Results 21 to 30 of about 24,131 (226)

Water uptake by trees in a riparian hardwood forest (Rhine floodplain, France) [PDF]

open access: yes, 2008
Water flow in the soil–root–stem system was studied in a flooded riparian hardwood forest in the upper Rhine floodplain. The study was undertaken to identify the vertical distribution of water uptake by trees in a system where the groundwater is at a ...
Armstrong   +27 more
core   +3 more sources

Gallery Characteristics and Life History of the Ambrosia Beetle Trypodendron betulae (Coleoptera: Curculionidae: Scolytinae) in Birch [PDF]

open access: yes, 2017
Trypodendron betulae Swaine distributed attack entrance holes uniformly over the surface of standing stressed sub-canopy birch trees. Male and female pairs constructed galleries consisting of an entrance tunnel about 20 mm in length and then primary and ...
Allen, Michael   +4 more
core   +3 more sources

Sapwood hydraulic conductivity and leaf area – sapwood area relationships following thinning of aEucalyptus nitensplantation [PDF]

open access: yesPlant, Cell & Environment, 2002
AbstractThis study tested the hypothesis that the relationship between leaf area (projected, or one‐sided) and sapwood area inEucalyptus nitens(Deane and Maiden) Maiden is affected by thinning treatment. However, no difference in the relationship between leaf area and sapwood area was found 8 years after thinning.
J. L. Medhurst, C. L. Beadle
openaire   +1 more source

The applicability of the Pipe Model Theory in trees of Scots pine of Poland

open access: yesJournal of Forest Science, 2008
In order to test the application importance of the Pipe Model Theory and to develop models for the share of sapwood in tree stems, a total of 114 Scots pines (Pinus sylvestris L.) were felled within the natural range of this species in three natural ...
T. Jelonek   +5 more
doaj   +1 more source

Comparison of Pinus Pinea Heartwood and Sapwood Pulps Obtained by Soda-Potassium Borohydride Method

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2020
This study was aimed to compare pulp properties of Pinus pinea heartwood and sapwood pulp obtained from modified soda method and to investigate effects of potassium borohydride (KBH4) used as a protective agent in cooking processes.
Ahmet Tutuş   +2 more
doaj  

Acacia melanoxylon in Argentina: heartwood content and its relationship with site, growth and age of the trees

open access: yesForest Systems, 2017
Aims of study: To characterize the wood of Acacia melanoxylon in relation to its potential use in the construction and furniture industry, here we determined the heartwood and sapwood content and distribution within the stem and analyzed their ...
Dora-Virginia Igartúa   +2 more
doaj   +1 more source

Detection of Emerald Ash Borer Infestations in Living Green Ash by Noninvasive Electronic-Nose Analysis of Wood Volatiles

open access: yesBiosensors, 2019
The emerald ash borer (EAB) has been the most destructive and costly nonnative insect to threaten the health of ash (Fraxinus) species in North America for at least the past 25 years. The development of methods for detecting visually-hidden EAB galleries
A. Dan Wilson   +3 more
doaj   +1 more source

Buprestidae, Cerambycidae, and Scolytidae Associated with Successive Stages of \u3ci\u3eAgrilus Bilineatus\u3c/i\u3e (Coleoptera: Buprestidae) Infestation of Oaks in Wisconsin [PDF]

open access: yes, 2017
The species of Buprestidae, Cerambycidae, and Scolytidae found in association with Agrilus bilineatus (Weber) in declining oaks, Quercus spp., in Wisconsin, were Chrysobothris femorata (Olivier) and Dicerca sp.
Benjamin, Daniel M   +2 more
core   +2 more sources

Determination of differences in morphology between sapwood and heartwood cells of Pinus pinea and Robinia pseudoacacia

open access: yesTurkish Journal of Forestry, 2015
In this study, the differences between sapwood and heartwood in fiber morphology on the samples prepared from Pinus pinea and Robinia pseudoacacia were investigated. For this aim, cell length, cell width, lumen width, wall thicknesses were measured.
Ferhat ÖZDEMİR   +3 more
doaj   +1 more source

Radial variations in xylem sap flux in a temperate red pine plantation forest

open access: yesEcological Processes, 2021
Background Scaling sap flux measurements to whole-tree water use or stand-level transpiration is often done using measurements conducted at a single point in the sapwood of the tree and has the potential to cause significant errors. Previous studies have
Alanna V. Bodo, M. Altaf Arain
doaj   +1 more source

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