Results 101 to 110 of about 9,924 (218)
Sapwood area drives growth in mountain conifer forests
, 2012 [EN] 1.It is expected that climate warming will enhance tree growth of mountain conifer forests in cold regions. However, trees have shown unstable, age-related and site-dependent growth responses to climate throughout the past century, but information ...
Galván, Juan Diego +4 more
core +1 more source
Rates of Ethylene Production by Parenchyma Cells in Black Walnut Sapwood
, 2007 Black walnut sapwood samples, representing high and low extremes in ethylene production rates, were anatomically analyzed to determine the relation between the amount of parenchyma in the sapwood and the rate of ethylene production.
Rietveld, W. J. +3 more
core
The release of Hydrocarbons from softwood drying: Measurement and modeling
Maderas: Ciencia y Tecnología, 2004 The release of volatile organic compounds (VOC) during the drying of Norway spruce and Scots pine was experimentally studied. Heartwood and sapwood were separately dried at 60 ºC.
Peter Bengtsson
doaj
Radial compression strength can predict the hydraulic vulnerability of mature Norway spruce sapwood
Maderas: Ciencia y TecnologíaHydraulic testing of isolated sapwood from mature tree trunks is time-consuming and prone to errors, whereas the measurement of compression strength is a standardized and rapid wood technological application.
Sabine Rosner +3 more
doaj +1 more source
Comparative Evaluation of Selected Properties of Stem and Branch Wood of Terminalia superba
South-East European ForestryLogging residue is a growing national concern in Ghana, yet it has not received adequate attention. Efficient utilization of both stems and branches can promote sustainable use of limited timber resources while minimizing waste.
Francis Kofi Bih
doaj +1 more source
DRYING OF SAPWOOD ANALYZED AS AN INVASION PERCOLATION PROCESS
Maderas: Ciencia y Tecnología, 2006 The sapwood fibers in green softwood are normally filled - or nearly filled - with free water. This water forms a continuous phase through the narrow bordered pits between fiber lumens. In a drying process water evaporates from the menisci formed at these narrow throats and initially located close to the surface of the wood. As the amount of free water
openaire +3 more sources
On the penetrability of various glues in chips from pine sapwood and heartwood
, 2001 Investigation of the penetrability of various glues [urea-formaldehyde resin (UF-resin), phenol-formaldehyde resin (PF-resin), melamine-urea-phenol-formaldehyd made of pine sapwood and heartwood revealed: the various glues penetrate chips from pine ...
Roffael, Edmone, +3 more
core +1 more source
Sapwood basal area as an estimator of individual tree growth
The effectiveness of sapwood basal area as an estimator of individual tree basal area growth was tested on several young, even-aged Douglas-fir stands, stocked at varying densities. For all densities, ranging from partially open-grown to very overstocked
Newman, Kenneth
core
Relationship Between Tree Age and Sapwood/Heartwood Width in Populus Tremuloides Michx.
, 2007 Populus tremuloides Michx. has become a major commercial species within the last decade. The proportion of sapwood and heartwood has a significant impact on various uses. The relationship between tree age and sapwood/heartwood width was studied using 101
Hazenberg, G., Yang, K. C.
core
Stand sapwood basal area : an indicator of tree vigor
The control that stand leaf area exerts upon individual tree vigor was tested on a heterogeneous, even-aged Douglas-fir stand infected by Phellinus root rot. Tree vigor, or growth efficiency ratio, was defined as the current basal area growth per unit of
Oren, Ram
core