IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2016  > Vol13 No.6
Suspended sediment transport analysis in two Italian instrumented catchments
Adriana GARCÍA-RAMA; Stefano Giorgio PAGANO; Francesco GENTILE; Mario Aristide LENZI
Corresponding AuthorAdriana GARCÍA-RAMA
Source PublicationJournal of Mountain Science
AbstractSuspended sediment transport in streams is an effective indicator of soil erosion at the watershed scale. This process was studied using the data obtained from two continuous monitoring stations installed in Italian watersheds, the Rio Cordon and Torrente Carapelle. The catchments have substantially different climatic, morphological and land use characteristics. The Rio Cordon, a small Alpine watershed, has been monitored since 1986, while in the Torrente Carapelle, a medium-size Mediterranean watershed, the monitoring station has provided data since 2007. Several flood events with suspended sediment transport were isolated in the two catchments, excluding those determined by snowmelt in the Rio Cordon as this process does not affect the Carapelle watershed. Analysis of the events showed different behavior in terms of hysteresis loop trends between water discharge (m3 s-1) and suspended sediment concentration (g l-1) values, as the Rio Cordon confirms clockwise relationships most frequently, while counter-clockwise trends represent the majority of cases for the Carapelle Torrent. The different behavior of the two watersheds was further analyzed by evaluating relationships between the main hydrological parameters related to suspended sediment transport. Runoff controls the total sediment budget in both catchments. In contrast, it was noted that the runoff process does not interfere in the magnitude of the suspended sediment transport in the Rio Cordon catchment, while variations due to the larger size of the catchment area characterize the events in the Carapelle watershed. Lastly, a flow peak threshold that determines the advance or delay of the hydrograph peak with respect to the sedigraph peak was established for the Carapelle Torrent, while it was not reported in the Rio Cordon.
KeywordSuspended Sediment Transport Flow Peak Threshold Continuous Monitoring Soil Erosion Hysteresis Analysis
Indexed BySCI
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Document Type期刊论文
CollectionJournal of Mountain Science_Journal of Mountain Science-2016_Vol13 No.6
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Adriana GARCÍA-RAMA,Stefano Giorgio PAGANO,Francesco GENTILE,et al. Suspended sediment transport analysis in two Italian instrumented catchments[J]. Journal of Mountain Science,2016,13(6):957-970.
APA Adriana GARCÍA-RAMA,Stefano Giorgio PAGANO,Francesco GENTILE,&Mario Aristide LENZI.(2016).Suspended sediment transport analysis in two Italian instrumented catchments.Journal of Mountain Science,13(6),957-970.
MLA Adriana GARCÍA-RAMA,et al."Suspended sediment transport analysis in two Italian instrumented catchments".Journal of Mountain Science 13.6(2016):957-970.
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