نتایج جستجو برای: fraxinus excelsior l
تعداد نتایج: 618912 فیلتر نتایج به سال:
In Lithuania, the dieback of European ash (Fraxinus excelsior L.), caused by alien ascomycete Hymenoscyphus fraxineus, started in mid-1990s, resulting a large-scale decline F. and its dominated forest habitats. Nevertheless, recent inventories show presence several hundred hectares naturally regenerated stands. We used seven sites three planted progeny trials to collect leaves, shoots, roots, s...
Abstract In recent decades the vitality and physical stability of European ash trees in Germany have been reduced by dieback, especially when associated with stem collar necroses rots. This study was carried out to investigate composition fungal communities necroses. Filamentous fungi were isolated from 58 nine forest stands northern, eastern, central Germany. Obtained isolates identified a gen...
The aim of the study was to determine whether there are genetic variations in growth and leaf phenology (flushing and senescence) among populations of six woody species (Abies alba Mill., Acer pseudoplatanus L., Fagus sylvatica L., Fraxinus excelsior L., Ilex aquifolium L., and Quercus petraea (Matt.) Liebl.) along altitudinal gradients, using a common-garden experiment. We found (i) significan...
Background Forest soils are considered sinks for atmospheric C. Many studies revealed that tree species and their mycorrhizal association affect forest floor topsoil organic C (OC) total N, while the knowledge of effect on subsoil OC N is still scarce. Aims We aimed to identify (1) effects floor, (0–30 cm) (30–80 stocks vertical distribution (2) drivers soil distribution. Methods sampled under ...
Emerald Ash Borer (EAB), Agrilus planipennis, is a beetle that originates from East Asia. Upon invasion to North America in the early 2000s, it killed untold millions of ash trees. In European Russia, EAB was first detected Moscow 2003 and proved have potential also kill native (Fraxinus excelsior). The has since spread all geographic directions, establishing itself eastern Ukraine by 2019 poss...
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