نتایج جستجو برای: fagus type

تعداد نتایج: 1343801  

2016
Nicolas Latte Jérôme Perin Vincent Kint François Lebourgeois Hugues Claessens Juan Carlos Linares

Global change—particularly climate change, forest management, and atmospheric deposition—has significantly altered forest growing conditions in Europe. The influences of these changes on beech growth (Fagus sylvatica L.) were investigated for the past 80 years in Belgium, using non-linear mixed effects models on ring-width chronologies of 149 mature and dominant beech trees (87–186 years old). ...

Journal: :Tree physiology 2006
Têtè S Barigah Tharwat Ibrahim Aurore Bogard Benjamin Faivre-Vuillin Louis André Lagneau Pierre Montpied Erwin Dreyer

We assessed the irradiance-related plasticity of hydraulic architecture in saplings of Betula pendula Roth., a pioneer species; Acer pseudoplatanus L., Fraxinus excelsior L. and Quercus robur L., which are post-pioneer light-requiring species; and Quercus petraea Matt. Liebl. and Fagus sylvatica L. Plants were grown in pots in 36%, 16% and 4% of full sunlight. Hydraulic conductance was measured...

2014
Felix Haesler Alexandra Hagn Marion Engel Michael Schloter

Many bacteria belonging to the phylum of Actinobacteria are known as antagonists against phytpathogenic microbes. This study aimed to analyze the effect of ozone on the actinobacterial community of the rhizosphere of four years old European beech (Fagus sylvatica L.) trees during different time points of the vegetation period. Effects of ozone on the total community structure of Actinobacteria ...

2004
Claudia Alvarez-Aquino Guadalupe Williams-Linera Adrian C. Newton

The cloud forests of Mexico have been degraded and severely fragmented, and urgently require restoration. However, progress with restoration has been constrained by a lack of information concerning the seedling ecology of native tree species. An experiment was therefore conducted to assess the influence of different environmental factors on the seedling survival and growth of four native tree s...

2016
Ling‐Xiao Ying Ting‐Ting Zhang Ching‐An Chiu Tze‐Ying Chen Shu‐Jin Luo Xiao‐Yong Chen Ze‐Hao Shen

The beech species Fagus hayatae is an important relict tree species in subtropical China, whose biogeographical patterns may reflect floral responses to climate change in this region during the Quaternary. Previous studies have revealed phylogeography for three of the four Fagus species in China, but study on F. hayatae, the most sparsely distributed of these species, is still lacking. Here, mo...

2015
Iftekhar U. Ahmed Andrew R. Smith David L. Jones Douglas L. Godbold

22 In terrestrial environments, soil organic matter (SOM) is the largest organic carbon 23 (C) pool. The quantity and quality of organic carbon in soils can be affected by 24 vegetation through influencing the inputs and outputs of SOM. We examined how 25 storage and quality of C in SOM were affected by vegetation under grass cover or 26 single and a polyculture plot of Betula pendula, Alnus gl...

Journal: :Journal of experimental botany 2003
Markus Burghardt Markus Riederer

The water permeability of the leaves of three deciduous plants (Acer campestre, Fagus sylvatica, Quercus petraea) and two evergreen plants (Hedera helix, Ilex aquifolium) was analysed in order to assess its role as a mechanism of drought resistance. Cuticular permeances were determined by measurement of the water loss through adaxial, astomatous leaf surfaces. Minimum conductances after complet...

2014
Liam Cavin

1. The effect of extreme climate events on ecosystems is an important driver of the bioticresponse to climate change. For forests, extreme drought has been linked to negativeeffects such as large scale mortality and reduced primary production. However, theresponse of plant communities to extreme drought events remains poorly understood. 2. We used mortality data from a long term mon...

2016
Marco Vanoni Harald Bugmann Magdalena Nötzli Christof Bigler

Drought entails important effects on tree physiology, which may result in short- to long-term radial growth decreases. While the majority of studies have focused on annual drought-related variability of growth, relatively little is known about sustained growth decreases following drought years. We apply a statistical framework to identify climatic factors that induce abrupt growth decreases and...

Journal: :Tree physiology 1997
J Schell

The presence and concentration of mineral nutrients and organic acids were analyzed in root xylem sap of mature beech trees (Fagus sylvatica L.). An interdependence between malate concentration, pH, and calcium and magnesium concentrations was observed. Significant correlations were found between low pH values and high calcium and magnesium concentrations, low pH values and high malate concentr...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید