Results 1 to 10 of about 2,948,588 (299)
Does Cedrela always form annual rings? Testing ring periodicity across South America using radiocarbon dating. [PDF]
Trees (Berl West), 2017 Radiocarbon dating shows thatCedrelatrees from Bolivia, Ecuador and Venezuela form one ring per year butCedrelatrees from Suriname form two rings per year.
Baker JCA +3 more
europepmc +2 more sources
Annual Rings of Growth in Carboniferous Wood [PDF]
Botanical Gazette, 1921 In a discussion of anatomical structure and climatic evolution, JEFFREY, emphasizes the absence of annual rings in Cordaitean wood from the Carboniferous in latitudes south of England as indicative of uniformity of climate, in contrast with the conditions in the Triassic period, in which coniferous wood with annual rings is found as far south as ...
W. Goldring
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Thickness Analysis of Beech Stems Using Annual Rings
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2021 This article deals with the evaluation of a thickness analysis on the vuts of beech wood using annual rings. The study was performed at the state enterprise Lesy SR, a branch plant in Smolenice on the territory of Forrest District Majdán.
Michal Daniš, Jindřich Neruda
doaj +3 more sources
Drvna Industrija, 2014 This paper shows results of specific elastic modulus and specific tensile strength in the resonance spruce wood [Picea abies (L.) Karst.] in relation to its heterogeneity within individual annual rings.
Waldemar Moliński +2 more
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Determination of the number of sapwood annual rings in oak in the region of southern Moravia
Journal of Forest Science, 2006 The paper deals with the determination of the number of sapwood annual rings in oak (Quercus sp.) in relation to altitude, locality and stand age. Several different groups of samples were used from two localities of southern Moravia.
M. Rybníček, H. Vavrčík, R. Hubený
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An Automatic Method for Counting Annual Rings in Noisy Sawmill Images [PDF]
International Conference on Image Analysis and Processing, 2009 The annual ring pattern of a log end face is related to the quality of the wood. We propose a method for computing the number of annual rings on a log end face depicted in sawmill production. The method is based on the grey-weighted polar distance transform and registration of detected rings from two different directions.
K. Norell
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Growth Rings in the Roots of Temperate Forbs are Robust Annual Markers
Plant Biology, 2006 Abstract: There is increasing interest in the analysis of annual growth rings in the secondary root xylem of perennial forbs (herb‐chronology). Therefore, we need to verify whether these growth rings are always formed annually. To investigate the formation of root rings we performed common garden experiments at two distinct sites in Switzerland.
von Arx G, Dietz H
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Water, Air and Soil Pollution, 2023 Heavy metals (HMs) in air pollution seriously threaten the environment. Although plant species are known as good biomonitors, it has not been determined which HM is absorbed by which plant and organs and how much traffic is caused.
Hatice Çobanoğlu +2 more
semanticscholar +1 more source
Environmental science and pollution research international, 2021 Among the environmental pollution elements, one of the most important problems of the world today, air pollution and heavy metal pollution that have gradually increased after the industrial activities, are of significant importance.
Ismail Koc
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