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Aqueous glycerol delignification of wood chips and ground wood
Bioresource Technology, 1998Abstract Wood and agricultural materials were delignified in either glycerol or alkaline glycerol in aqueous or non-aqueous media, in an autoclave or at atmospheric pressure, for the production of pulps. In a typical run, increasing the reaction temperature from 438 to 498 K raised the lignin loss from 55.5 to 88.0%, but decreased the yield of the ...
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Ground‐Water Pollution by Wood Waste Disposal
Groundwater, 1975ABSTRACT Timber production and wood products industries in the Mid‐Willamette Valley of Oregon annually dispose of about 547,000 tons (500,000 tonnes) of wood and bark wastes. Land storage or disposal of these wastes can result in the generation of significant volumes of leachate.
H. R. Sweet, R. H. Fetrow
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Ground Water Contamination at Wood Treatment Facilities
Groundwater Monitoring & Remediation, 1991Abstract Ground water contamination profiles from five wood treatment facilities across the country have been compared. The distributions of organic priority pollutants at the five sites are similar, with the most common contaminants being polynuclear aromatic hydrocarbons and phenolic compounds. These contaminants are the predominant
Jeffrey K. Rosenfeld, Russell H. Plumb
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Effect of Vegetation Cover on the Ground Thermal Regime of Wooded and Non‐Wooded Palsas
Permafrost and Periglacial Processes, 2014ABSTRACTAlthough warming air temperatures are contributing to permafrost degradation across the circumpolar zone, understanding of permafrost and environmental feedbacks to climate change is limited. Palsas can be used as indicators of permafrost stability given their sensitivity to changes in temperature and precipitation.
Mélanie Jean, Serge Payette
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Ground vegetation net production in a Danish beech wood
Oecologia, 1975Biocontent of the above and below-ground parts of ground vegetation in a Danish beech forest was between 1685 and 3025 Kj/m2 (94.57 to 169.43g/m2). Net production as the difference between overall maximum and overall minimum biocontent was 1340 Kj/m2/yr (74.86g/m2/yr); as the sum of differences between species maximum and minimum 1832 Kj/m2/yr (111.49g/
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Bacteria Associated with Wood in Ground Contact
1975Bacteria have long been known to be associated with wood in service 1. In recent years the effect of bacteria on wood kept in water has been intensively studied and bacteria have been shown to increase the permeability of the sapwood of many timber species by destroying the pit membranes.2,3.
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Comparative durability of untreated wood in use above ground
International Biodeterioration & Biodegradation, 1995Abstract Cross-brace units constructed of 10 different softwoods and nine different hardwoods were exposed on a test fence in Wisconsin for up to 22 years. Sapwood was included for all species and heartwood for some. The objective of this study was to determine the above-ground longevity of these woods against decay.
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Ground beetle communities in Central Apennines beech woods
1994Samples of ground beetle coenoses from 24 sites referrable to Fagetalia from subcoastal tyrrhenian chains to Molise have been examined.
A. Vigna Taglianti, S. De Felici
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Use of Ground Penetrating Radar in the Evaluation of Wood Structures: A Review
Forests, 2021Brunela Pollastrelli Rodrigues +1 more
exaly