Results 81 to 90 of about 10,548 (206)

Chemical changes of polysaccharides in heat-treated European beech wood

Journal of Wood Science
This work deals with the influence of different heat treatment temperatures (140, 150, 160, 170, 180, 190, 200, and 210 °C) on changes in sapwood and red heartwood of European beech (Fagus sylvatica L.). According to the results of wet chemistry methods,
Miroslav Gašparík, Aleš Zeidler, Eva Výbohová, Danica Kačíková, František Kačík   +4 more
doaj   +1 more source

Effect Of Planting Spacing In Production And Permeability Of Heartwood And Sapwood Of Eucalyptus Wood

Floresta e Ambiente, 2019
The objective of this work was to evaluate the influence of different useful areas provided by the planting spacings (3 × 1, 3 × 2, 3 × 3, 3 × 4 m) on the production and permeability of heartwood and sapwood of Eucalyptus grandis and Eucalyptus grandis ×
Alice Soares Brito, Graziela Baptista Vidaurre, José Tarcísio da Silva Oliveira, João Gabriel Missia da Silva, Brunela Pollastrelli Rodrigues, Angélica de Cássia Oliveira Carneiro   +5 more
doaj   +1 more source

A kocsányos tölgy (Quercus robur L.) gesztesedédének és geszthibáinak kémiai vizsgálata = Chemical investigation of heartwood formation and heartwood defects of Pedunculate oak (Quercus robur L.) [PDF]

, 2009
A kocsányos tölgy (Quercus robur L.) értékes, kötelezően színesen gesztesedő fafaj. Egyre elterjedtebb geszthibája a "gyűrűs" elszíneződés, amely jelentős értékvesztést okoz.
Albert, Levente, Csepregi, Imre, Hofmann, Tamás, Koloszár, József, Németh, Zsolt István, Pozsgainé Harsányi, Mónika, Rétfalvi, Tamás   +6 more
core  

Survey on the chemical composition of several tropical wood species [PDF]

, 2019
Variability in the chemical composition of 614 species is described in a database containing measurements of wood polymers (cellulose, lignin and pentosan), as well as overall extraneous components (ethanol-benzene, or hot water extracts and ash, with a ...
Gérard, Jean, Paradis, Sébastien, Thibaut, Bernard   +2 more
core   +3 more sources

Trait‐Based Prediction of Extinction Risk and Conservation Strategy for Traditional Chinese Medicinal Plants in China 基于性状的中药植物灭绝风险预测与保护策略研究

Integrative Conservation, Volume 5, Issue 1, Page 150-163, March 2026.
Our research allows us to understand the predictors of extinction risk in traditional Chinese medicinal (TCM) plant species with known threat status, and incorporate this knowledge to predict other TCM plants with unknown conservation status in China so as to improve the overall effectiveness of conservation strategies.
Yuhan Zheng, Jingjing Zhao, Wenbo Liao, Amy Hinsley, Tien Ming Lee   +4 more
wiley   +1 more source

Concentration and Distribution of Nuclei and Plastids in Xylem Cells in Cunninghamia lanceolata and Aquilaria sinensis

BioResources, 2015
After programmed cell death (PCD), heartwood formation, storage, and processing, wood DNA degradation occurs to varying degrees. The concentration and distribution of nuclei and plastids in xylem cells of Cunninghamia lanceolata and Aquilaria sinensis ...
Rong Zhang, Kuiwu Xu, Kelin Ye
doaj   +1 more source

Epixylic microbial communities as key regulators of methane emissions from submerged wood in a tropical hydroelectric reservoir

Limnology and Oceanography, Volume 71, Issue 3, March 2026.
Abstract Tropical hydroelectric reservoirs are recognized hotspots for greenhouse gas emissions, yet the role of submerged forests in these emissions remains poorly understood. In this study, we investigated the contribution of standing dead trees and their associated epixylic biofilms to methane (CH4) and carbon dioxide (CO2) emissions in the ...
Fanny Colas, Léa Cabrol, Jean‐Marc Baudoin, Yves Prairie, Jacques Beauchêne, Vincent Chanudet, Etienne Dambrine, Sophie Guasco, Frederick Jacob, Arthur Szylit, Corinne Valette, Régis Vigouroux, Patricia Bonin   +12 more
wiley   +1 more source

Anatomi Jaringan Kayu Terserang Penyakit Lapuk Kayu Teras

Jurnal Manajemen Hutan Tropika, 2007
A study was undertaken to determine the anatomical structures of decaying heartwood in the stem part of Acacia mangium Willd where the branch stubs were found.
Simon Taka Nuhamara, Soetrisno Hadi
doaj  

Chemical and structural changes during heartwood formation in Pinus sylvestris [PDF]

Forestry, 2003
Summary The aim of the present study was to describe the spatial distribution of some chemical and structural changes in the transition zone between sapwood and heartwood of Scots pine (Pinus sylvestris L.) in order to get a better understanding of heartwood formation.
openaire   +1 more source

Self‐ and Electrodic‐Potential Response to Hydrological and Biogeochemical Processes in the Soil‐Tree Continuum

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 3, March 2026.
Abstract Forest sustainability is regulated by the interplay between water and biochemical fluxes within the soil–tree continuum. However, capturing the daily to seasonal interplay of these ecohydrological and biological processes remains a major challenge.
M. Dumont, X. Takver, K. M. Jarecke, R. Yilangai, L. Slater, E. B. Graham, H. R. Barnard, P. L. Sullivan, K. Singha   +8 more
wiley   +1 more source