نتایج جستجو برای: urban forestry

تعداد نتایج: 180511  

2016
Brian Ritter Brian A. Ritter Elena Mikhailova

In contrast to standard aerial imagery, unmanned aerial systems (UAS) utilize recent technological advances to provide an affordable alternative for imagery acquisition. Increased value can be realized through clarity and detail providing higher resolution (2-5 cm) over traditional products. Many natural resource disciplines such as urban forestry will benefit from UAS. Tree inventories for ris...

2006
PETER VANDERGEEST NANCY LEE PELUSO

This paper examines the origins, spread and practices of professional forestry in Southeast Asia, focusing on key sites in colonial and post-colonial Indonesia, Malaysia and Thailand. Part 1, in an earlier issue of this journal, challenged popular and scholarly accounts of colonial forestry as a set of simplifying practices exported from Europe and applied in the European colonies. We showed th...

Journal: :British journal of industrial medicine 1988
M Färkkilä I Pyykkö V Jäntti S Aatola J Starck O Korhonen

Neurological findings were examined in 186 forestry workers with a mean exposure to chain saw vibration of 16.6 hours. The prevalence of active vibration induced white fingers was 5%, parethaesias of the hands 53%, and muscle weakness 13%. Clinical polyneuropathy was observed in 16 forestry workers in the hands (7.5%) which did not correlate with alcohol consumption. Seventy nine forestry worke...

Journal: :جنگل و فرآورده های چوب 0
سیده کوثر حمیدی تهران منوچهر نمیرانیان تهران جهانگیر فقهی تهران مرتضی شعبانی ساری

one of the most important information in urban forestry is acquaintance of urban landscape’s area or proportion. nowadays, in several countries variable methods are used to achieve this aim. since there is not any complete method to study urban forest’s status in iran, it is impossible to exert authentic management for these resources. hence, in this research, sampling methods and ikonos satell...

2013
Marine Elbakidze Kjell Andersson Per Angelstam Glen W. Armstrong Robert Axelsson Frederik Doyon Martin Hermansson Jonas Jacobsson Yurij Pautov

This paper analyzes how sustained yield (SY) forestry is defined and implemented in Sweden and Russia, two countries with different forest-industrial regimes. We first compare definitions of SY forestry in national legislation and policies. Then we study forest management planning in two large forest management units with respect to: delivered forest products and values, how the harvest level o...

2000
David L. Evans

By Stephen A. Barlow, Ian A. Munn, David A. Cleaves, and David L. Evans T he potential impact of urbanization on the South’s timber supply is dramatic. Between 1960 and 1990, the South’s share of the nation’s population increased from 30.7 percent to 34.4 percent (US Department of Commerce 1992). The amount of land in the South swallowed by metropolitan areas has more than doubled, from 9.8 per...

2004
Dietrich Darr Holm Uibrig

The socio-economic development of largely subsistence-oriented rural areas is a prominent policy objective in Laos. Whereas in the surrounds of major urban centres and regions with favourable infrastructure and market access a dynamic industrial and service sector have emerged, most of the countryside remains economically undeveloped. Cultivation of commercial tree species is acknowledged as a ...

Journal: :Sustainability 2023

Urban forests, parks, and gardens are fundamental components of urban sustainability, resilience, regenerative dynamics. Designers, architects, landscape architects could smartly manage these dynamic ecosystems if efficiently provided with design-oriented digital tools, technologies, techniques. However, practitioners lack knowledge standardized procedures for their uses. The rise low-cost sens...

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