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Suspended sediment flux (SSF) supplied from sediment generated by logging and deposited on hillslopes, and that from unpaved road surface, were obtained in the Hiyamizusawa Brook basin, Hokkaido Japan. The ratio between SSF from deposited sediment fines (DSF) and that from suspended sediment in the road surface flow (SSR), i.e. the ratio DSF:SSR, was estimated from grain-size distributions of the...
Upland valley fills in Cobargo catchment, on the south coast of New South Wales, represent substantial sediment source zones. Contemporary channels within these fills are up to 8 m deep and 50 m wide for catchment areas < 10 km 2 Virtually all banks are eroding. Downstream of this sediment source zone, sediment transfer zones are characterised by sinuous channels that are partially choked...
The object of this study was to develop methods for investigating recent geomorphodynamics of aggradation processes by dendrogeomorphological analyses of the stems and the roots of partially buried spruces. Every accumulation process causes growth reactions in the affected trees, which is reflected in the growth rings. Analysis of the growth rings enables us to determine the time and the magnitude...
The geochemical behaviour of specific elements in fluvial sediments, topsoils, soil profiles and plant material on a sequence of Quaternary alluvial terraces was reconstructed semi-quantitatively using indices of accumulation or depletion with respect to abundance in the lithosphere, local soils and sediments. Topsoils of different ages and soil profiles are most clearly differentiated by the degree...
This paper investigates the predictability of the soil erodibility factor (K) in the revised universal soil loss equation from soil clay content (C), the Naperian logarithm of the geometric mean particle size (D G ) and organic matter content (OM), using a global dataset compiled from published studies. A multiple regression equation accounted for only 41% of the observed variance. Because...
Soil surface morphology, soil thickness and their evolution strongly affect infiltration processes. Badland surfaces are characterised by a substantially low plant cover and a reduced soil development controlled by high erosion rates. In the badlands of Tabernas (Almeri´a, SE Spain), the soil surface morphology exhibits a marked spatial variability, caused by different processes under moisture and...
A micrornorphological approach, based upon sets of closely-spaced thin sections taken from three sites located along a climatic and depositional gradient, has been utilised to reconstruct the sequence of pedogenic and sedimentary events leading to the development of the S1 paleosol in northwest China. Two main pedosedimentary stages related to regional changes in monsoonal controls are evident at...
Overbank floodplain deposits associated with a major flood which occurred in 1995 were collected shortly after the event from transects at 14 locations within the catchment of the River Ouse, Yorkshire, UK. At most sites, the sediment deposited nearest to the channel consisted primarily of sand-sized material, and the absolute particle size composition of the mineral fraction of the deposits evidenced...
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