Results 71 to 80 of about 10,701 (235)

The proportion of heartwood in conifer (Pinus sylvestris L., Picea abies [L.] H. Karst.) trunks and its influence on trunk wood moisture -

Journal of Forest Science, 2013
As the tree age increases, the formation of heartwood takes place in the central part of the tree. Since there is a large difference in the moisture content between sapwood and heartwood in conifers, the proportion of heartwood expressed in percentage is
M. Millers
doaj   +1 more source

Diversity of decay resistance strategies of durable tropical woods species: Bocoa prouacencsis Aublet, Vouacapoua americana Aublet, Inga alba (Sw.) Wild [PDF]

, 2014
International audienceThe study of decay resistance in wood is of interest for wood end-users but also for the global carbon balance since wood biodegradation is a key driver of forest ecosystem functioning through its impacts on carbon and nutrient ...
Amusant, Nadine, Beauchêne, Jacques, Nigg, M, Thibaut, Bernard   +3 more
core   +3 more sources

Host preferences of non‐native Acalolepta aesthetica (Coleoptera: Cerambycidae) on the Island of Hawaiʻi

Agricultural and Forest Entomology, EarlyView.
Acalolepta aesthetica is a non‐native cerambycid established on the Island of Hawaiʻi. We show its preferred hosts are woody species that are highly valued for agricultural, horticultural and cultural uses. We used a resource selection function to estimate host preferences and found that kukui (Aleurites moluccanus), the state tree, was preferred ...
Helen R. Sofaer, Blake J. Miles, Jorden A. Zarders, Ellen J. Dunkle, Renee L. Corpuz, Sheina B. Sim, Robert W. Peck   +6 more
wiley   +1 more source

Evaluation of immunomodulatory activity of " Shirishavaleha"-An Ayurvedic compound formulation in albino rats

Journal of Ayurveda and Integrative Medicine, 2011
The immunomodulatory activity of Shirishavaleha prepared from two different parts of Shirisha (Albizia lebbeck Benth), i.e., Twak (Bark) and Sara (Heartwood) as main ingredients was evaluated for humoral antibody formation and cell-mediated immunity in ...
Shyamlal Singh Yadav, Galib, P K Prajapati, B K Ashok, B Ravishankar   +4 more
doaj   +1 more source

Comparative Metabolomics and Transcriptome Analysis Reveal the Fragrance-Related Metabolite Formation in Phoebe zhennan Wood

Molecules, 2023
Nanmu (Phoebe zhennan) has a unique fragrance and is a high-quality tree species for forest conservation. The types and contents of volatile compounds in different tissues of nanmu wood are different, and the study of its volatile metabolites can help us
Hanbo Yang, Fang Wang, Wenna An, Yunjie Gu, Yongze Jiang, Hongying Guo, Minhao Liu, Jian Peng, Bo Jiang, Xueqin Wan, Lianghua Chen, Xiong Huang, Fang He, Peng Zhu   +13 more
doaj   +1 more source

Ring‐Width Dendrochronology, Isotopic Dendrochronology and Radiocarbon Dating of Timbers From the Spire Scaffold of Salisbury Cathedral, Wiltshire, England

Archaeometry, EarlyView.
ABSTRACT Ten timbers from the spire scaffold of Salisbury Cathedral were dated using a combination of ring‐width dendrochronology, stable oxygen isotopic dendrochronology and radiocarbon dating. Seven timbers were coeval and assigned a combined empirical felling date range of 1352–1378, which was further refined to 1351–1359 (OxCal 95.4%).
Kutsi D. Akcicek, Daniel Miles, Christopher Bronk Ramsey, Darren Davies, Danny McCarroll, Neil J. Loader   +5 more
wiley   +1 more source

Dunántúli tölgyek gesztesedési folyamatai [PDF]

, 2009
The two main parts of a log, sapwood and heartwood, have different properties. With regard to utilization in the wood industry, the latter is of great importance because of its higher durability and better mechanical properties. In case of wood species
Fehér, Sándor, Krajcsák, Zoltán
core  

Predispositions and symptoms of Agrilus borer attack in declining oak trees [PDF]

, 2004
International audienceThis paper presents results of a semi-quantitative study on the role of Agrilus biguttatus F. in oak decline in Belgium. Larvae of this insect breed in living subcortical tissues of European oak.
Stevens, Marc, Tirry, Luc, Van Acker, Joris, Vansteenkiste, Dries   +3 more
core   +3 more sources

Aspects of hybrid larch (Larix X eurolepis Henry) as a potential tree species in southern Swedish forestry [PDF]

, 2003
The interest in growing hybrid larch (Larix × eurolepis Henry) in southern Sweden has increased in recent decades, one of its assumed advantages being high volume growth.
Larsson-Stern, Marie
core  

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