Medium-term effects of afforestation on sediment dynamics in a water supply catchment : a mineral magnetic interpretation of reservoir deposits in the Macclesfield Forest, N. W. England
catchment. Changes in hydraulic stresses subsequent to road construction and forest development, in association with unstable Pleistocene deposits, may provide an explanation for these events.
paleosol complex is a chernozem-like double forest-steppe soil horizon, its estimated age is 40-45 ka. The Basaharc Lower paleosol is a remarkably well-developed chernozem-like forest steppe soil. In the BD and BA paleosols charcoal fragments of Quercus cf
Interrelations between vegetation, the regime of soil temperature and soil invertebrates within undisturbed biogeocoenosises of dark boreal coniferous forests with dominating Abies sibirica. The ecological effects of man-influenced substitution
of dark coniferous forests by secondary grass-vegetation partly can be compared with the zonal natural landscapes, although at most sites a natural revival of typical boreal associations is possible.
Larvae of the geometrid Epirrita autumnata (Bkh.) periodically attack the mountain birch. Birch forests of the Finmarks vidda highland plain in northern Norway, however are seldom defoliated. The hypothesis that the birch forest of the Finmark
The analysis of land use trend in Slovakia from 1900 to 2 000 points out a conspicious decreasing tendency in agricultural as well as arable land and considerable increase of non-agricultural land with intense growth of forest land. It is necessary
A comparative investigation of arable soils and soils with spruce vegetation is described. The arable soils are less acid and have higher contents of P, Ca, Mg and K than the forest soils. The spodic B horizons present in all soils investigated
The study discusses the outlet conditions of upper Luzicka Nisa river. Very important for the future changes are damages caused in forests by SO2 emissions, increasing speed of outlets. - (MS)
Certain hydrologic and climatic changes rather typical when coming from taiga to tundra also occur about the outskirts of Nordic fjeld regions. The most important climatic factor is the sufficiency of summer heat for forests controlling the one
annual soil losses due to surface water erosion| (3) determining the areas with potential wind erosion| (4) calculation of forest areas subjected to water erosion| (5) estimation of type and volume of hydrotechnical preventive measures to stabilize shower
Detailed morphological, physical and chemical analysis of a sequence of soil profiles allows to explain an acidification gradient which is rather unusual on limestone and corresponds to a continuum of forest types whose extremes belong to the Carici