Three-yr-old spruce trees (Picea omorika) were exposed to a pollutant in the form of 100 and 225 nl l^-1 H₂S for three weeks. Contents of glutathione and cysteine in needles and fine roots as well as the number of chromosomal aberrations and the mitotic index in the root tips were determined. H₂S...

This special issue includes 29 of the papers presented at the Eurosilva workshop (those that were peer-reviewed). They discuss the importance of soil biology, chemistry and water in the functioning of forest trees and ecosystems.

This special issues contains a selection of 14 invited and contributed papers to the Symposium on Plant Adaptation to Stress.

A study was made of morphological and anatomical adaptations of beech (Fagus sylvatica) leaves from 40- to 50-year-old trees growing in a beech stand at Vallombrosa, central Italy, along the top ridge of the Apennine mountains. Sample foliage was compared from 2 contrasting sites in the area: a...

Norway spruce (Picea abies) trees in natural stands are exposed to complex interactions of environmental factors. Plant responses to these factors can enable conclusions to be drawn regarding the stress combinations. At particular field sites small-scale site factors, e.g., edaphic conditions,...

Evapotranspiration (ET) of model ecosystems of young spruce (Picea abies) and beech (Fagus sylvatica) trees, exposed to either ambient or elevated CO₂ (ambient + 200 µmol mol^-1) and high or low (65 vs. 6.5 kg N ha^-1 a^-1) wet nitrogen deposition for four years in open-top chambers was estimated from ...

During winter, changes in thickness of the cortex of twigs, branches and bole (stem) of a Cembran pine (Pinus cembra) tree were measured. The tree - height 10 m, d.b.h. 0.3 m - was growing on a SW-slope below the Klimahaus research station (1950 m altitude) near Innsbruck, Austria. It was...

Multivariate explorative statistics is a tool to analyse the structure of complex datasets. In tree physiological field studies, the relationship of multivariate biochemical plant responses to complex environmental impacts is of interest for bio-indication purposes. The present paper gives a short...

This special issue contains 29 selected papers presented at the symposium which deals with the morphological and physiological responses of different types of vegetation (e.g., microbial flora, grassland species, field crops, fruit crops, mire vegetation, fodder crops and forest trees) to various...

For almost two decades, water relations and carbon economy of a wide range of plant species in the Pacific Northwest of North America have been studied by researchers at the University of Washington, USA. In particular, studies have focused on the montane species, Abies amabilis, covering...