| Abstract: | Current soil-erosion prediction technology addresses processes of rainsplash, overland-flow sediment transport, and rill erosion in small watersheds. The effects of factors determining sediment yield from larger-scale drainage basins, in which sediment movement is controlled by the combined small-scale processes and a complex set of channel and other basin-scale sediment-delivery processes, such as soil creep, bioturbation, and accelerated erosion due to denudation of vegetation, have been poorly evaluated. General suggestions are provided for the development of erosion-prediction technology at the geomorphic or drainage-basin scale based on the separation of sediment-yield data for channel and geomorphic processes from those of field-scale soil loss. An emerging technology must consider: (1) the effects on sediment yield of climate, geology and soils, topography, biotic interactions with other soil processes, and land-use practices; (2) all processes of sediment delivery to a channel system; and (3) the general tendency in most drainage basins for progressively greater sediment storage in the downstream direction. |
| Genre: | Article |
| ProdID: | 70020032 |
| Citation Author: | Osterkamp, W. R.; Toy, T. J. |
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| Citation End Page: | 157 |
| Citation Issue: | 3-4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Environmental Geology |
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| Citation Number Of Pages: | 6 |
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| Citation Search Results Text: | Geomorphic considerations for erosion prediction; 1997; Article; Journal; Environmental Geology; Osterkamp, W. R.; Toy, T. J. |
| Citation Start Page: | 152 |
| Citation Volume: | 29 |
| Citation Year: | 1997 |
| Type: | citation/reference |
| Text: | Geomorphic considerations for erosion prediction; 1997; Article; Journal; Environmental Geology; Osterkamp, W. R.; Toy, T. J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1007/s002540050113 |
| Date Other: | Wed, 1 Jan 1997 00:00 -0600 |
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