(a) Map of erosion and deposition areas (color bar indicates the erosion (negative) and deposition (positive) depth (m)); (b) Bed profile change in section 1 1; (c) Bed profile change in section 2 2; (d) Bed profile change in section 3 3.
According to the map of erosion risks generated for the catchment, there were three distinct areas with different soil erosion features where fallout 137Cs was used to assess the soil redistribution pattern.
The rationale behind the DSI equation is explained and the examples of temporal and spatial data visualisation products presented include; a long term national wind erosion record (1965 2011), continental DSI maps, and maps of the erosion event types that are factored into the DSI equation.
In this study, we applied the detailed map of soil erosion that was generated using ETM+ images and ground sampling by Forest Range and Watershed Management Organization of Iran.
We applied this methodology to a debris-flow-prone area in the Oregon Coast Range, USA, where detailed mapping revealed areas of erosion and deposition along paths of debris flows that occurred during a large storm in 1996.
Soil mapping showed the degree of erosion of Luvisols and the resulting mosaic of different erosion and accumulation patterns.
The map of spatial distribution of erosion hazard showed that, in terms of both onsite and offsite effects, a major part of the watershed (around 65%) had experienced an erosion rate lower than the erosion tolerance threshold; hence, these areas were not faced with erosion hazard.
Based on these qualitative and quantitative analysis, a regime map for prediction of erosion-corrosion phenomena in pipes is established as a function of inlet flow conditions for both the phases.
Fig. 11 General view of Phewa watershed mapped with erosion type (with illustrations) measured on roads surveyed during 2014 field work.
From the 2004 erosion map, we observed that the spatial distribution of erosion, for the thirty-year period after planting, was mainly controlled by lithology and historical landscape structure, whatever the slope.
Geomorphic mapping and radiocarbon dating indicate synchronicity in patterns of erosion, deposition, and stability between drainage basins.
