نتایج جستجو برای: selective felling

تعداد نتایج: 199877  

2014
Inkyung Choi Jihyun Lee

In this study, presence principles were developed for dynamic display design and evaluation of dynamic display for designing mixed reality space. This is a research to classify the indicators collected through the researches about the existing measurement and evaluation of the existence felling and information suggestion methods in mixed reality as the evaluation principles of the displays and ...

2014
Jacob R. Hudson James L. Hanula

An invasive shrub, Chinese privet (Ligustrum sinense Lour.), was removed from heavily infested riparian forests in the Georgia Piedmont in 2005 by mulching machine or chainsaw felling. Subsequent herbicide treatment eliminated almost all privet by 2007. Recovery of plant communities, return of Chinese privet, and canopy tree growth were measured on removal plots and heavily invaded control plot...

Journal: :IOP Conference Series: Earth and Environmental Science 2019

Journal: :Silva Balcanica 2021

AbstractGlobally, about 20 million ha of land area is occupied by plantations Eucalyptus . Motor-manual tree harvest-ing techniques (using chainsaws) are still applied in eucalypt plantations, especially difficult terrains or for large- sized trees where mechanised felling may not be an effective and safe possible option to apply. There little information available on motor-manual stands. This ...

Journal: :Forest@ - Rivista di Selvicoltura ed Ecologia Forestale 2006

Journal: :Scandinavian Journal of Forest Research 2021

With cut-to-length harvesters, tree stems are measured and cut into different timber assortments at the time of felling. These measurement data collected from harvested trees can be used for decision-support levels forest industry chain also planning when combined with remote sensing data. The aim this study was to examine operational application predicting merchantable stem volume, basal area,...

2006
Lina Holmgren

Holmgren, L. 2006. Forest Ownership and Taxation in a Swedish Boreal Municipality Context. Doctor’s dissertation. ISSN 1652-6880, ISBN 91-576-7098-6 Forest ownership and changes in the forestry sector have played an important role for development in northern inland Sweden and remain vital for a sustainable development. Examining forest business activity and the Swedish tax system this thesis ai...

Journal: :European journal of forest engineering 2021

Felling trees, which is the basis of forestry activities, dangerous and difficult work that needs to be performed carefully. These activities can affect forest workers’ safety, damage remaining forest, or reduce value extracted product. Most accidents injuries in operations occur due trees not falling desired direction. Directional mistakes tree felling processes underestimating criteria negati...

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