Report

Contribution of Stream Channel Erosion to Sediment Yield from an Urbanizing Watershed

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Science  21 Nov 1997:
Vol. 278, Issue 5342, pp. 1442-1444
DOI: 10.1126/science.278.5342.1442

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Abstract

Stream channel erosion has long been suspected as the major contributor to long-term sediment yield from urbanizing watersheds. For San Diego Creek in southern California, measurements from 1983 to 1993 showed that stream channel erosion furnished 105 megagrams per year of sediment, or about two-thirds of the total sediment yield. Thus, because channel erosion can be a major source of sediment yield from urbanizing areas, channel stabilization should be a priority in managing sediment yield.

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