ariat iat iat iat iatio io io io ion in C n in C n in C n in C n in Costs and B osts and B osts and B osts and B osts and Be e e e ene ne ne ne nefits o fits o fits o fits o fits of f f ...
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ژورنال
عنوان ژورنال: Forestry
سال: 2002
ISSN: 0015-752X,1464-3626
DOI: 10.1093/forestry/75.4.495