A lejtoprofil-analizis modszereinek alkalmazasa a lejtoformalodas vizsgalatara Nagyborzsony kornyékén. (Application of slope profile analysis methods in the investigation of slope development in the region of near Nagyborzsony)
Dynamique de versant ; Evolution de versant ; Géographie de l'Europe ; Géomorphométrie ; Hongrie ; Hongrie, Nord ; Nagyborzsony ; Profil de versant ; Versant
The object of this study is to examine how results of slope profile analysis might be used in explaining slope form and slope development. (CK).
Evolution des versants à la lumière du concept de l'érosion et de l'accumulation intermittentes
Concept ; Erosion ; Mass movement ; Slope ; Slope dynamics ; Slopeevolution
Accumulation ; Concept ; Dynamique de versant ; Erosion ; Evolution de versant ; Mouvement de masse ; Versant
The paper deals with the control over slopeevolution exerced by gravitative downslope movement of rock debris. A concept of saturated debris flow is introduced; the saturated flow accounts for interruption in the slope denudation. Along
with intentionally simplified models, the slopes are analysed which represent complex morpholithodynamic systems including elementary surfaces different in angles, but related to each other by the evolution processes. - (L'A.).
Slope aspect, slope length and slope inclination controls of shallow soils vegetated by sclerophyllous heath - links to long-term landscape evolution
Australia ; Biogeography ; Heath ; Impact ; New South Wales ; Sandstone ; Slope ; Slope dynamics ; Slope gradient ; Soil erosion ; Vegetation
controlled by topographic factors other than slope aspect and the influence of aspect on long-term landform evolution is overwhelmed by other processes as landscape dissection increases.
On upland Triassic sandstone slopes of the western Blue Mountains in Southeastern Australian highlands, nonswamp, sclerophyllous heath (shrub-dominated vegetation) on shallow soils is commonly found downslope and adjacent to sclerophyllous forest
on deeper soils. The AA. test the strength of the relationship between aspect and heath/shallow soil distribution, and consider other possible controls related to erosion thresholds and slope inclination. Shallow soils vegetated by heath are more strongly
Dynamique de versant ; Erosion ; Evolution de versant ; Glissement de terrain ; Hongrie ; Versant
This study deals with the sliding processes which play a decisive role in the slopeevolution of high banks. The sliding forms basically determine the morphological picture and the conditions of the erosion processes of the Hernác valley in NE
The geomorphic evolution of slopes and sediment chutes on forereefs
the topographic profiles. Comparisons of coral age and adjacent slope angle indicated that the steeper slopes are older and that mass failure of the slope reduces the steepness of the forereef front and destroys the coral community along the disturbed slope
. Slopes grow until reaching a critical steepness, after which underwater sliding of the over-steepened forereef front results.
Arid area ; California ; Dating ; Desert ; Geomorphometry ; Isotope dating ; Pleistocene ; Slope deposit ; Slope dynamics ; Slope gradient ; United States of America
The AA. employed rhyolite domes formed during the past million years in eastern California to study the evolution of boulder-dominated slopes. The slopes studied are steep and are made of coarse, boulder-sized blocks. These slopes include well
microlaminae, to produce a detailed million-year-long slope development history with broad implications for geomorphic theory.
The effects of deforestation on slope and channel evolution in the tectonically active Darjeeling Himalaya
Alluvial cone ; Deforestation ; Fault ; Himalaya ; India ; Land use ; Mass movement ; Quaternary ; Slope ; Soil erosion ; Tectonics ; Vertical movement
The main indicators of Quaternary tectonic uplift are the young mountain slopes of the Darjeeling Himalaya. Owing to deforestation and extensive land use, the earlier natural tendency of a dominance of channel incision over slope degradation has
changed to prevailing aggradation, even in steep valley reaches, caused by intensive slope mass movements and the overloading of the mountain creeks. Aggradation progresses upstream along the rivers dissecting the mountain front.
Slopeevolution on a flight of marine terraces in south Taranaki, New Zealand in The geomorphology of plate boundaries and active continental margins.
Detailed measurement of slope profiles in the terrace-front valleys of south Taranaki demonstrates very little change in mean slope angle up to 300,000 years. This paper also tests a modified version of the model of Chappell (1974) using these slope
data but it is difficult to verify the predicted importance of solution, corrosion and mass movement processes in the slope model (30 %, 20 %, 50 % respectively).
