Results 121 to 130 of about 75,207 (269)

Similar Relative Carbon Costs for Construction and Storage of Sun and Shade Branches in Mature Temperate Trees

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Irradiance strongly affects the morphology, carbon (C) uptake and construction costs of leaves and branches. Within tree crowns, light decreases from the top downwards, but whether this translates to differences in the C balance of sun and shade branches remains unclear. Here, we combined a light‐driven photosynthesis model, parameterised with
Cedric Zahnd   +3 more
wiley   +1 more source

Analysis of Spontaneous Ignition Temperature and Flash Point for Predicting Fire Risk in Biomass Fuel Pellet Storage

open access: yesBioResources
Biomass pellet fuel is one of the alternative renewable energy sources, which has an important place in the fuel market. This article analyses the spontaneous ignition temperature and flash point temperature, which are the most important characteristics ...
Dušan Bóna   +4 more
doaj  

High radiosensitivity in the conifer Norway spruce (Picea abies) due to less comprehensive mobilisation of protection and repair responses compared to the radiotolerant Arabidopsis thaliana

open access: yesPlant Stress
Risk assessment and protection of plant communities in contaminated ecosystems require in-depth understanding of differential sensitivity to chronic ionising radiation in plants.
Payel Bhattacharjee   +10 more
doaj   +1 more source

Forest floor vegetation in Sweden [PDF]

open access: yes, 2012
In boreal forests, dwarf-shrubs (Vaccinium spp.) often dominate the forest floor and are key-stone species in ecosystems due to their importance for nutrient cycling and as a major food source for herbivores. Forestry affects the vegetation both directly
Hedvall, Pär-Ola
core  

Turgor loss point explains climate‐driven growth reductions in trees in Central Europe

open access: yesPlant Biology, EarlyView.
Leaf turgor loss point of native tree species shows a high predictive power over the observed growth anomalies in Central Europe during the extensive drought period between 2018 and 2020. Abstract As climate change thrives, and the frequency of intense droughts is affecting many forested regions, a mechanistic understanding of the factors conferring ...
N. Kunert, I. K. Münchinger, P. Hajek
wiley   +1 more source

A geometrical model of softwood anatomy for fluid mechanics simulations [PDF]

open access: yes, 2018
This paper demonstrates a model of softwood geometry that can be used for multiscale modelling of the longitudinal movement of water through spruce wood.
Adey-Johson, Robin   +4 more
core  

Redistribution of soil water by mature trees towards dry surface soils and uptake by seedlings in a temperate forest

open access: yesPlant Biology, EarlyView.
Mature beech trees redistributed soil water, equal to ca. 10% of stand transpiration, from deeper moist soils to dry surface soils, where it was taken up by seedlings of different tree species. Abstract Hydraulic redistribution is considered a crucial dryland mechanism that may be important in temperate environments facing increased soil drying–wetting
B. D. Hafner   +2 more
wiley   +1 more source

Natural regeneration of broadleaved tree species in southern Sweden [PDF]

open access: yes, 2001
The objective of the present thesis was to examine the effects of silvicultural treatments and seed dispersal from surrounding stands on the establishment of natural regeneration of broadleaved tree species in southern Sweden.
Karlsson, Matts
core  

Functional traits explain growth response to successive hotter droughts across a wide set of common and future tree species in Europe

open access: yesPlant Biology, EarlyView.
Functional traits can explain significant tree growth reductions in response to the 2018–2020 drought for a wide set of 71 species including angiosperms and gymnosperms. Moreover, four distinct response types emerged: ‘Sufferer’, ‘Late sufferer’, ‘Recoverer’ and ‘Resister’, with gymnosperms predominately appearing as ‘Sufferer’ and ‘Late sufferer ...
L. Kretz   +8 more
wiley   +1 more source

Thinning of Norway spruce

open access: yes, 2007
The objective of this thesis was to investigate volume and quality outcome from different thinning strategies in monocultures with Norway spruce. Two different experiments were set up at the Tönnersjöheden experimental forest in south west Sweden.
openaire   +1 more source

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