14 Result(s)
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Madeleine S. Günthardt-Goerg
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Article
Macro- and microscopic leaf injury triggered by ozone stress in beech foliage (Fagus sylvatica L.)
The diversity of structural injury underlying visible symptoms by ozone stress resulted from the succession of degenerative processes and programmed-cell death events, depending on the ozone up...
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Article
Growth and metal accumulation of young forest trees and understorey plants on contaminated topsoil: influence of subsoil and time
The study investigated the growth and metal accumulation over time of young forest vegetation growing on metal-contaminated topsoil above either acidic or calcareous subsoil.
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Article
Structural changes associated with drought stress symptoms in foliage of Central European oaks
In droughted oak foliage, water shortage and carbon starvation caused structural injury varying in severity between cell types and indicative of adaptive reversible and degenerative irreversibl...
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Article
Root growth of different oak provenances in two soils under drought stress and air warming conditions
Oaks are considered to be drought- and thermo-tolerant tree species. Nevertheless, species and provenances may differ in their ecological requirements. We hypothesised that (i) provenances from xeric sites are...
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Article
Initial Changes in Refilled Lysimeters Built with Metal Polluted Topsoil and Acidic or Calcareous Subsoils as Indicated by Changes in Drainage Water Composition
Soil translocation for recultivation of soil removed from construction sites and for the preparation of refilled lysimeters inevitably involves disturbance of soil structure, and, if intermediate storage is in...
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Article
Effects of heavy metal soil pollution and acid rain on growth and water use efficiency of a young model forest ecosystem
In a 4-year lysimeter experiment, we investigated the effects of topsoil heavy metal pollution (3,000 mg kg−1 Zn, 640 mg kg−1 Cu, 90 mg kg−1 Pb and 10 mg kg−1 Cd) and (synthetic) acid rain (pH 3.5) on tree growth...
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Article
Water regime of metal-contaminated soil under juvenile forest vegetation
In a three-year factorial lysimeter study in Open Top Chambers (OTCs), we investigated the effect of topsoil pollution by the heavy metals Zn, Cu, and Cd on the water regime of newly established forest ecosyst...
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Article
Influence of Soil Type on the Effects of Elevated Atmospheric CO2 and N Deposition on the Water Balance and Growth of a Young Spruce and Beech Forest
Sixteen open-top chambers, each equipped with two non-weighablegravity-drained lysimeter compartments, were used to investigate the impacts of elevated atmospheric carbon dioxide (CO2) concentration and nitrogen ...
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Article
Nutrition and the ozone sensitivity of birch (Betula pendula)
Cuttings of a single birch clone (Betula pendula) were grown in field fumigation chambers throughout the growing season in either filtered air (control) or 90/40 nl O3 l–1 (day/night). Both regimes were split in...
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Article
The influence of ozone and nutrition on δ13C in Betula pendula
In the cellulose of stems and leaves, δ13C was investigated in a birch clone (Betula pendula), which was exposed throughout the growing season to either <3 (control) or 90/40 nl O3 1-1 (day/night). Each regime wa...
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Article
Birke (Betula pendula): Mögliche Akklimatisierung an Ozon-Streß
Durch Ozonbegasung in einem Birkenklon hervorgerufene Änderungen der Blattfläche, der stomatären Dichte, der Länge und des Öffnungszustandes der Stomata sowie der Stärkeverteilung werden vorgestellt und hinsic...
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Article
Differentiation and structural decline in the leaves and bark of birch (Betula pendula) under low ozone concentrations
Leaf and bark structure of a birch clone (Betula pendula Roth) continuously exposed to charcoal-filtered air or charcoal-filtered air plus ozone (0.05, 0.075, 0.1 μl 1-1) was investigated throughout one growing s...
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Article
Seasonal growth, δ13C in leaves and stem, and phloem structure of birch (Betula pendula) under low ozone concentrations
The growth of potted birch cuttings (one clone of Betula pendula) was studied under low O3 concentrations (0, 0.050, 0.075, 0.100 μl l-1) throughout an entire growing season. With increasing O3 dose, 20–50% of al...
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Article
Impairment of gas exchange and structure in birch leaves (Betula pendula) caused by low ozone concentrations
Injury caused by low O3 concentrations (0, 0.05, 0.075, 0.1 μl 1-1) was analyzed in the epidermis and mesophyll of fully developed birch leaves by gas exchange experiments and low-temperature SEM: (I) after leaf ...