Synthèse des derniers travaux, anglo-saxons pour la plupart, sur les versants et la dynamique de versant: analyse des profils de versants, de l'érosion des pentes| synthèse sur la modélisation mathématique de l'évolution des versants| l'étude des
Evolution of undercut slopes on abandoned incised meanders in the Eastern Highland Rim of Tennessee, USA
Channel geometry ; Fluvial erosion ; Meander ; Model ; Palaeovalley ; Slope ; Slope gradient ; Stream ; Tennessee ; United States of America
, location-for-time reasoning, and computer modeling were used to study the evolution of slopes on valley walls of abandoned bedrock meanders on the Eastern Highland Rim.
Scarp retreat, slope stability, and the evolution of piedmont assemblages
Australia ; Earth surface processes ; Escarpment ; Model ; Piedmont ; Slope dynamics ; Soil erosion ; South Africa
The behaviour of escarpments in various structural and topographic settings determines style and rate of landscape development and of the piedmont landform assemblage. The various models are examined with relevance to the evolution of the landscapes
enclosed within it and of the geometrical relations with a landslide body, provides interesting informations as paleogeographic and paleoclimatic as on the slopeevolution within this part of the Eastern Liguria. - (NF)
In this paper, the AA. wish to indicate the localization of a scree slope in correspondence with the coast of the eastern promontory of the Gulf of La Spezia, whose formation, on the basis of its fabric features, of the age provided by a wood sample
Mass movement ; Model ; Sediment transport ; Slope ; Slope dynamics ; Slope gradient ; Soil erosion ; Splash
An erosion limited slopeevolution model is proposed as a generalisation for both flux (transport) limited and supply (weathering) limited conditions, which appear as extreme special cases. Distinctions can be made between rainsplash, rainflow
and rillwash, and there is scope for forecasting the evolution of an armour layer with grain size selectivity. The model has been implemented in finite difference form. Five model runs are shown as illustrations of the scope of the erosion limited approach.
A slope model for the Curvature Subcarpathians, Romania
Carpathian Mountains ; Deforestation ; Gully erosion ; Land use ; Lithology ; Mass movement ; Model ; Precipitation ; Romania ; Slope ; Slope dynamics ; Slope gradient
influences on present-day slopeevolution : rocks, geological structure, slope parameters, drainage and human pressure. A detailed mapping of the area and map analyses have proven that the diversity of slopeevolution is reflected by morphodynamics as well
The importance of earthquake-induced landslides to long-term slope erosion and slope-failure hazards in seimically active regions
California ; Earthquake ; Erosion rate ; Hawaii ; Landslide ; Methodology ; New Zealand ; Slope ; Slope dynamics ; Soil erosion ; United States
triggered landslides as well as measure of the importance of this process to regional slope-erosion rates and landscape evolution. Comparisons with other slope processes indicate that earthquake-induced landslides are the predominant agents of slope erosion
Linking weathering and rock slope instability : non-linear perspectives
Biogenic process ; Duricrust ; Freezing ; Mass movement ; Rockfall ; Slope ; Slope dynamics ; Weathering
Weathering is linked complexly to the erosion and evolution of rock slopes. Weathering influences both the strength of rock slopes and the stresses that act upon them. While weathering has often been portrayed in an over-simplified way by those
studying rock slope instability, in reality it consists of multiple processes, acting over different spatial and temporal scales, with many complex inter-linkages. Through a demonstration of the sources of non-linearities in rock slope weathering systems
and their implications for rock slope instability, this paper proposes five key linkages worthy of further study.
Solid and dissolved matter net output from a sample slope, subdivided into 5 homogeneous segments, is estimated from multi-annual erosion measurements in a small low-relief watershed covered with till-derived soils. Chemical processes prevail all
over, except on the most inclined segments (mainly in the slope inflexion zone). This is consistent with the constantly humid climate, the fresh earth material, and the dense vegetation cover. Polynomial fitting of solute and total losses against slope
length and angle are used to predict profile evolution.
Slopeevolution in upper Valdarno (Tuscany) : a method for morphometric analysis
Geomorphometry ; Italy ; Mass movement ; Model ; Slope ; Slope dynamics ; Toscana
Following a detailed description of the main parameters (geological, lithological, geomorphological and anthropogenic) which influence or cause slope instability, the first results of researches on landslides, including an analysis of a wide
representative area inside the Valdarno basin, are presented. In order to estimate the relationship between the distribution of mass movements and to model slopes affected by landslides, and the local lithological and morphological variations, a morphometric
computer analysis was carried out. In particular, several slope profiles along the Arno river valley floor, where steep surfaces occur, were analysed.