Beech Trees and Lightning
نویسندگان
چکیده
منابع مشابه
Study of ectomycorrhizal fungi with beech trees in highland beech forests (Farim, Mazandaran province)
In this study, the ectomycorhizal fungi from beech trees in highland beech forests of Farim (Mazandaran province) were identified based on extraction of DNA from roots and sequencing the ITS region of nuclear ribosomal DNA. For this purpose, in the altitude of 1500-2100 meters A.S.L, 30 plot and one plant per each plot were selected randomly and samples were taken from roots in depths of 10 cm ...
متن کاملPredicting red heartwood formation in beech trees (Fagus sylvatica L.)
Beech-forests (Fagus sylvatica L.) represent the natural vegetation cover for the majority of sites in Germany. Although coniferous forests actually dominate, beech is the most important among the deciduous tree-species in Germany, when considering the area and the economics. While the wood of the younger beech normally shows a whitish colour (white beech), the timber of older beech may form co...
متن کاملMature beech trees (Fagus grandifolia; Fagaceae) are persistently clonal in coves and beech gaps in the Great Smoky Mountains.
PREMISE OF THE STUDY Angiosperms frequently have mixed sexual and asexual reproductive strategies, which can have significant consequences for population and community structure. Many tree species respond to disturbance by vegetative sprouting over sexual reproduction, but the ability to do so varies within and among species and is poorly studied. We tested the hypothesis that root sprouting in...
متن کاملSpecies Diversity of Trees and Forest Floor Plants in Oriental beech Forest Types of Shastkalate Educational and Research Forest, Gorgan)
Trees are the most important biological elements of forest ecosystems. The variability of the tree species composition inhabiting in the Oriental beech forest, not only forms different forest types but also has a remarkable impact on the species diversity of forest floor plants, due to the existence of trees in the overstory layer. In this research, forest types of an an Oriental beech were ide...
متن کاملAttachment of Natural Lightning Flashes to Trees: Preliminary Statistical Characteristics
Lightning attachment to trees was studied based on 37 trees that were struck in Finland in summer 2007 and 2008. The type and severity of lightning damage was correlated with multiple parameters related to the flash, the meteorological characteristics of the strike time, and the surroundings of the tree. Damage was classified into three categories: bark-loss (minor), wood-loss (extensive), end ...
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ژورنال
عنوان ژورنال: Science
سال: 1891
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.ns-18.444.79-a