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Temporal variations of reservoir sediment sources in a small mountainous catchment in Korea
Earth surface processes and landforms, 2013-09, Vol.38 (12), p.1380-1392
Kim, Jin Kwan
Onda, Yuichi
Yang, Dong-Yoon
Kim, Min Seok
2013
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Kim, Jin Kwan
Onda, Yuichi
Yang, Dong-Yoon
Kim, Min Seok
Titel
Temporal variations of reservoir sediment sources in a small mountainous catchment in Korea
Ist Teil von
Earth surface processes and landforms, 2013-09, Vol.38 (12), p.1380-1392
Ort / Verlag
Chichester: Blackwell Publishing Ltd
Erscheinungsjahr
2013
Quelle
Access via Wiley Online Library
Beschreibungen/Notizen
ABSTRACT An understanding of the temporal variation in reservoir sedimentation and identification of the main sources of sediment are necessary for the maintenance of sustainable reservoirs. For this purpose, field measurements, sampling, and fingerprinting of reservoir sediment were undertaken from July 2005 to November 2007. Source fingerprinting of reservoir sediment was conducted using cesium‐137 (137Cs). The relative contributions of gully bank and forest road, and forest floor material to reservoir sediment were calculated using a mixing model. Bank and forest road material, estimated to make up about 96% of the reservoir sediment, was the dominant source. Enormous reservoir sedimentation, which amounted to about 60% of the total reservoir sedimentation during the observation period, occurred during a heavy rainstorm with an 80‐year recurrence time. To maintain the sustainability of the reservoir in this study, therefore, temporal and spatial preparation strategies for heavy rainstorms and bank and forest road erosion should be considered. However, spatial information on sediment sources from 137Cs fingerprinting is limited. To better identify the sediment sources spatially and temporally, further studies applying soil erosion models and more detailed field studies are needed. Copyright © 2013 John Wiley & Sons, Ltd.
Sprache
Englisch
Identifikatoren
ISSN: 0197-9337
eISSN: 1096-9837
DOI: 10.1002/esp.3379
Titel-ID: cdi_proquest_miscellaneous_1762140100
Format
–
Schlagworte
Bgi / Prodig
,
Catchments. Hydrological cycle
,
cesium-137
,
Fingerprinting
,
Forests
,
Hydrometeorology
,
Korea
,
mixing model
,
Physical geography
,
Rainstorms
,
reservoir sedimentation
,
Reservoirs
,
Roads
,
sediment sources
,
Sedimentation
,
Sediments
,
Temporal logic
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