نتایج جستجو برای: selective felling

تعداد نتایج: 199877  

2008
Elva J.H. ROBINSON Adam TOFILSKI Francis L.W. RATNIEKS

Woodland management strategies are increasingly focused on reducing non-native plant species. However, changing the species profile of a habitat can have highly disruptive effects on local ecosystems. An isolated woodland containing a population of the northern wood-ant Formica lugubris ZETTERSTEDT, 1838 was used as a case study to predict the effects on the ants of proposed woodland management...

2001
R. Harriman

Trends in major ionic components of bulk precipitation were analysed for two sites, Faskally and Loch Ard forest in Scotland, for the period 1972-2000. The pattern of change was not linear. Large reductions in sulphur deposition occurred in the early 1980s and, to a lesser extent, during 1995-2000, with a period of relative stability between 1988-95. pH increased significantly at both sites but...

2018

Cut-to-length (CTL) timber harvesting technology currently accounts for approximately 90% of Caspian forests. The technology involves felling, branching, cross-cutting, and then the skidder carries the logs to a landing, where the timber is temporarily stored, sorted and assembled for transportation to the mill. Cut-to-length systems typically require less labor, less access road construction, ...

2018

Cut-to-length (CTL) timber harvesting technology currently accounts for approximately 90% of Caspian forests. The technology involves felling, branching, cross-cutting, and then the skidder carries the logs to a landing, where the timber is temporarily stored, sorted and assembled for transportation to the mill. Cut-to-length systems typically require less labor, less access road construction, ...

Journal: :Journal of the Japanese Forest Society 2007

Journal: :Journal of the Faculty of Agriculture, Kyushu University 2001

ژورنال: مدیریت سلامت 2010
دشتی رحمت آبادی, مرضیه, مهرام, بهروز,

Introduction: Adams’ equity theory calls for a fair balance between an employee’s inputs and their outputs. This research aimed to assess the effect of managers' leadership styles on employees' equity feeling. Methods: This casual-comparative study is carried out in the first half of 2006 at Mashhad University of Medical Sciences. 179 employees filled anonymously the questionnaires of equity fe...

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