Please use this identifier to cite or link to this item:
|Title:||Contribution of intercepted subsurface flow to road runoff and sediment transport in a logging-disturbed tropical catchment||Authors:||Negishi, J.N.
|Issue Date:||Jul-2008||Citation:||Negishi, J.N., Sidle, R.C., Ziegler, A.D., Noguchi, S., Rahim, N.A. (2008-07). Contribution of intercepted subsurface flow to road runoff and sediment transport in a logging-disturbed tropical catchment. Earth Surface Processes and Landforms 33 (8) : 1174-1191. ScholarBank@NUS Repository. https://doi.org/10.1002/esp.1606||Abstract:||Hydrological and sediment fluxes were monitored for a 1 yr period in a tropical headwater catchment where a 3 yr old logging road caused substantial Hortonian overland flow (HOF) and intercepted subsurface flow (ISSF). On a 51.5 m road section, ISSF became an increasingly important component of total road runoff, up to more than 90% for large storms. The proportion of ISSF contributed by road cuts along more or less planar slopes compared with ISSF from a zero-order basin (convergent slopes) truncated by the road declined with increasing rainfall. During the monitored storms that generated ISSF along the road, on average, 28% of sediment export and 79% of runoff from the road section were directly attributable to ISSF. Estimates of total sediment export from the road surface (170 t ha-1 yr-1) and suspended sediment export from the logging-disturbed catchment (4 t ha-1 yr-1) were exceptionally high despite 3 yr of recovery. ISSF caused not only additional road-generated sediment export, but also exacerbated HOF-driven erosion by creating a poor foundation for vegetation recovery on the road surface. Copyright © 2007 John Wiley & Sons, Ltd.||Source Title:||Earth Surface Processes and Landforms||URI:||http://scholarbank.nus.edu.sg/handle/10635/49780||ISSN:||01979337||DOI:||10.1002/esp.1606|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Nov 25, 2021
WEB OF SCIENCETM
checked on Nov 10, 2021
checked on Nov 18, 2021
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.