نتایج جستجو برای: wood supplying plans

تعداد نتایج: 102579  

SH. Pourmousa

In this research, efficiency of Iranian forest and rangeland decision making unit was assessed using non-parametric method. Inputs and outputs determined by field research and with applying a Delphi method the final input and output variables selected. Forty five wood-producing units (forestry plans) in three northern Iranian province were studied using Data Envelopment Analysis. The efficiency...

Journal: :international journal of data envelopment analysis 0
sh. pourmousa

in this research, efficiency of iranian forest and rangeland decision making unit was assessed using non-parametric method. inputs and outputs determined by field research and with applying a delphi method the final input and output variables selected. forty five wood-producing units (forestry plans) in three northern iranian province were studied using data envelopment analysis. the efficiency...

بخشنده, بهزاد, عموزاده, حمید, نقدی, رامین, نیکوی, مهرداد,

Awareness of quality and quantity of wood produced in forestry plans play an important role in management of this product in market. The objective of this study that has been carried out in 7th watershed of north forest of Iran was to determine effective factors on wood breakage in felled trees, compare wood losses during felling and identify wood losses in felled trees and methods of their pre...

2016
Andrew T. Simpson Michael A. Hemingway Cliff Seymour

There is growing use of wood pellet and wood chip boilers in the UK. Elsewhere fatalities have been reported, caused by carbon monoxide poisoning following entry into wood pellet storage areas. The aim of this work was to obtain information on how safely these two fuels are being stored in the UK. Site visits were made to six small-scale boiler systems and one large-scale pellet warehouse, to a...

2016
Annie Deslauriers Jian-Guo Huang Lorena Balducci Marilène Beaulieu Sergio Rossi

Nonstructural carbohydrates (NSCs) play a crucial role in xylem formation and represent, with water, the main constraint to plant growth. We assessed the relationships between xylogenesis and NSCs in order to (1) verify the variance explained by NSCs and (2) determine the influence of intrinsic (tissue supplying carbon) and extrinsic (water availability and temperature) factors. During 2 years,...

2008
Yuri Gerasimov Anton Sokolov Timo Karjalainen

Nacrtak Extraction of short-wood from harvesting operations is becoming common practice in Russia. Logging companies are faced with a large number of options for short-wood transport, but they have limited knowledge of logistics potential. Developed GIS-based decision support program is a unique tool assisting logging companies in making comprehensive decisions on organizational options for the...

2011
Dahyana Britto Carlos Pirovani Esteban Gonzalez João Silva Abelmon Gesteira Júlio Cascardo

Background Wood is the most important natural and renewable source of infinite energy, but this is not their only function, it also has great significance to the buildings and other products [1]. Eucalyptus, the genus that includes more than 500 species, is among the key forest species planted around the world to solid wood, and mainly for the pulp and paper industries. Aiming at the sustainabl...

Journal: :River Research and Applications 2023

Large wood is inherently mobile in naturally functioning river corridors, yet management commonly introduces that anchored to limit hazards. Wood periodically mobilized important for: replacing stationary large performs diverse physical and ecological functions; contributing the disturbance regime of corridor; diversifying decay states; dispersing organisms propagules; providing refugia during ...

2017
Esther S. Parish Virginia H. Dale Emma Tobin Keith L. Kline

The data presented in this article are related to the research article entitled "How is wood-based pellet production affecting forest conditions in the southeastern United States?" (Dale et al., 2017) [1]. This article describes how United States Forest Service (USFS) Forest Inventory and Analysis (FIA) data from multiple state inventories were aggregated and used to extract ten annual timberla...

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