نتایج جستجو برای: buxus trees
تعداد نتایج: 90201 فیلتر نتایج به سال:
The present investigation was aimed to study the qualitative and quantitative characteristics of Lebanon Oak (Quercus libani Olive.) in Marivan city-kordistan. To investigate the effect of altitude on the qualitative and quantitative characteristics of Lebanon Oak, 108 circular plots of 1000 m2 on three elevation classes of 1400-1600, 1600-1800 and 1800-2000 m were designated. Within each plot,...
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...
the establishment and survival of seedlings is one of the main objectives of forest management which ensures continues production. the aim of this article is the investigation of dead trees effect on beech and hornbeam seedlings in masal's forests. for this reason, 30 dead trees were selected, and the control trees were selected in four aspects around the dead trees. they were the same as ...
Oak decline as one of the most important environmental problems of Zagros forests, requires proper management to decrease trees dieback and mitigate its effects. This study aimed to find the best sampling method for estimating density and crown canopy of declined oak trees in Zagros Forests. All declined trees in an area of 100 ha of Dinarkooh protected forest were surveyed and trees density, g...
Introduction: Buxus hyrcana Pojark. has been traditionally used for the treatment of skin disorders including wound injuries and recent studies have shown the therapeutic potential of some Buxus species in healing skin wounds. In this study, the effect of an ointment containing methanolic extract of B. hyrcana leaves was evaluated on the full-thickness wound healing in a rat model. Materials an...
In this study two actual types of problems are considered and solved: 1) determining the maximum common connected fragment of the T-tree (T-directed tree) which does not change with time; 2) determining all maximum common connected fragments of the T-tree (T-directed tree) which do not change with time. The choice of the primary study of temporal directed trees and trees is justified by the wid...
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