Arid area ; Ecosystem ; Ethiopia ; Gully erosion ; Plant canopy ; Rill wash ; Semi-arid area ; Soil conservation ; Soil erosion ; Water erosion
by approximately 68%, infiltration and spring discharge are enhanced and vegetation cover has improved. These impacts are evidenced and quantified by a comparison of the current landscape with a coverage of 30-year old photographs and substantiated by field
Cultivated land ; Experimental catchment ; Infiltration ; Land use ; Plant canopy ; Rill wash ; Slope gradient ; Soil properties ; Vietnam ; Water erosion
Two consecutive years of investigation on soil surface features, surface runoff and soil detachment within 1-m2 microplots on 40% slope highlighted the effects of land-use change, vegetation cover and biological activity on the water pathways
Deforestation ; Mass movement ; Mediterranean area ; Plant canopy ; Rainfall simulation ; Rill wash ; Road ; Seasonal variability ; Slope ; Soil erosion ; Spain ; Water erosion
and vegetated road backslopes during summer and winter in order to study seasonal differences. Preserving the vegetation cover over 20% is recommended for keeping soil loss rates under low levels, especially during winter.
European part of Russia ; Forest ; Glacial features ; Interglacial ; Nature reserve ; Palaeobotany ; Palaeogeography ; Plantcover ; Pleistocene ; Russian Plain ; State
that high plant diversity, cover and height were associated with good soil quality and favorable topographic positions with lower solar incident radiation, runoff and soil erosion potential.Correlation analysis and multiple linear stepwise regression
analysis affirmed that plant diversity was mainly correlated with soil water content, and soil water content was mainly determined by soil texture (clay content). Identifying the favorable topographic position and the distribution pattern of soil texture
, organic carbon content, bulk density and calcium carbonate content of the soil were determined for these 4 types of cover, inside and outside long-term grazing enclosures. Grazing increased the spatial heterogeneity of the soil properties examined via
2008
[b2] Dept. of Agronomy and Natural Resources, Inst. of Plant Sciences, Bet Dagan, Israel
Reconstructing the paleotopography beneath the loess cover with the aid of an electromagnetic induction sensor
to the Tertiary clay substrate. As a test case, a study site in central Belgium was used where the paleolandscape prior to the deposition of the loess cover was formed in Tertiary marine clay. The results revealed distinct erosion patterns on the surface
Interrelations of vegetal cover, silicophytolith content and pedogenesis of typical argiudolls of the Pampean Plain, Argentina
The aim of this work is to determine the silicophytolith content in Typical Argiudolls of the Pampean Plain, its relation with vegetal cover and its effect on pedogenesis. The AA. worked in 3 plots with different vegetal cover : grasses and shelter
This paper used 5 years (2001-2006) time series of MODIS NDVI images with a 1-km spatial resolution to produce a land cover map of Qinghai Province by a classification approach for different land cover types with special emphasis on vegetation
, especially on sparse vegetation, which synthesized Decision Tree Classification, Supervised Classification and Unsupervised Classification. The spatial distribution and dynamic change of vegetation cover in Qinghai from 2001 to 2006 were analyzed based
on the land cover classification map and 5 grade elevation belts derived from Qinghai DEM.
Snow cover and depth of freeze-thaw on the Tibetan Plateau : a case study from 1997 to 1998
Active layer ; China ; Mountain ; Periglacial features ; Permafrost ; Plateau ; Qinghai ; Snow ; Snow cover ; Soil temperature ; Tibet
(1997/1998) snow cover. Results indicate that anomalously deep snow cover influenced the pattern of soil freeze-thaw depth through its control over ground temperature. Snow cover can also contribute to the cooling process through its high albedo
prove that there is a dose relationship between the low snow cover and occurrence of sorted circles and that the distribution of peat hummocks has not any connection with snow cover. Relationship between solifluction lobes and ploughing blocks and snow
The aim of the paper is to introduce approach of landscape functioning assessment based on the relationship of three land cover types and radiation temperature that is regarded as an indicator and way how the solar energy is dissipated within
landscape. The results demonstrate that temperature is distributed across landscape depending on the type and structure of land cover. - (EN)
The response of partially debris-covered valley glaciers to climate change : the example of the Pasterze Glacier (Austria) in the period 1964 to 2006
This study investigates the response to recent climate change of the partially debris-covered Pasterze Glacier, the largest glacier of the Eastern Alps. The study concentrates on behaviour differences between the adjacent debris-covered and clean
Análisis de possibles errores en la base de datos Corine Land Cover (1990-2000) en la Comunidad de Madrid
Analyse d'erreurs possibles dans la base de données Corine Land Cover (1990-2000) pour la Communauté de Madrid
Analyse d'image ; Analyse des données ; Analyse diachronique ; Base de données ; CORINE Land Cover ; Cartographie ; Comunidad de Madrid ; Donnée ; Dynamique spatiale ; Erreur ; Espagne ; Méthodologie ; Occupation du sol ; Qualité du produit
La connaissance de l'état de l'occupation du sol par l'utilisation de la cartographie CORINE (Coordination of Information of the Environment) Land Cover permet d'étudier la dynamique spatiale d'interaction homme-environnement. La matrice de
, mimic ground temperature patterns. Although no wintertime field observations are available, the depth and duration of seasonal snow cover appears to be the primary source of variability.
Eastern Europe ; Europe ; Geophysics ; Mountain ; Periglacial features ; Permafrost ; Poland ; Slovak Republic ; Snow cover ; Soil temperature ; Spatial distribution ; Tatra Mountains
permafrost can exist beneath both thick and thin snow covers. The AA. infer that its presence may relate more to local circulation of cold air over the surface and low summer solar irradiation than to elevation and snowpack development.
to explain this. One is based on changing shear stress distributions within the channel with varying flood level, the other on the competition between cover and tool effects in fluvial bedrock erosion. They assess these processes for the Liwu River, Taiwan
, and conclude that cover and tool effects dominate the partitioning of lateral and vertical erosion in this case.