Radiocarbon measurements on submerged forest floating chronologies
The submerged forests along the west coast of England and Wales provide a unique source of wood for radiocarbon/dendrochronological studies. We report C age determinations on sequential growth increments from three floating chronologies. A sampling
Introduction to vegetation structure and modifications of tree forms on border habitats of forests is followed by a description of geo-conditions in the Hercynian district. First prerequisite for border habitats is an extrem relief| soil and climate
differenciate the vegetation of them. Rivers rocky valleys, rocks and rubble dumps on basaltic and phonolitic hills and rocky steep slopes in the Triasic hilly country are the most important border habitats of forests of this area. On not calcareous
or calcareous soils on dependence of the climate one can find various complexes of vegetation. They contain bushlike forests, shrubs, forb fringes and xerothermic grasslands. The position of these complexes in the landscape and the relation to zonal vegetation
are represented by many examples. Sociological, distributional and ecological conditions, structure and floristic combination of border forests and forb fringes are characterized.
A mathematical model can be used to simulate the effect of a variation in forest cover on snowmelt runoff and provides important data for basin management. Simulations with the CEQUEAU square-grid system model on a >3000km basin confirm
the possibility to modify snowmelt synchronization between different parts of a basin by changing the distribution and/or percentage of its forest cover. In the given example, if the forest cover had been distributed uniformly so as to occupy 50% or the total area
utilisation of plant productivity in various agricultural and forestry systems. A case study illustrates the principles and methods of vegetation productivity in a British forest. The conclusion places this study in a wider British and world context