Results 41 to 50 of about 9,924 (218)

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

Employing a Hysteresis Approach to Analyze Shifts in Tree Physiological Thresholds in Response to Drought

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Drought‐induced tree mortality underscores the need for improved physiological models to predict tree responses to water stress. We employed a hysteresis modelling approach analyzing diel water absorption and desorption cycles to understand drought‐induced shifts in physiological thresholds.
Mauro Brum   +7 more
wiley   +1 more source

Lack of Hydraulic Acclimation in Response to Multiple Droughts and Recovery

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Human‐caused climate change is expected to bring more frequent and extended droughts with shorter wet periods of relief in between for many regions of the world. Critical knowledge gaps remain around the extent to which tree species can acclimate physiologically to repeated droughts.
Jaycie C. Fickle   +4 more
wiley   +1 more source

Lignification and cell wall thickening of ray parenchyma cells in Scots pine sapwood [PDF]

open access: yes, 2021
Scots pine exhibits variations in ray anatomy, which are poorly understood. Some ray parenchyma cells develop thick and lignified cell walls before heartwood formation.
Treu, Andreas, Zimmer, Katrin
core   +1 more source

Overcoming environmental constraints to high‐yielding eastern cottonwood productivity in the southeastern United States

open access: yesAnnals of Applied Biology, Volume 189, Issue 1, July 2026.
The rising demand for biomass highlights Populus deltoides as a productive woody species. A 6‐year study in Sumter County, SC, assessed the effects of irrigation, fertilization, and clonal variation on growth and productivity. Eight clones were studied under two irrigation levels (33 and 1500 kPa) and nutrient rates (high: up to 182 kg N ha−1; low: 50%
G. A. Tuskan   +9 more
wiley   +1 more source

SAPWOOD OAK CLASSIFICATION USING GLOBAL AND LOCAL FEATURES [PDF]

open access: yes, 2020
Classification of wood images has always fascinated researchers and is a hot area of research as it brings automation in wood industry. Wood comes in different types and for a given wood; it can have some good part and some bad part like cracks, water ...
Asim Anees   +3 more
core  

Is There Life After Death? The Role of Standing Dead Phorophytes in Supporting Tropical Epiphyte Diversity

open access: yesBiotropica, Volume 58, Issue 4, July 2026.
ABSTRACT Global increases in tree mortality from climate change and land‐use are altering forest structures, impacting canopy‐dwelling plants like vascular epiphytes, which depend on host trees (phorophytes). When a phorophyte dies standing, it becomes a snag, the local substrate conditions change and microclimatic exposure may increase, particularly ...
Camila Nardy Delgado   +3 more
wiley   +1 more source

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1091-1119, June 2026.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson   +9 more
wiley   +1 more source

Heartwood and sapwood allometry of seven Chinese temperate tree species

open access: yes, 2010
• Allometry of sapwood/heartwood is essential for understanding tree growth, water transport and carbon allocation, timber production and use, but such an allometry is lacking for Chinese temperate tree species.
Chuankuan Wang   +7 more
core   +1 more source

The quality comparison of particleboards produced from heartwood and sapwood of european larch

open access: yesMaderas: Ciencia y Tecnología, 2019
In this paper, the impacts of heartwood and sapwood usage on the physical, mechanical, and surface properties and formaldehyde emission of particleboard are investigated. European Larch (Larix decidua) trees are chosen as a raw material.
Selahattin Bardak   +2 more
doaj  

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