Purpose The sediment yield and erosion rate in an area can be estimated by calculating the volume of sediment retained by check dams. However, results can show unrealistic and imprecise conclusions if the sediment volume is not measured −1 −1 accurately, as tolerable erosion rates are usually below 10 t ha year . Materials and methods Our previous research developed a topographic method (the Sections Method) for measuring the sediment wedges created by check dams and the sediment yield with a high degree of precision to avoid the aforemen- tioned problem. Until now, however, it had only been tested for a few check dams. Here, we present a final and complete analysis applying this method to 113 check dams in a granitic restored area in the upper basin of the Corneja River (Central Spain), under a continental Mediterranean climate, to estimate an accurate mean erosion rate over 50 years, as well as the downstream influence of the check dams. Results and discussion Our results show that the check dams trapped 5365.93 m sediment, which represents a sediment −1 −1 −1 −1 export of 0.096 t ha year and a total sediment yield of 5.6 t ha year . These
Journal of Soils and Sediments – Springer Journals
Published: Jun 1, 2018
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