Results 41 to 50 of about 10,548 (206)
Extractives elucidation of Taiwania cryptomerioides sapwood
Journal of Wood Science, 2021 Taiwania (Taiwania cryptomerioides Hayata) has long been regarded as a living fossil from the Tertiary period of Mesozoic Era for its distinguished yellowish-red color with purplish-pink streaks presented in its heartwood.
Nai-Wen Tsao +3 more
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Tree growth acceleration and expansion of alpine forests: The synergistic effect of atmospheric and edaphic change. [PDF]
, 2016 Many forest ecosystems have experienced recent declines in productivity; however, in some alpine regions, tree growth and forest expansion are increasing at marked rates.
Horwath, William R +5 more
core +2 more sources
Spatiotemporal Variation and Covariation of Heartwood Color in Planted Teak Wood from Ghana
BioResources, 2022 Heartwood color is a complex trait that affects the economic and aesthetic value of the wood but is highly variable. How the color of the heartwood varies spatially and temporally is poorly understood.
Jerry Oppong Adutwum, Junji Matsumura
doaj +2 more sources
HeliyonCatalpa bungei ‘Jinsi’, a cultivar of C. bungei C. A. Mey., is valued for its heartwood with good overall mechanical properties, naturally durable and golden-yellow color. Little is known about heartwood formation in C. bungei ‘Jinsi’ trees. The behavior
Pingping Guo +5 more
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Pine heartwood formation as a maturation phenomenon
Journal of Wood Science, 2002 The inverse of the relative increment rate of size is proposed as a measure of the maturity of a forest tree. The heartwood content within bole cross sections is modeled semiempirically using asymptotic fitting. It is shown that the present proposal for a definition of maturity statistically explains heartwood content far better than age or size.
Kärenlampi, P.P., Riekkinen, M.
openaire +1 more source
Radial Distribution of Lipophilic Extractives in Walikukun (Schoutenia ovata Korth.) Wood
South-East European ForestryWalikukun (Schoutenia ovata Korth.) is a commercially significant wood species in Indonesia. Heartwood, in particular, is important due to the natural durability and aesthetics, while lipophilic extractives play a crucial role in the formation. Therefore,
Rizki Arisandi +5 more
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Metsanduslikud Uurimused, 2022 We investigated the distribution of extractive, phenolic, and polysaccharides content of young S. mahagoni trees aged 1 to 5 years. The wood powder materials in two vertical positions (bottom and top) were successively extracted using n-hexane, methanol,
Arisandi Rizki +3 more
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Radial Variations of Vibrational Properties of Three Tropical Woods [PDF]
, 2011 International audienceRadial trends of vibrational properties, including the specific dynamic modulus (E'/r) and damping coefficient (tand), were investigated for 3 tropical rainforest hardwood species, Simarouba amara, Carapa procera and Symphonia ...
Alméras, Tancrède +5 more
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Tree crown architecture: a tool for decay resistance evaluation [PDF]
, 2013 The variability of natural durability contributes to the bad perception of some wood end-users. In our search, we need to adjust our methods and strategies to estimate natural durability and extract higher value from wood resources.
Amissa Adima, Augustin +5 more
core
Exploring site formation and building local contexts through wiggle-match radiocarbon dating: re-dating of the Firth of Clyde Crannogs, Scotland [PDF]
, 2017 There are at least four wooden intertidal platforms, also known as marine crannogs, in the Firth of Clyde, on the west coast of Scotland. The interpretation of these sites partly depends on their dating and, if coeval, they could point to the presence of
Cook, Gordon +3 more
core +1 more source